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First Successful Demonstration of CO2 Capture Technology

An anonymous coward writes "Global Research Technologies, LLC (GRT), a technology research and development company, and Klaus Lackner from Columbia University have achieved the successful demonstration of a bold new technology to capture carbon from the air. The "air extraction" prototype has successfully demonstrated that indeed carbon dioxide (CO2) can be captured from the atmosphere. This is GRT's first step toward a commercially viable air capture device."

521 comments

  1. Uh... by w3woody · · Score: 5, Funny

    Don't they call things that absorb CO2 from the air Trees...?

    And couldn't we sequester CO2 from the atmosphere by converting trees into an inert substance--such as paper--then burying it into landfills?

    I mean--couldn't we get a 'win/win' here by simply outlawing the recycling of paper?

    1. Re:Uh... by CriminalNerd · · Score: 4, Informative

      You create more carbon dioxide emissions by making paper and burying it to get rid of the minute amount of carbon that the tree(s) obtained from its photosynthesis process.

      Also, by outlawing the recycling of paper, you'll reduce the number of trees that are still alive, and eventually wipe out all the trees in the world, and thus, contribute MORE to global warming than minimizing its effect on the planet.

    2. Re:Uh... by Anonymous Coward · · Score: 3, Insightful

      Actually the more people need paper the more trees get planted to supply that demand, trees unlike other forms of carbon is completely renewable.

      Also recycling paper is a load of crap, it adds to polution by needing all sorts of nasty chemicals to bleach the paper so it can be re-used, not to mention all the petrolum needed to cart stuff from peoples homes to recyling centres, here they use multiple trucks, one for waste one for recycling.

      It costs the US$8bill a yr in subsidies to pay for recycling and cleaning up the chemical by-products, it costs much less to plant and cut down trees.

    3. Re:Uh... by Anonymous Coward · · Score: 5, Insightful

      Right, because trees grow instantaneously, bleach themselves, and require no transportation or other effort to be made into trees.

    4. Re:Uh... by B3ryllium · · Score: 1

      Now you're thinking with PORTALS.

      *ahem*

      I mean, maybe we should just design trees that DO do that.

    5. Re:Uh... by delt0r · · Score: 3, Informative

      You create more carbon dioxide emissions by making paper and burying it to get rid of the minute amount of carbon that the tree(s) obtained from its photosynthesis process. What the hell. Where else does the carbon come from? Trees don't pull it out of the ground. ALL the Carbon in a tree comes from the atmosphere. Its anything but minute.
      --
      If information wants to be free, why does my internet connection cost so much?
    6. Re:Uh... by solios · · Score: 1

      Yes, but they don't have trees in spaaaaace. Which is where something like this can likely do quite a bit of good.

    7. Re:Uh... by TerminaMorte · · Score: 3, Informative

      It was my understanding that lumber companies generally plant more trees than they cut down.

      So by recycling, less trees are cut... and in turn less are planted.

      In fact, we have more trees on earth today than we had in 1970. Hell, even more than we have 70 years ago.
       
        Source

    8. Re:Uh... by Jugalator · · Score: 1

      Would trees do the job we want to do fast enough?

      --
      Beware: In C++, your friends can see your privates!
    9. Re:Uh... by Eric+Smith · · Score: 1

      Yes, but they don't have trees in spaaaaace. Which is where something like this can likely do quite a bit of good.
      How do you propose that they extract CO2 from the vacuum of space? That would be a neat trick, but it wouldn't sove the problem of excess CO2 in the Earth's atmosphere.
    10. Re:Uh... by TapeCutter · · Score: 5, Interesting

      "Actually the more people need paper the more trees get planted to supply that demand"

      I think you will find most paper pulp comes from native hardwood forests, eg: Indonesia, Malaysia, S.America and even here in Australia. Some wealthy countries replant and/or carefully manage the natural regrowth, most just hack it down leaving large areas of barren hills. In Australia we plant non-native pine trees for timber resulting in vast areas of land covered with a pine tree monoculture that is largely devoid of any other lifeforms (even the bugs refuse to live in those forests).

      Speaking of cost, how much do you think it costs to cut a ton of timber, turn it into chips, ship it from Australia to Japan and then turn it into paper that is shipped all over the planet. I will wager those costs are far more than the cost of an extra garbage run to collect a ton of used paper that is ready for pulping. Having worked at a sawmill many moons ago the waste timber that was chipped on site was collected by a truck and driven ~200miles to a sea port.

      --
      And did you exchange a walk on part in the war for a lead role in a cage? - Pink Floyd.
    11. Re:Uh... by XNormal · · Score: 4, Interesting

      > And couldn't we sequester CO2 from the atmosphere by converting trees into an inert substance--such as paper--then burying it into landfills?

      Yes we can.

      But instead of trees, use fast-growing plants like switchgrass or elephant grass. Instead of making them into paper you can pyrolize them into a gas with high energy content and charcoal. Burn the gas to make electricity. Bury the charcoal.

      --
      Stop worrying about the risks of nuclear power and start worrying about the risks of not using nuclear power.
    12. Re:Uh... by Bender_ · · Score: 5, Informative


      Yes, but the paper companies only plant single species fast growing trees. Those can not replace the complex ecosystem in the rain forests.

    13. Re:Uh... by FiniteElementalist · · Score: 1

      Maybe I was asleep during the carbon cycle part of biology, but the reason why you couldn't just bury some derivative of a plant has escaped me. Since trees, for example, extract carbon from the atmosphere with photosynthesis then release it on decay, couldn't you theoretically extract some of the carbon from the wood then bury in abandoned mine shafts?

      The only thing I've heard about that was the proposition to bury charcoal derived from wood, but the counter to that was charcoal was too valuable to justify doing that.

      And the wiping out all the trees in the world talk sounds pretty bogus to me. Long before the trees are wiped out the price of wood would skyrocket to the point to either greatly restrict the use of paper or cause for the substitution of some other plant being used for paper, like hemp or reeds.

    14. Re:Uh... by w3woody · · Score: 1

      By your theory our eating potatoes will eventually cause potatoes to go extinct, and our eating corn and using corn for fuel will cause corn to go extinct. And for God's sake don't eat bread; we're quickly running out of wheat to make it with!

      Trees that are used to make paper are farmed; that is, trees are planted and harvested in regular cycles on tracts of private land in order to provide the pulp and necessary for making paper.

      We don't generally use old-growth trees and slow-growing trees for making paper; that timber, if cut, is too valuable for use as paper and winds up being used in construction. And environmentalism has increased the effective cost of using old-growth forests for wood products.

      And while my comment about outlawing paper was intended to be humerous, the reality is this: post-consumer unbleached recycled pulp isn't white; turning it white requires a lot of bleaching, concentrating the various inks on the paper into a toxic sludge which has to go somewhere. So recycling isn't exactly the tree saving (do you stop eating potatoes to keep them from going extinct?) environmentally friendly (chlorine bleach anyone?) activity that it has been made out to be.

      Perhaps we could save a step and farm trees, and bury them directly in the ground in order to lock their content of CO2 away, as we clear cut and plough under a tract of land in order to make space for more farmed trees. But the end result is the same: we're taking CO2 out of the atmosphere as we replace older farmed trees with saplings.

    15. Re:Uh... by ceoyoyo · · Score: 2, Insightful

      You're absolutely correct. You should all pay us Canadians (and probably the Russians too) to cut down trees and sink them into the nearby Pacific ocean. It's even all downhill!

      We replant native species here and the forest area in the country has not changed in twenty years despite a thriving forestry industry.

      Seriously, do you think any fancy process that involves heating things to 900 degrees that we come up with is going to be more efficient at absorbing carbon than a forest? A GROWING forest since a mature one doesn't absorb net carbon.

    16. Re:Uh... by Nefarious+Wheel · · Score: 1
      But instead of trees, use fast-growing plants like switchgrass or elephant grass.

      Fun treatment on this in an old SF novel "The Complete Venus Equilateral" by George O. Smith. Be careful with the air plant!

      --
      Do not mock my vision of impractical footwear
    17. Re:Uh... by w3woody · · Score: 1

      And the wiping out all the trees in the world talk sounds pretty bogus to me. Long before the trees are wiped out the price of wood would skyrocket to the point to either greatly restrict the use of paper or cause for the substitution of some other plant being used for paper, like hemp or reeds.
      You forget the third alternative: making tree farming a much more profitable industry.

      Of course it's easy to forget the third alternative: it requires admitting the fact that many trees we use are already farmed, rather than stripped from old growth forests in an unsustainable fashion.

      In fact, thank the environmental movement for tree farms: by convincing the public that each time a tree is cut down from an old-growth forest God kills a kitten, it has made tree farming more profitable.
    18. Re:Uh... by Alioth · · Score: 0, Redundant

      We could stop cutting down large swathes of forests for a start.

      The landfilled paper will rot and methane and CO2 will be released (which is a worse problem). If you want to do something with the paper it's best to burn it and actually get some energy out, rather than let it decompose in a landfill.

      Better still, someone else mentioned switchgrass - cellulosic ethanol is the way forward for ethanol, not ethanol from corn. Fortunately, the feedstock for cellulosic ethanol can be any invasive weed that can be grown on land that's marginal for agriculture and won't require tons of fertilizer.

    19. Re:Uh... by zcat_NZ · · Score: 1


      And couldn't we sequester CO2 from the atmosphere by converting trees into an inert substance--such as paper--then burying it into landfills?

      Easier to just dump the trees in a big pit of mud. Without oxygen they won't rot and they'll sit there for millions of years slowly petrifying into coal.

      Here's a better idea. How about we just stop digging up all the trees that already got buried millions of years ago and burning them for fuel?!!

      --
      455fe10422ca29c4933f95052b792ab2
    20. Re:Uh... by fan+of+lem · · Score: 1

      You don't understand - it's trees woven around a ginourmous fishing net, which will be carried off by four aircraft, which will circle the atmosphere as often as the neighborhood garbage man collects your trash. The captured CO2 will then be dumped at the dark side of the moon, where Eclipso lives. We get to save the world from global warming AND evil forces!

    21. Re:Uh... by jimicus · · Score: 2, Funny

      In Australia we plant non-native pine trees for timber resulting in vast areas of land covered with a pine tree monoculture that is largely devoid of any other lifeforms (even the bugs refuse to live in those forests).

      Maybe they don't like the smell of cheap disinfectant.

    22. Re:Uh... by Mathinker · · Score: 1

      Totally weird, when I saw the comment http://science.slashdot.org/comments.pl?sid=232289 &cid=18881359 above, and the poster's Slashdot ID, I thought about a totally different part of that exact same book, the matter duplicator stuff at the end.... Strange coincidence....

      Actually, I don't exactly remember the part you're referring to, I guess it's time to reread it!

    23. Re:Uh... by Whiteox · · Score: 1

      OH PLEASE could you start by deforesting Japan?

      They really deserve to be un-treed. Mind you, I don't mind banzai, just get rid of the bigger ones!

      Thanks in gratitude!

      --
      Don't be apathetic. Procrastinate!
    24. Re:Uh... by Anonymous Coward · · Score: 0

      post-consumer unbleached recycled pulp isn't white; turning it white requires a lot of bleaching, concentrating the various inks on the paper into a toxic sludge which has to go somewhere.
      So essentially you are telling us that used paper is toxic waste. We'd rather see it properly taken care of, then dumped out on a landfill (from where various inks will leak into underground water as somewhat less concentrated but still toxic sludge). Perhaps it should not be completely recycled (into white thin sheets for writing and printing upon) but just decontaminated and reused for some other purpose? Papier Mache could make light and relatively strong construction material. Perhaps it could be used as less toxic alternative to MDF engineered wood, or some clever combination of wood fiber and paper sheets would have even superior characteristics to MDF on all accounts?
    25. Re:Uh... by FredThompson · · Score: 4, Insightful

      Yes, but the paper companies only plant single species fast growing trees. Those can not replace the complex ecosystem in the rain forests.

      --

      Modding that post as 5, Informative doesn't make any sense unless it was to illustrate popular misconceptions and propaganda.

      Lumber companies, like any other farmers, would prefer to plant in places where the crops will grow and can be harvested for a profit and new crops grown. Rain forests are particularly POOR places to grow trees. The primary reason the U.S. imports so much lumber is because of Clinton-era restrictions on tree harvesting.

      The myth of clear-cutting as a lumbering practice is also crazy. Think about it, the infrastructure needed to process and move the crop would have to be continually rebuilt. How many farmers do that? They will rotate the harvest areas as a way to let the soil regenerate but they don't strip the surface and continually move on.

      Recycling paper, FWIW, yields a far inferior product in many, many ways. The more paper fibers are handled, the shorter they become. Compare an American corrugated box to one from China or Southern Europe. You'll find the recycled paper does not have the same strength. New fiber must be added or you eventually end up with a useless substance.

      The idea that only one species of tree is planted by lumber companies is pure propaganda and incredibly naive. Like any other plant, different types of trees have different types of fibers. Different types of fibers are used to make different types of papers. It would no more be feasible to plant only one type of tree than it would to plant only one type of any other crop because the soil would become depleted. Paper companies are lumber companies. Are all the boards at a lumber store the same type of wood? Of course not.

      Lumber companies are farmers. Remember that and use it as a way to filter out the propaganda. You might be interested to learn the opinion of one of the founders of Greenpeace: http://www.corrugatedmachines.com/2007-04-09%20BCN %20-%20Trees%20are%20the%20Answer.pdf

      His comment that people should fight the auto and oil industries is more than a little whacked. Imagine what it would be like without plastics and the internal combustion engine. We'd be living the same as people did before the industrial revolution which would be a far shorter lifespan and much, much harder lives...burning coal and wood which genreate far more pollution/energy but that's a whole different topic...

    26. Re:Uh... by simm1701 · · Score: 2, Insightful

      Specifically bury the charcoal in your fields - it increase the fertility of the soil (same effects as peat soil or volcanic soil)

      --
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    27. Re:Uh... by Anonymous Coward · · Score: 0

      Mars doesn't have trees.

    28. Re:Uh... by ErroneousBee · · Score: 4, Funny

      back of envelope maths:

      From TFA (or we could go to the Stern Report):
      "A device with an opening of one square meter can extract about 10 tons of carbon dioxide from the atmosphere each year. If a single device were to measure 10 meters by 10 meters it could extract 1,000 tons each year. On this scale, one million devices would be required to remove one billion tons of carbon dioxide from the atmosphere. According to the U.K. Treasury's Stern Review on climate change, the world will need to reduce carbon emissions by 11 billion tons by 2025 in order to maintain a concentration of carbon dioxide at twice pre-industrial levels. "

      So we need to absorb 11,000,000,000 tonnes per year.

      Assume a tree planted today will weigh 50tonnes in 20 years time.
      So 1 tree absorbs 50/20 = 2.5tonnes/year.
      So we need 11,000,000,000 / 2.5 = 4,400,000,000 or 4 billion trees.

      1 tree needs say a square of sides 3 meters, or 9 meters square.

      A total land area of 4x9 billion square meters = 36billion square meters = 14,000 square miles, or just over one Belgium in old money.

      Seems doable, we don't need Belgium, and the US can chip in a Wales to make up the shortfall.

      --
      **TODO** Steal someone elses sig.
    29. Re:Uh... by Bastard+of+Subhumani · · Score: 1

      We'd be living the same as people did before the industrial revolution which would be a far shorter lifespan and much, much harder lives...burning coal and wood which genreate far more pollution/energy but that's a whole different topic...
      More pollution per capita - but I suspect that (as you hinted) under that system there'd be a lot less people around...
      --
      Only three things are certain; death, taxes, and apocryphal quotations - Ben Franklin.
    30. Re:Uh... by gerrysteele · · Score: 5, Funny

      So what about genetically modified trees that consume superstancial amounts of CO2?

      Trees that grow high into the sky. Trees that grow so big we can build cities in their overlapping branches.

      Trees my friends that bear bounties fruits and sustenance for all mankind alike?

      Trees so beautiful they would make a grown man weep in awe.

      And these trees I sayeth, they shall become our new friend. Our new master. Our new servant.

      All hail our new genetically modified tree overlords.

    31. Re:Uh... by pdc · · Score: 1

      Trees both consume and produce CO2 for the first few years of life; it is only old trees that contain sequestered carbon. This is why planting new forests to replaced felled forests does not work.

      Paper buried in landfill will break down eventually, releasing the CO2 one way or another.

    32. Re:Uh... by poopdeville · · Score: 1

      It costs the US$8bill a yr in subsidies to pay for recycling and cleaning up the chemical by-products, it costs much less to plant and cut down trees.

      That's not just the paper you're paying for. Glass is very expensive to recycle, but it's still a net savings.

      --
      After all, I am strangely colored.
    33. Re:Uh... by TapeCutter · · Score: 1

      "Maybe they don't like the smell of cheap disinfectant."

      I think you are spot on!

      --
      And did you exchange a walk on part in the war for a lead role in a cage? - Pink Floyd.
    34. Re:Uh... by poopdeville · · Score: 1

      The myth of clear-cutting as a lumbering practice is also crazy. Think about it, the infrastructure needed to process and move the crop would have to be continually rebuilt. How many farmers do that? They will rotate the harvest areas as a way to let the soil regenerate but they don't strip the surface and continually move on.

      You can say that, but they really do "rebuild" the infrastructure, as far as they need to. Loggers currently use big trucks and specialized (but moveable) equipment to load the timber onto the trucks.

      I live in Oregon. I've seen very fucking huge forests clear cut. Yes, they plant trees when they're done. And it'll take 20 years before they're ready to come back. So they move on every 5 years or so, and will be back in 4 cycles. Should that make the ecosystem feel any better?

      --
      After all, I am strangely colored.
    35. Re:Uh... by sentientbeing · · Score: 5, Funny

      Actally, Ents have been observed in the wild to strip off their own leaves, bleach themselves and climb into recycling chipping machines in paper mills when depressed.

      --

      ------
      beware he who would deny you access to information, for in his mind he dreams himself your master
    36. Re:Uh... by WgT2 · · Score: 1

      Where's the 'wet-rag' mod option?

    37. Re:Uh... by WgT2 · · Score: 1

      Trees eventually rot and sure do burn easily.

    38. Re:Uh... by jonadab · · Score: 5, Informative

      > I think you will find most paper pulp comes from native hardwood forests

      Hardwoods for the most part can be sold as lumber and are more valuable in that form than as paper, even in the poorest countries. Making paper out of oak and maple is financially the equivalent to melting down dimes and reforming them in the shape of nickels. I'm not saying it never happens, but it is not the norm. Paper is generally made from fast-growth wood that doesn't make very valuable lumber, typically pine or other conifers.

      What's really interesting is that it requires less total financial outlay, and less energy (discounting solar radiation that would otherwise not be harnessed), to maintain fast-growth pine plantations and make paper from those, versus recycling paper. Of all the things that you can recycle, paper is substantially the least worthwhile, both environmentally and economically. (The most worthwhile is probably glass, but just about any metal is quite worth recycling too. Plastics vary.)

      --
      Cut that out, or I will ship you to Norilsk in a box.
    39. Re:Uh... by Anonymous Coward · · Score: 0

      "...even the bugs refuse to live in those forests"

      I bet dark elves roam those forests now...

    40. Re:Uh... by TapeCutter · · Score: 1

      "Making paper out of oak and maple is financially the equivalent to melting down dimes and reforming them in the shape of nickels."

      Yep, and that is exactly what is happening in the large rainforests around the world. Except the species are murbu, kapur, ect and the good lumber is used for window frames, plywood, decking/flooring, ect.

      I have no objection to pine forests in the US (I don't know much about them), AFAIK they are native to the US where as over here they are an "alien" species. We have native softwoods that will grow 3X as fast as pine and actually enhance the environment. I also hear dope plants are very efficient at turning sunlight into paper.

      --
      And did you exchange a walk on part in the war for a lead role in a cage? - Pink Floyd.
    41. Re:Uh... by Anonymous Coward · · Score: 0

      Actually most woodchips in Australia come from state managed forests which are then regrown as native Eucalypt forests, NOT pine plantations. Carbon neutral...

    42. Re:Uh... by Curtman · · Score: 4, Insightful

      Within the United States, formations in Ohio, Oklahoma and Michigan, among other sites, appear to hold promise for long-term CO2 storage underground.

      So the plan is actually to stick this stuff in barrels and bury it?

      Here in Canada, we've been hearing a lot about how the Conservatives plan to focus on capturing and sequestering carbon instead of actually reducing emissions, and living up to our Kyoto obligations. I think it might be a tiny bit shortsighted to think we can continue pumping this crap into the atmosphere at ever increasing rates, then capture it and stick it underground along with the nuclear waste and other garbage that we bury.
    43. Re:Uh... by hey! · · Score: 1

      This is only possible if the energy used in recycling comes from carbon emitting sources.

      The main reason for using carbon emitting energy sources is that carbon containing molecules are so convenient for storing and transporting energy.

      --
      Post may contain irony: discontinue use if experiencing mood swings, nausea or elevated blood pressure.
    44. Re:Uh... by jmo_jon · · Score: 1

      What's this with captureing CO2!? Our friends at the "Competitive Institute" very well explain that CO2 is our friend. We should not capture our friends!

      Play Energy

    45. Re:Uh... by sumdumass · · Score: 2, Insightful

      Isn't underground were it came from? I mean seriously, the entire Idea behind using Biofuels instead of fossil fuels is because the carbon on biofuels are already on the earths surface and there is no net gain. Wouldn't this be the same? placing Co2 back underground were is came from?

    46. Re:Uh... by Oligonicella · · Score: 1

      Got any idea just how much carbon is in a tree? It ain't all locked up in the sugar produced by photosynthisis, bub.

    47. Re:Uh... by gvc · · Score: 2, Interesting

      So the plan is actually to stick this stuff in barrels and bury it?
      (In Canada anyway) Not in barrels, but diffused through stable geological formations. And the CO2 that they're planning to capture is that generated by the oil and/or electricity production process, not from free air.

      Sure the capacity of the geological formations is limited, but so is the amount of oil or coal that can be recovered from any particular place. While I agree that carbon sequestration have long-term sustainability issues, they are perhaps more managable than the alternative -- simply using the sky as a garbage dump.

    48. Re:Uh... by blind+biker · · Score: 1

      I have been supporting this idea for the longest time. Just put carbon-containing materials (like paper, plastics, other organic materials) in landfills. If companies want to porduce paper or other tree-requiring stuff, they can plant new trees (thus sequestering more CO2).

      So we could finally put back into the earth a little bit of that carbon that we have removed during the centuries.

      --
      "The agriculture ministry is not in charge of Gundam" - Japanese ministry official.
    49. Re:Uh... by budgenator · · Score: 1

      I'm not a logger, but forestry companies plant a shitpile of trees; I've seen them, they've got people planting trees 8 hours a day. the trees they plant grow faster and produce the kind of wood that they really want, some woods grow pulp-wood and others grow structural-wood, it's very scientific and very sustainable. Right now illegal tree poaching is more of a danger to the tropical rain-forrests, the legit forrestry industry and even produces more greenhouse gasses than transportaion; Popular Mechanics had an informative articale in this months magazine.

      --
      Apocalypse Cancelled, Sorry, No Ticket Refunds
    50. Re:Uh... by Anonymous Coward · · Score: 0

      Mature trees play a minor roll in removing carbon from the environment. The GP post is correct in that sense. We are better off cutting down mature trees and planting young trees that will capture carbon as they grow.

      Instead of paper though I think new home construction might be a better way to sequester the carbon.

    51. Re:Uh... by AGMW · · Score: 2, Informative
      and sure do burn easily.

      Well, Giant Redwood, amongst others, has bark is that is (from the link) "fibrous, furrowed, and may be 60 cm (2 ft) thick at the base of the columnar trunk. It provides significant fire protection for the trees".

      From the 2nd link "The thick, tannin-rich bark, combined with foliage that starts high above the ground provides good protection from both fire and insect damage".

      Oh well. I suppose they might rot.

      --
      Eclectic beats from Leeds, UK
      handmadehands.co.uk
    52. Re:Uh... by AGMW · · Score: 1
      I think it might be a tiny bit shortsighted to think we can continue pumping this crap into the atmosphere at ever increasing rates, then capture it and stick it underground along with the nuclear waste and other garbage that we bury.

      I'd agree if that's all we do, but as another weapon in our armoury it absolutely makes sense! Sure, we should be trying, where feasible, to cut down on our emissions so we don't make it worse, but it also makes sense to try and clean up the mess we already made so we can try and make it better!

      --
      Eclectic beats from Leeds, UK
      handmadehands.co.uk
    53. Re:Uh... by ephedream · · Score: 1

      Yes, we plant many more trees in the clear-cut land because a lot of them will not survive to grow. Also, "more trees" does not necessarily mean "healthier ecosystem." If you cut down a working, diverse ecosystem and replace it with a monoculture of economically advantageous trees, it is bad for life in the forest. Also, cutting down large swaths of trees changes soil PH, etc. and generally is not good for the environment.

      So, More Trees =! Better environment
      And Planting Trees =! Planting a Forest (thriving, diverse ecosystem that supports life). What you get is a tree farm, which is totally different.

    54. Re:Uh... by Dausha · · Score: 1

      "You create more carbon dioxide emissions by making paper and burying it to get rid of the minute amount of carbon that the tree(s) obtained from its photosynthesis process."

      Right. The better way to reduce CO2 emissions is to just burn the trees where they stand. Landfills are the obvious cause of CO2 emissions.

      --
      What those who want activist courts fear is rule by the people.
    55. Re:Uh... by watzinaneihm · · Score: 1

      Those can not replace the complex ecosystem in the rain forests.
      Yes, but we do not need complex ecosystems to produce Oxygen from C02. Any Carbon based life form which obtains most of the carbon from C02 will do. Softwood does fine. I am not saying that creating paper does not require energy (which in turn produces C02), that is a different point altogether. Your argument is tangential to the discussion.
      --
      .ACMD setaloiv siht gnidaeR
    56. Re:Uh... by BigDogCH · · Score: 2, Interesting

      "
      Modding that post as 5, Informative doesn't make any sense unless it was to illustrate popular misconceptions and propaganda.

      Lumber companies, like any other farmers, would prefer to plant in places where the crops will grow and can be harvested for a profit and new crops grown. Rain forests are particularly POOR places to grow trees. The primary reason the U.S. imports so much lumber is because of Clinton-era restrictions on tree harvesting.

      The myth of clear-cutting as a lumbering practice is also crazy. Think about it, the infrastructure needed to process and move the crop would have to be continually rebuilt. How many farmers do that? They will rotate the harvest areas as a way to let the soil regenerate but they don't strip the surface and continually move on.
      ...

      The idea that only one species of tree is planted by lumber companies is pure propaganda and incredibly naive. Like any other plant, different types of trees have different types of fibers. Different types of fibers are used to make different types of papers. It would no more be feasible to plant only one type of tree than it would to plant only one type of any other crop because the soil would become depleted. Paper companies are lumber companies. Are all the boards at a lumber store the same type of wood? Of course not.
      "

      Misconceptions? WTF? I disagree, however I can only speak for what I have seen in the Midwest US.

      I don't know where you live, but in our area the lumber companies do not own the land they are deforesting. They talk land owners into allowing their trees to be harvested, they strip the land down to a point that it doesn't recover for 30-50 years, and they move on. If they replant, it will be whatever tree saplings they have on hand, and surely will be a single species.

      The land is hilly here, so even after 50 years, the bluffs and hills are still scarred and will never recover their beauty. Erosion is nearly uncontrollable for at least a decade after the deforestation. Sure, they only take the "big trees", but the remaining trees die from injury, or loss of topsoil. Those that do live are sickly and unhealthy, usually falling down during storms. The forest undergrowth doesn't even come back because of the topsoil washing down into the valleys and streams.

      In our area of the Midwest US, lumber companies are NOT farmers. It is the farmers that they screw over.

    57. Re:Uh... by Anonymous Coward · · Score: 0
    58. Re:Uh... by AndersOSU · · Score: 1

      Cellulosic EtOH is not (IMO) the way forward. The reason we use corn is because there is a moderate amount of available sucrose, which is easily convertible into ethanol - we've been doing it since the dawn of civilization. The reason we're not going to succeed in making switchgrass ethanol (from an economic perspective) is the same reason no one has made a switchgrass beer. There just isn't enough delicious sugar.

      The was forward (IMO) is diesel. Turn soybeans, or better yet algae into oil. Note that making soybean oil is already a viable commercial venture.

      It's actually pretty simple the more filling (calories/lb) something is the more energy it contains, and the more viable a fuel source it is. It goes something like this algae>sugar cane>soy>corn>wheat>rice>>switchgrass

    59. Re:Uh... by MobyDisk · · Score: 3, Funny

      So the plan is actually to stick this stuff in barrels and bury it? Thus, solving the problem once and for all. Once and for all!
    60. Re:Uh... by fotbr · · Score: 1

      Your conservatives are learning the wrong thngs from our conservatives.

      If I were you, I'd suggest they KEEP learning as the idiots in our current administration find out that they're not above the law. That way maybe they'll change their tune before canada ends up with a bunch of monkeys like Bush and Co.

    61. Re:Uh... by Cathoderoytube · · Score: 1

      There's a reasonable misconception about the CO2 absorbing qualities of trees. It's not that good, and when a tree dies it releases all the CO2 it absorbed. Ironically the asphalt in roads is a lot better at absorbing CO2 than trees could ever hope to be.

      --
      I have nothing compelling to say
    62. Re:Uh... by Ihlosi · · Score: 1
      It's not that good, and when a tree dies it releases all the CO2 it absorbed.



      Whoever put that in your head is talking BS and probably a crony of Big Energy(tm). Trees do not spontaneously combust when they die. Things like soil and coal are proof of this.

    63. Re:Uh... by networkBoy · · Score: 1

      not really. Glass costs more to recycle if only because the foundries are located close to their feedstock source. The energy consumed in sorting, cleaning, and transporting the glass to the crusher and then to the foundry outweighs the savings of recycling.
      Did you know there is a company out there that will take your rail cars of bottles and grind them into a coarse powder, then ship the result back to you? This is so you can make more efficient use of your landfill space!

      -nB

      --
      whois gawk date unzip strip find touch finger mount join nice man top fsck grep eject more yes exit umount sleep dump
    64. Re:Uh... by RocketScientist · · Score: 1

      Yeah, because recycling paper doesn't take any carbon dioxide emissions at all. The collection and transport of recycled paper is a 100% carbon neutral endeavor--it is not in any way a capitalist activity, it's pure of heart, so it's carbon use is neutral. Fluffy bunnies with hearts over their heads accompany every single big, black-cloud spewing recycling truck as it makes its rounds. You know, the one that follows the trash truck from door to door. The trash truck has little farting cows following it around. Black ones.

      The idea that recycling paper is good for the environment is like dipping your Oreos in Diet Coke to get rid of the calories. All of the carbon costs of collecting recycled paper are FREE, but all the costs of making the paper in the first place are bad. That way the recycling cult in this country gets its math to come out right.

      Which uses more energy: Using large machines to pick up and dismember trees, turning them into new paper, or taking a few dozen significantly smaller garbage trucks around from house to house (or, if you will, driving a thousand Prius [what is the plural of Prius anyway?] to a recycling center to get the equivalent mass)? If you voted for the Prius, you're wrong.

      (By the way, while I think recycling paper is stupid, recycling aluminum, steel, and some plastics is a very GOOD idea, because the processes to create those materials are VERY energy intense and/or have nasty byproducts, and recycling those materials is carbon negative even if you have to drive around to every house and pick the stuff up. Go read up on how aluminum is refined from bauxite if you want to see the very definition of "energy intensive".)

      If you're that worried about recycling paper, QUIT USING THE STUFF and start campaigning against physical junk mail. 99% of the paper I throw out is junk mail. The other 1% is pizza boxes and other food wrappings.

    65. Re:Uh... by slughead · · Score: 1

      Seems doable, we don't need Belgium

      No kidding, their chief export seems to be evil super villains anyway.

    66. Re:Uh... by SatanicPuppy · · Score: 1

      Mod parent up. Trees are basically water and carbon. It ain't coal or oil, but wood is pound for pound one of the best carbon sinks on the planet.

      --
      ad logicam Claiming a proposition is false because it was presented as the conclusion of a fallacious argument.
    67. Re:Uh... by SatanicPuppy · · Score: 1

      The problem, aside from the whole "destroying ecosystems" thing, is that the trees that paper companies plant are less effective at holding carbon than the trees that grew in those areas in the first place. They plant quick growing, quick dying trees, and in a natural system, those trees would be succeeded by slower growing trees with much longer lifespans. Pines succeeded by hardwoods, and by longer growing pines.

      --
      ad logicam Claiming a proposition is false because it was presented as the conclusion of a fallacious argument.
    68. Re:Uh... by Snarkhunter · · Score: 1, Funny

      Well, maybe if you hippies stopped bitching about genetic engineering we might have trees that'd DO that!

      I for one welcome our self-pulping, mobile arboreal overlords.

    69. Re:Uh... by bob.appleyard · · Score: 1

      Glass? Could you explain why? It's not like we're going to run out of silica any time soon...

      --
      How dare you be so modest!! You conceited bastard!!
    70. Re:Uh... by budgenator · · Score: 1

      you can just make sawdust, add water and heat and extract H2 for fuel and CO2 as a waste to sequester, the biggest reason they use natural gas to make hydrogen is because the petro-industry is used to handleing it and thinking that way. the CO2 can just be dumped into the ocean where the presure will keep it a liquid pool on the bottom until it sinks into the muck

      --
      Apocalypse Cancelled, Sorry, No Ticket Refunds
    71. Re:Uh... by mysticgoat · · Score: 2, Interesting

      It was my understanding that lumber companies generally plant more trees than they cut down.

      I think when you look at it closely, you will find that "more" is a more subtle and complex concept than it first appears to be.

      In terms of simple counting, the "tree growing company" and others like it do plant more seedlings than the count of mature trees harvested. So if I pick up four pebbles while a backhoe picks up a single boulder, I'm holding more rock than the backhoe is. Yeah.

      In context with air scrubbers, an appropriate kind of "moreness" would be the volume of air swept by needles. In a 10 acre stand of mature douglas fir, that volume begins about 20 feet above the ground and extends upward for another 80 feet. The stand has an active scrubbing volume of 60 acre-feet. Transpiration and the temperature differential caused by its shade assure that there is a constant flow of air through the canopy, even when there is no external wind.

      In a freshly replanted 10 acre plot, the volume of effective scrubbing starts a couple of inches above the ground and is about 6 inches deep, at most. Even if all other factors were equal, the scrubbing volume is no more than 8% of the mature forest it has replaced. Considering other factors, like density of needles and the loss of "churn" on still air days, the effective scrubbing volume is much less than 1% of a mature stand.

      On reflection, it seems we need to know much more about "more" than the forest products industry will willingly tell us.

    72. Re:Uh... by SatanicPuppy · · Score: 2, Informative

      Bull. Shit.

      Do a GIS for clear cut and you get 2,300,000 pictures.

      I live in timber land, and while there are a few who cut responsibly, hardly any corporation does. They do it quick with a bulldozer, and they move on to the next lot. They don't pay attention to stream buffers, they don't pay attention to tree species, and they don't replant in a timely manner.

      And while we're at it, where does the illusion that farmers are models of ecology come from? Erosion, topsoil problems, fertilizer and pesticides. They're out to make a buck, just like the damn timber companies.

      --
      ad logicam Claiming a proposition is false because it was presented as the conclusion of a fallacious argument.
    73. Re:Uh... by mstahl · · Score: 1

      So . . . we should just bury tons of lithium? Brilliant!

    74. Re:Uh... by budgenator · · Score: 1

      C6H10O5 6*12=36, 5*16=80+10, so probably about 25% carbon after you add in some water.

      --
      Apocalypse Cancelled, Sorry, No Ticket Refunds
    75. Re:Uh... by SueAnnSueAnn · · Score: 0

      You beat me to it....
      The best and most fuel-efficient technology for removing CO2 from the air is called a Tree. Sounds to me like someone stuck in a college dorm somewhere who has not seen the sun in perhaps a year is over-thinking the problem.

    76. Re:Uh... by SQLGuru · · Score: 2, Informative

      I think the reason that Glass recycling is mentioned is that it is relatively "lossless" and probably uses less power to recycle than it does to produce initially.

      Paper recycling - shred, treat chemically, reform as paper (which, mind you, would be of a lesser grade than the original)
      Plastic recycling - melt, remove impurities, reform as plastic (again, lesser grade)
      Glass recycling - melt, reform. I believe impurities would be removed (burned off) during the melting process. I also believe that the strength of the recycled product would be no less than the original product.
      Metal recycling - melt, seperate, reform. Impurities and strength comments similar to glass.

      So, from an economical perspective, glass recycling is "easy". The question would be if it was cheaper to make new or recycle old. I have to think that recycle old is cheap, what with it being done for so long (I remember doing it in the 80's) and in fact the most notoriously rewarded (Seinfeld episode anyone?)

      Layne

    77. Re:Uh... by orielbean · · Score: 1

      I like that Georgia website, but they don't source any of their myth/fact bullet points! I don't mind unsourced info except when they use numbers to demonstrate their points...

    78. Re:Uh... by SoupGuru · · Score: 1

      And the other "cool" thing about fast growth pulpwood plantations is that you can get your plots on a nice rotation and not have to adversely effect nearby native forests.

      --
      What doesn't kill you only delays the inevitable
    79. Re:Uh... by JimBimBam · · Score: 3, Informative

      So the plan is actually to stick this stuff in barrels and bury it? Here in Norway there has been a lot of talk about CO2 capturing technologies, especially a process using amines to bind the carbon. This is because we are running out of waterfalls to pipe into turbines, and some people want to build gas turbines to cover the energy deficit. The drawback is of course the CO2 emissions, and there are plans to capture this and use it as pressure support so as to extract more oil and natural gas from the oil fields in the North Sea. They way they want to do this is to pump it back into the aquifers (permeable rock) that the oil resides in. I imagine that the sites in Ohio, Oklahoma and Michigan have some sort of aquifers as well.
    80. Re:Uh... by inviolet · · Score: 5, Informative

      Hi. I own a pine tree farm outside of Cleveland, Texas, and I am here to reply to your assertions.

      I think you will find most paper pulp comes from native hardwood forests, eg: Indonesia, Malaysia, S.America and even here in Australia.

      Hardwood is a piss-poor way to generate pulpwood, because hardwood grows so slowly. The softwood pines, and some of the new varieties of grasses, are much more efficient. The majority of American industrial woodpulp comes from American and Canadian softwoods (although this is changing; see below). We are also seeing the slow rise of an industry around the pulpy grasses.

      Some wealthy countries replant and/or carefully manage the natural regrowth, most just hack it down leaving large areas of barren hills.

      Not in America. That means that if there is any brazen hacking going on, or urban sprawl, it is balanced by new plantings elsewhere.

      In Australia we plant non-native pine trees for timber resulting in vast areas of land covered with a pine tree monoculture that is largely devoid of any other lifeforms (even the bugs refuse to live in those forests).

      While the pine-trees are indeed bred to be "supertrees", their resistance is aimed at diseases and at early competition (i.e. they are bred to grow a tall canopy as fast as possible in order to beat out woody competition). The bugs don't care -- in fact I will think of your statement next time I'm in my monoculture forest swatting (or running from) the hordes of insects. For that matter, part of my land is wettish river bottomland, completely covered in random wild trees, yet the larger critters and the birds seem to prefer the drier pines.

      Still, you are right that a pine forest's understory and associated critters are relatively sparse... but that is not due to monoculture; it is true of any pine forest, even the much-vaunted old-growth redwoods in California. This is because pine needles naturally acidify the soil, and most other plants can't tolerate that. It is the pine's own natural anticompetitive practice.

      Either way, pines (and other softwoods) are still the fastest way to sequester large amounts of airborn carbon. Your beloved understory vegetation has a fast grow/die/rot cycle which does not permanently sequester any carbon, and which slows down the trees which do. Perhaps you should disentangle your pro-carbon-sequestration argument from your pro-biodiversity argument, because the fastest and most profitable way to sequester airborne carbon is also the least biodiverse. (And if you compromise on "most profitable", then brace yourself for the world's unwillingness to do it.) The reverse is also true: the most biodiverse place in the world is the rainforest, and rainforests have so much rot that they do not consume any net carbon at all. (If you think they do, I'd love to hear an explanation of where they're storing it.)

      Speaking of cost, how much do you think it costs to cut a ton of timber, turn it into chips, ship it from Australia to Japan and then turn it into paper that is shipped all over the planet. I will wager those costs are far more than the cost of an extra garbage run to collect a ton of used paper that is ready for pulping. Having worked at a sawmill many moons ago the waste timber that was chipped on site was collected by a truck and driven ~200miles to a sea port.

      True enough. Domestic timber production is the answer... and indeed was the answer here in America. We had a great pulp market until the feds, under pressure from Environmentalists, banned logging in national forestlands. That drove a lot of the domestic mills out of business, and when they died, the bottom fell out of the pulp market. Presently, I will be paid $0 for the pulpwood take from this year's thinning. Now what effect do you suppose that will have on

      --
      FATMOUSE + YOU = FATMOUSE
    81. Re:Uh... by Cathoderoytube · · Score: 1

      Here's the thing. Carbon absorbs carbon, it's pretty straight forward, there's lots of carbon in the road. Therefore the road absorbs carbon dioxide. I don't know where you got the idea that I was implying that trees sponaniously combusted when they die. All the carbon dioxide the tree was holding is released because it doesn't have the processes to use it any longer.

      The way I look at it, human innovation is going to save the environment, not planting trees and donating money.

      --
      I have nothing compelling to say
    82. Re:Uh... by zacronos · · Score: 3, Informative

      A GROWING forest since a mature one doesn't absorb net carbon.
      I'm sorry, but this is wrong. From this article on genetically engineering trees (emphasis mine):

      The established myth that forests drastically slow or even stop their carbon sequestration as they mature has been found to be false. Research shows that intact mature forest ecosystems have a net carbon absorption not directly related to the growth of the established forest trees. Undergrowth and natural regeneration additionally contribute to carbon absorption. Forest soils also hold carbon, which is lost into the atmosphere when the forest is logged.
    83. Re:Uh... by Ihlosi · · Score: 1
      I don't know where you got the idea that I was implying that trees sponaniously combusted when they die.



      Duh ! Because that's what you would have to do to release all the carbon dioxide that the tree has ever absorbed. It basic chemistry that difficult ?



      All the carbon dioxide the tree was holding is released because it doesn't have the processes to use it any longer.



      News flash: The whole tree is basically made of carbon it absorbed out of the atmosphere. Any dead bit of tree that remains on the ground or in the soil means that carbon dioxide that was once in the atmosphere is no longer there.

    84. Re:Uh... by Ihlosi · · Score: 1
      A GROWING forest since a mature one doesn't absorb net carbon.

      Whoever told you that is either a liar or needs to get a fscking clue.

      What do you think all the stuff (pollen, seed pods, leaves, twigs, etc) trees drop during their lifetime (and after they die) is made of ? Carbon that's been absorbed from the atmosphere. A mature forest builds up soil (= absorbed carbon from the atmosphere). Get those myths out of your head and quickly, please.

    85. Re:Uh... by drinkypoo · · Score: 1

      You're quite simply deluded if you think that clear-cutting is not SOP, because it quite plainly is. The only cases in which it is not is where you have a mixed forest and can't get rights to cut all the trees on it. Otherwise they come in with machines and just knock everything over, then haul it away. They don't even have to cut them down. Actually we have BLM land up north of us here, and they clear-cut portions of that periodically. Then they replant THAT in all one species. We're talking about land that is in theory held for all people, but in reality the corporations are in charge, as always.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    86. Re:Uh... by drinkypoo · · Score: 1

      I think when you look at it closely, you will find that "more" is a more subtle and complex concept than it first appears to be.

      What the lumber and paper industries have in common with many of the CO2-credit companies is that they count a sapling planted and abandoned as a "tree". So if they walk away from it and it dies a year later they still count it as a tree planted.

      So they might even BE planting more trees, but how many of those will last? Baby trees can't usually survive out in the middle of a clear-cut field. They need to be sheltered (normally done by neighboring trees) so that they don't dry out.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    87. Re:Uh... by Blakey+Rat · · Score: 1

      Also, by outlawing the recycling of paper, you'll reduce the number of trees that are still alive,

      Trees aren't oil; they're renewable.

      That's like saying that if a lot of people buy iPods, Apple will have fewer iPods. No! All it means is that Apple will make a lot more iPods to meet the demand.

      Similarly, lumber companies will plant a ton more trees to meet the demand of more paper. Almost all non-third-world lumber companies already operate at a "net tree gain" level, i.e. planting more trees than they cut down each year.

      The only good way to encourage people to do something is to give them money for it. If you pay money for trees, you'll encourage people to plant more trees. It's simple.

    88. Re:Uh... by pseudorand · · Score: 1

      Not yet, but my GMO that does is patent pending, so don't even think of trying to pass your post off as prior art.

    89. Re:Uh... by Anonymous Coward · · Score: 0

      > The idea that only one species of tree is planted by lumber companies is pure propaganda and incredibly naive.

      Of course it is. Would you care to explain to me, then, why during my twenty mile drive through paper mill tree farms each day, I never see anything but white pine trees? Wow! I can't even trust my own eyes to refrain from spreading environmentalist propaganda. I recognize the logic of your statements (planting single species forests is stupid), but that's why god created fertilizers.

      > Are all the boards at a lumber store the same type of wood? Of course not.

      Where I live, yes. They are white pine (except for a few very expensive specialty hardwoods). I'd say probably better than 99% of the lumber sold here is white pine.

    90. Re:Uh... by humungusfungus · · Score: 1

      I'm really surprised that the parent was modded up as insightful.

      Carbon is the 6th most abundant element in the universe. It is all around you and in you (your body is 18% carbon, by mass). It is almost always released when you burn just about anything because it is just about everywhere.

      There are already massive quantities of carbon in the ground already. In an of itself, it is stable and harmless; it only posses a danger (indirectly) when found in high concentrations in the atmosphere (greenhouse gas, global warming, yaddayadda). Putting it back in the ground is like making a landfill made of diamonds,

      Ask yourself: would you rather swallow a diamond or a small chunk of uranium?

      I can't believe anyone would ever be so foolish as to compare carbon to nuclear waste; the two couldn't be further apart.

      --
      No sig.
    91. Re:Uh... by Beardo+the+Bearded · · Score: 2, Funny

      If we don't put our waste underground, how will the ants have any fuel for their cars 100 million years from now?

      That's long term thinking. Won't somebody think of the ant children?

      --

      ---
      ECHELON is a government program to find words like bomb, jihad, plutonium, assassinate, and anarchy.
    92. Re:Uh... by holomorph · · Score: 1

      darn, I guess we'll just have to start cutting the trees down and burying them straight away :P

    93. Re:Uh... by ceoyoyo · · Score: 0

      So where do they put it all? In the soil? Surely that has to stop at some point, otherwise you'd have a forest growing in a giant coal deposit.

      Why would the carbon in the soil be released when the forest was logged? Particularly with modern techniques that don't upset the undergrowth as much and control erosion much better.

      I'm afraid an unreferenced claim from an anti-forestry article at "Global Justice Ecology Project" doesn't really count as evidence.

    94. Re:Uh... by Anonymous Coward · · Score: 0

      Send it to the new Earth-like planet, 20 light-years away !

    95. Re:Uh... by MenTaLguY · · Score: 1

      As long as the tree is growing, isn't its net carbon intake positive? Almost all of the carbon in its makeup comes from the air, same as any other plant...

      --

      DNA just wants to be free...
    96. Re:Uh... by Anonymous Coward · · Score: 0

      People more clued than either of you have noted that the Amazon rainforest, even if it all stays put, has a peak amount of carbon that it's going to be able to absorb before we hit a major point of diminishing returns. Other forests have even faster release because they burn more easily it's a basic part of a these forests' lifecycles (again we're assuming we stop burning the amazon).

    97. Re:Uh... by ceoyoyo · · Score: 1

      The soil in a tropical rain forest is incredibly poor. Why? Because everything's up in the trees. Boreal forests aren't known for their wonderful soil either.

      Are you asserting that a growing forest, actively producing cellulose to build trees doesn't absorb any more net carbon than a mature one, sitting there producing seeds and tree pollen? What do you suppose happens to those twigs, branches and dead trees? They rot maybe? And that does what? Sure some of the carbon goes into the soil, but lots goes up in to the air too. And where does all this carbon that goes down into the soil go? Unless something takes it away, if it's as much as a growing forest produces then old growth forests would have to be sitting on mountains of carbon!

      I guess there's a possibility you might be right. You sure haven't convinced me though. If you want to dispel "myths" then cite some actual reliable research, that actually supports your (very counterintuitive) claim.

    98. Re:Uh... by plate_o_shrimp · · Score: 1

      So the plan is actually to stick this stuff in barrels and bury it?

      Well, it came from underground, so....

      I doubt they'll put it in barrels first though. Just pump it into an underground chamber...
      --
      This sig has exceed its monthly bandwidth allotment.
    99. Re:Uh... by neonfrog · · Score: 2, Insightful

      Depends where you prune the timeline. All that underground carbon started up here, you know. You did call it a fossil fuel, so I think you get that.

      --

      I'm thinking about it, therefore I might be.

    100. Re:Uh... by Cathoderoytube · · Score: 1

      I should point out the chemical makeup of a tree is significantly different than that of asphalt. See, when the asphalt sets, it goes through a process called 'curing' which causes it to absorb carbon dioxide for up to 10 years. Different chemical makeups cause different things. I thought that was fairly basic chemisty.

      --
      I have nothing compelling to say
    101. Re:Uh... by hywel_ap_ieuan · · Score: 1

      The idea that only one species of tree is planted by lumber companies is pure propaganda and incredibly naive.....Lumber companies are farmers.

      I'm resisting the temptation to call this self-refuting and leave it at that.

      Lumber companies behave exactly like farmers when they come to a new area, destroy the existing ecosystem, and replace it with a harvestable monoculture. Just as a hay field is not a prairie, a tree farm is not a forest. This happens often enough even if it's not universal. Now perhaps a given timber outfit will plant pines in one area and poplar in another, but they are not replacing forests with a similar mix any more than any other farmer does. The entire point of a tree farm is to make harvesting more efficient by having an area covered with one species and all individuals the same age.

      It's true that rainforests are lousy places to grow trees. They are an excellent place to harvest trees, especially if you don't care what you leave behind after the harvest.

      There are lumber and paper companies that use and encourage sustainable practices, but there are also such things as clear-cutting old-growth forests and unsustainable (and often illegal) harvesting of tropical hardwoods.

      Slash-and-burn agriculture is (probably) destroying far more tropical rain forest than the timber industry. But that doesn't mean the industry is innocent of all wrongdoing.

    102. Re:Uh... by Alioth · · Score: 1

      Cellulosic ethanol is using the cellulose, not the sucrose, so the availability of sucrose is irrelevant in that particular process.

      http://en.wikipedia.org/wiki/Cellulosic_ethanol

      The fact that there isn't switchgrass beer is irrelevent because the process is entirely different.

    103. Re:Uh... by AK+Marc · · Score: 1

      Modding that post as 5, Informative doesn't make any sense unless it was to illustrate popular misconceptions and propaganda.

      And your lies got you modded up. Lumber companies clear-cut and move on. That's the way they do it. Rain forests are great places to grow trees. Recycled paper is not used only for boxes, but for insulation and a variety of fills. Lumber companies only plant a single species of tree, and do not go out of their way to replace the diversity they destroyed. Lumber companies aren't farmers, they are locusts.

      Disclaimer: I live in the state with the most forests. I own a farm (in a different state).

    104. Re:Uh... by Anonymous Coward · · Score: 0

      In Australia we plant non-native pine trees for timber resulting in vast areas of land covered with a pine tree monoculture that is largely devoid of any other lifeforms (even the bugs refuse to live in those forests).
      This is in sharp contrast to the vast areas of land that is largely devoid of any life forms at all.
    105. Re:Uh... by Dan+Ost · · Score: 1

      My wife prefers diamonds.

      --

      *sigh* back to work...
    106. Re:Uh... by CityZen · · Score: 1

      Aren't we talking about carbon dioxide, not carbon?

      I don't know; it does make me nervous to think about tons of deadly gas (in concentration) being pumped into the ground with the only assurances of safety being that "Oh, nothing bad has happened _yet_".

    107. Re:Uh... by DrVomact · · Score: 1

      Though the poster who suggested outlawing recycling was modded "funny", he was quite right. (Many a truth is spoken in jest--especially when karma is at stake.)

      You create more carbon dioxide emissions by making paper and burying it to get rid of the minute amount of carbon that the tree(s) obtained from its photosynthesis process.


      Where did you get this idea? As far as I know, making paper doesn't involve burning it, so I don't see how you're liberating CO2 during the process. Are you saying that the energy used in making paper results in the release of CO2? Maybe--but it takes energy to make recycled paper, also.


      Trees contain a "minute" amount of carbon? Have you ever made the close acquaintance of either a tree or a chemistry text? Both are composed of cellulose (C6H10O5)...and that amounts to quite a lot of carbon.


      Also, by outlawing the recycling of paper, you'll reduce the number of trees that are still alive, and eventually wipe out all the trees in the world, and thus, contribute MORE to global warming than minimizing its effect on the planet.


      You don't know how paper is made, what's involved in recycling it, what trees are composed of...and you haven't the foggiest notion about what kind of trees are used in making paper. Trees destined for paper are farmed. They are usually rapidly growing trees that reach maturity in about 20 years; after they're cut down, the area is re-seeded so that the process can be repeated. That's the economical way to make paper, and the paper companies have been doing it this way for many years. Each cycle results in a non-negligible quantity of carbon being isolated and (we can only hope) buried, so making paper results in a net reduction of the CO2 "greenhouse gas". Furthermore, paper-making does not result in a net decrease of the number of trees in the world.


      Paper recycling is one of those measures that makes no sense, but it gives ignorant people a good feeling about themselves, so I guess we're going to be stuck with for a long time to come.

      --
      Great men are almost always bad men--Lord Acton's Corollary
    108. Re:Uh... by sumdumass · · Score: 1

      Well, I think that is a big problem. People are blaming all that carbon that did start up here for what they see as a bad event with the weather. So you would have to make the time line somewhere relative to modern everything to keep them happy.

      I'm not sure we could keep them happy. Just as I'm not sure Co2 is the problem as it is being told. But that seems to be another subject and one that is somewhat taboo here too. I don't think it would hurt anything to bury a few billion drums of carbon as some post are insinuating.

    109. Re:Uh... by Curtman · · Score: 2, Interesting

      And the CO2 that they're planning to capture is that generated by the oil and/or electricity production process, not from free air.

      Speaking of electricity generation... Where does Alberta get off burning coal to product electricity with B.C. and Manitoba very close neighbours who produce more hydro electricity than than they can possibly use? That would be a great start if they just bought our excess hydro instead of burning fossil fuels. But they won't do that because coal is probably cheaper for them (at least in the short term). This is why we need Kyoto, to bump the cost of doing business with fossil fuels, and make the more environmentally friendly means of production more attractive.
    110. Re:Uh... by SatanicPuppy · · Score: 1

      If we found some way to suck carbon straight out of the air and into diamonds, we'd have to burn down forests just to keep the rest of the plants from asphixiating.

      --
      ad logicam Claiming a proposition is false because it was presented as the conclusion of a fallacious argument.
    111. Re:Uh... by humungusfungus · · Score: 1

      Carbon dioxide is one part carbon, two parts oxygen, right? It's a natural product of burning just about anything organic.

      So you remove the carbon from the oxygen and stick the carbon back into in the ground where it presumably (as with fossil fuels) came from .
      As I tried to make clear in my original post: a lump of carbon is no more dangerous than diamond (which is carbon). Comparing the dangers of storing carbon to the dangers of storing nuclear waste (or any nuclear material) is completely idiotic.

      And even if we were going to pump carbon dioxide into the ground (no one has proposed any such thing, were it even practically possible) it would still be better than pumping into the atmosphere (which is what you do every time you start your car).

      --
      No sig.
    112. Re:Uh... by Anonymous Coward · · Score: 0

      All this carbon sequestration BS is bunk.

      The oil/natural gas/coal/corn companies want to make money pulling the carbon out of the ground and again by putting it back in the ground. How about we don't do either ! Stop taking the dinosaur carbon out of the ground altogether. Start mandatory use of renewable energy -- solar, wind, ocean power. The economies of scale will come.

      Entrenched interests are destroying the planet and will continue to destroy it (only more slowly) with "carbon sequestration".

      Bunk!

    113. Re:Uh... by jez9999 · · Score: 1

      How about using the sun as a garbage dump?

    114. Re:Uh... by Anonymous Coward · · Score: 0

      [quote]Hardwood is a piss-poor way to generate pulpwood, because hardwood grows so slowly. The softwood pines, and some of the new varieties of grasses, are much more efficient. The majority of American industrial woodpulp comes from American and Canadian softwoods (although this is changing; see below).[/quote]

      You are absolutely right, but so is the original poster - some paper from Asian countries is made from hardwoods. The hardwoods are what is there now and whilst chopping them down to make paper is not at all sustainable it is cheaper than growing softwoods and is available right now as the hardwood is already there. If the intention was for these countries to move to softwoods then they would probably want to clear original forest anyway to plant them. This has happened in North America and Europe too where original mixed forest has been cleared to plant fast growing pine monocultures. Pine monocultures exist too, but at more northerly latitudes. But even a monoculture still provides woodland habitat and is much better than chopping the trees down and leaving the forest barren, and some of the European and North American logging concerns seem to be getting more interested in supporting more wildlife in their forests, which is good.

      [quote]Either way, pines (and other softwoods) are still the fastest way to sequester large amounts of airborn carbon.[/quote]

      One of the interesting suggestions it to use poplar and willow coppicing where rainfall permits and then turn this into charcoal (energy for this being from burning some of the coppice). Charcoal has a long shelf life and thus sequesters carbon, but more than this can be used as a soil conditioner to replace lost organic matter in the grain belts of the world. Most of the carbon will still remain sequestered for several hundred years used in this form. Given that we may need more productive agriculture without more hydrocarbon inputs this might be (if the figures really work out) be a win/win situation provided that there is enough land of the right type available to coppice enough.

      An alternative use for coppice might be to be as root systems and trunks to provide natural defences against flooding, or at least speed of flooding, and then using the coppiced branches as wood pellets for domestic heating and cooking. This might be very good for semi-rural areas that won't necessarily get the required funding for big flood defence projects but probably have more scope for using the wood pellets (e.g. systems to heat animal housing units of various sorts). Also in more rural areas smoke from burning will be less of a pollution issue as the population density is lower.

      Pelletising saw mill waste (unless used for other things) for CHP systems or domestic burning might be useful. It already gets used for things like MDF but it might be that it might provide an alternative to the use of plastics by moulding resin-soaked saw mill waste into useful products. If the products last a long time then it is also sequestration. Who knows, in 20 years maybe you will be able to repair your mobile phone case with a bit of wood glue. This isn't even new technology - the US Army used it in the liners for helmets in WW2 (although in this case it used longer fibres) and isn't much removed from bakelite, although bakelite probably wouldn't make a good mobile phone!

      A use for old paper isn't just recycling it into new paper - another use which provides both sequestration and energy saving is treating it and then using it as insulation. The treatments make it hard to set fire, and then it can be used in attic spaces to provide insulation against cold and heat (unwanted solar gain from roof spaces is a big problem for the thermal efficiency of houses in the southern USA).

      In terms of grasses or similar things you can do worse than use straw for house construction. Whilst using it structurally is a bit controversial using it within a timber frame as insulation is very possible. It's a traditional material in Arizona and can provide sufficien

    115. Re:Uh... by AJWM · · Score: 1

      I think you will find most paper pulp comes from native hardwood forests,

      Maybe in your part of the world. In North America most paper pulp comes from pulpwood (ie pine) forests that are planted/harvested on about a 10-20 year cycle. Most of the paper that, eg, the New York Times is printed on comes from Quebec. (And the Sunday edition probably consumes a small forest.) Since the pines are native, as is the scrub growth on the cleared land, it doesn't disrupt the local ecology much.

      --
      -- Alastair
    116. Re:Uh... by AJWM · · Score: 1

      Aluminum is probably the most cost-effective material to recycle. That basically just needs to be melted (impurities removed, etc). Compared to extracting aluminum from its ore, which is an electrolytic process requiring a lot of energy, melting the stuff is easy.

      --
      -- Alastair
    117. Re:Uh... by zacronos · · Score: 2, Informative
      You know what? I don't know the answers to those questions. But I notice you haven't provided any supporting evidence for your claim, while I at least provided a link -- it may be unreferenced and biased, but it's something, and that beats nothing.

      You can find referenced, peer-reviewed evidence below. However, it gets a little technical, and I honestly find it a little hard to follow since I'm unfamiliar with the terminology and acronyms. If you want anything more thorough than this, you'll have to look for the information yourself.

      Here is the abstract of a 2003 paper (cited 40 times according to Google Scholar) which compares stands of ponderosa pines in Oregon based on their age. One statistic they compare is "net ecosystem productivity":
      • "initiation" stands (9-23 years old): -124 g C m^(-2) yr^(-1) (note that this value is negative -- that's not a typo)
      • "young" stands (56-89 years old): 118 g C m^(-2) yr^(-1)
      • "mature" stands (95-106 years old): 170 g C m^(-2) yr^(-1)
      • "old" stands (190-316 years old): 35 g C m^(-2) yr^(-1)
      I wouldn't know what "net ecosystem productivity" is, except that this other paper summarizes those numbers from the first paper, but uses the terms "carbon uptake" when referring to the young, mature, and old stands, and "carbon release" when referring to the initiation stands. This leads me to conclude that "net ecosystem productivity" refers to the net carbon stored by the ecosystem. Note that the stands labeled "mature" (~100 years old) were doing the most carbon storing, while the initiation stands (the youngest, at 9-23 years old) actually produced more carbon than they stored. The gap in the data for stands in the range of 106-190 years old leaves me wondering where exactly they hit their peak -- it's quite possible the peak is somewhere in the 120-150 years old range, though admittedly I could also easily believe the peak is as young as 80 years, based on those numbers.

      Here is the abstract of a 2001 paper (cited 102 times according to Google Scholar) which has a three-author overlap with the first paper, and which concludes (among other things), that for ponderosa pine stands in Oregon it takes 50-100 years of regrowth to replace the stored carbon which is lost as a result of a clear-cut or "stand-replacing fire". I can't tell you whether that estimate is accurate for "modern" logging techniques or not.

      Care to find similarly-respectable evidence to the contrary? These two papers studied only one particular type of forest in one particular region of the US, so I admit that the results could be idiosyncratic, but until I'm given some reason to think these trees and/or that region is unusual, I'm going to assume something at least vaguely similar holds true in most parts of the world.
    118. Re:Uh... by ceoyoyo · · Score: 1

      Okay, perhaps we're using the word "mature" to refer to different things.

      Taking your numbers, a forest will release some carbon when it's first planted, then absorb lots, then absorb barely any at all when it's in the 'old' category. I suspect if you go beyond that 316 years you'll find the value drops to zero.

      So basically, what you've got is a storehouse. When it gets full, you're done. It just sits there. That's not sustainable. Eventually you'll run out of land to plant new forest on, and all your forest will be in the "old" category, sucking up barely any carbon at all.

      So what do you do, if you actually want to get rid of carbon? You have to put it somewhere for REALLY long term storage. A tree is a nice solid bunch of it that you can go and do something with. Do what? Well, since the extra carbon in the atmosphere is supposed to be from burning fossil fuels, how about we put the carbon wrapped up in the tree back in the same place? How do fossil fuels get produced? By biomass being covered by silt and water, then compressed over millions of years. Thus the sinking it to the bottom of the ocean part.

    119. Re:Uh... by skam240 · · Score: 1

      How is this bad? There's already an enormous amount of buried carbon and the like in our soil having little to no impact on the environment from its location. It's called oil and coal amongst other things. All this is doing is taking the carbon we're digging out of the ground to fuel our power plants and putting it right back there.

      --
      I ignore Anonymous Coward posts. If you want to discuss something, that's awesome. Log in.
    120. Re:Uh... by Anonymous Coward · · Score: 0

      As a nitpick, a 50 ton tree needs a lot more than 9 square meters.

      A better estimate for that sized area would be 1-2 tons.

    121. Re:Uh... by saforrest · · Score: 1

      Depends where you prune the timeline. All that underground carbon started up here, you know. You did call it a fossil fuel, so I think you get that.

      Sure. But I think that the last time most that carbon was on the surface was when it was part of the Carboniferous swamps.

      It might have been "natural" to have those levels of CO2 back then, but it was also natural to have salamanders the size of crocodiles and dragonflies with the wingspan of eagles. It's stretching the definition a little...

    122. Re:Uh... by saforrest · · Score: 2, Funny

      I mean seriously, the entire Idea behind using Biofuels instead of fossil fuels is because the carbon on biofuels are already on the earths surface and there is no net gain. Wouldn't this be the same? placing Co2 back underground were is came from?

      Yeah, that's pretty much the idea. After a century of intense oil extraction at great expense and effort, we end up putting it back. The crowning irony would be if the most efficient manner of underground storage was as oil.

      It would make things a lot easier in the end if we just, you know, stopped pulling it out of the ground already...

    123. Re:Uh... by saforrest · · Score: 1

      That way maybe they'll change their tune before canada ends up with a bunch of monkeys like Bush and Co.

      I think we're a little late for that. A couple of weeks ago, addressing the Afghan prisoner abuse scandal, our prime minister said (I'm paraphrasing) that it was good that the leader of the Opposition was more concerned about Taliban terrorists then our soldiers. The whole thing could have been lifted verbatim from a White House press briefing.

      Yesterday our public safety minister said we shouldn't be concerned about the prisoners because "these people have no compunction about machine-gunning, mowing down little children; they have no compunction about decapitating or hanging elderly women; they have no compunction about the most vicious types of torture you can imagine."

      The transformation is complete; the dialogue is identical. Some random ranter on the Globe and Mail messageboard is fond of referring to the Conservatives as "the Conservative-Republican Annexationist Party". Until recently I thought this was a little overblown.

      At least our business leaders aren't talking about dollarization anymore.

    124. Re:Uh... by tehdaemon · · Score: 2, Informative

      So you remove the carbon from the oxygen....


      This requires way too much energy to do.


      And even if we were going to pump carbon dioxide into the ground (no one has proposed any such thing, ...


      Don't be ignorant. This is precisely what is being proposed. It is even being done in some places.

      T

      --
      Laws are horrible moral guides, moral guides make even worse laws.
    125. Re:Uh... by tehdaemon · · Score: 1
      Oil and gas are liquids and solids. Carbon dioxide is a gas. This fact is the source of all of the legitimate objections to carbon sequestration.

      T

      --
      Laws are horrible moral guides, moral guides make even worse laws.
    126. Re:Uh... by zacronos · · Score: 3, Interesting

      Actually, the first couple sentences of the abstract of the PSU paper I linked previously say, "Old-growth forests are often assumed to exhibit no net carbon assimilation over time periods of several years. This generalization has not been typically supported by the few whole-ecosystem, stand-scale eddy-covariance measurements of carbon dioxide exchange in old-growth forests."

      Again, I don't know where that carbon goes, but research seems to indicate that the carbon-absorption of old-growth forests may never really drop to totally insignificant levels. However, I'll grant that at some point, it would be more efficient to cut the trees down and and plant new ones, taking the short-term hit to CO2 absorption. However, the ideal time to chop down the trees (in terms of ecosystem carbon absorption) is much later than what intuition would suggest based on the growing cycle of the trees -- I would assume "mature" trees are past peak growth (or else we wouldn't use that term to describe them), and yet that is when the ecosystem is doing the most carbon storing. Based on the numbers given earlier, I would estimate those trees should be cut down no earlier than 150 years after planting, maybe closer to 200. I don't have enough data to calculate the actual optimal age, but I don't expect to be too far off.

      I more-or-less agree with you in principal, but there must be better ways to store carbon than growing trees and throwing them in the ocean (where they'll still rot and release carbon unless we do something to seal them up). If tree stands did most of their carbon storing in the first 20-50 years of their life, then it would be a much better idea. But the reality is that it takes a long time (50-100 years, according to one of the linked papers) just to break even from planting new trees, much less to have a significant net carbon store. Maybe there are better trees for doing this, but I still bet we can come up with something (in terms of carbon capture technology) that would be better than those trees.

    127. Re:Uh... by sumdumass · · Score: 1

      As long as we are taling about a forest nd not just the trees, We might as well talk about the life the forest supports. Termites, ants, insects animals and general decomposition can release huge amount of carbon in a ecosystem like a forest. Add to this the Co2 absorption of old growth rain forest and you can see a problem starting to evolve.

      In addition to producing oxygen, Plants also produce Co2. In the daylight, more o2 is produced then Co2 so there is a net gain of o2. You can definably see a measurable gain in the Co2 content of the forest at night time. But more precisely, you can measure this with almost any plant in a greenhouse or even close container. A mature tree (one with a larger mass) would produce more Co2 then a less mature tree. This could be were the differences are coming from.

      I'm not exactly sure how climate models account for this If they even do or how the gases compress when the temperature is colder. We could cut trees down, make lumber and paper out of them, Replant new trees then possibly end up with a net reduction in carbon as long as we didn't burn the products from the trees.

    128. Re:Uh... by Anonymous Coward · · Score: 0

      In Australia we plant non-native pine trees for timber resulting in vast areas of land covered with a pine tree monoculture that is largely devoid of any other lifeforms (even the bugs refuse to live in those forests).

      While the pine-trees are indeed bred to be "supertrees", their resistance is aimed at diseases and at early competition (i.e. they are bred to grow a tall canopy as fast as possible in order to beat out woody competition). The bugs don't care -- in fact I will think of your statement next time I'm in my monoculture forest swatting (or running from) the hordes of insects. For that matter, part of my land is wettish river bottomland, completely covered in random wild trees, yet the larger critters and the birds seem to prefer the drier pines.

      I think part of the point is that the pines are not native, and so the various organisms that typically co-habitate with them are not present in the environment.

      Still, you are right that a pine forest's understory and associated critters are relatively sparse... but that is not due to monoculture; it is true of any pine forest, even the much-vaunted old-growth redwoods in California. This is because pine needles naturally acidify the soil, and most other plants can't tolerate that. It is the pine's own natural anticompetitive practice.

      That's interesting, because eucalyptus trees native to Australia are notorious for creating monocultures the same way in California.
    129. Re:Uh... by fotbr · · Score: 1

      Wow. I didn't realize it'd gotten that bad. Sorry about that, and please realise that not all of us are like the chimp in office.

      I won't leave the US (I do happen to like it here, current administration notwithstanding) but there are a lot of people who, if they followed through on their "if XXXXX wins, I'm moving to Canada" statements, who would be / are / will be VERY disappointed.

    130. Re:Uh... by sumdumass · · Score: 1

      It would make things a lot easier in the end if we just, you know, stopped pulling it out of the ground already...
      You have hundreds of years of using one product and everything is so more efficient with this product then any other one. Replacing the oil in favor of another product is doable but it will take quite a bit longer then we are wanting to give. Suppose hydrogen product by tidal generators is the fuel of the future, It will take an enormous expense and ten to fifty years before we get the distribution worked out efficiently. Cars on the road today have a usable lifespan of over 25 years so it would take a good while on top of that too. This doesn't even begin to touch on the problem of the poor, they usually end up with the 25 year old car and make it last another 10-15 years. It could be possible that we would be dependent on fossil fuels for at least 100 years or more in the automobile industry alone if we made a concerted effort to switch everything right now.

      This doesn't touch on the economics of utilities and electricity either. It wouldn't seem possible to efficiently generate enough hydrogen to store the energy from one coast to supply the rest of the country. And then we have to consider independent countries that are landlocked and couldn't produce the hydrogen in the first place. Nuclear power seems to be an alternative but I doubt this will catch on anytime real soon without a way to make it safe to dispose of as well as not being able to make extremely high powered bombs from. Biofuels in thier current state aren't efficient enough and need more develpoment as well as other alternative. Adding to this, the items mentioned above and we can see some of the difficulties involved.

      Some day, It would be nice to rid ourselves from the oil intake. It would probably be a much better world in more ways then just the environment if we could efficiently manufacture enough usable energy without depending on another country for supplies or raw materials. It is a goal we should be working on but don't expect anything over night. You will just be disappointed. And this isn't to consider that we might find something else wrong with the alternative fuels that make them just as bad if not worse then what we are currently sing now.

      It is a dificult situation. Most people don't give it enough thought.
    131. Re:Uh... by gnuman99 · · Score: 1

      I don't normally call people morons, but you qualify. Do you even know what the Conservative party is proposing?

      Capture and sequestration program that is being proposed is to stick a pipe on top of coal/gas/oil power plants and other large emitters, transport the CO2 in pipelines and then stuff it in the ground. That's the purpose of it and that's how it works. No one is going to emit it and then recapture it which in my opinion is a retarded idea in itself.

      And no, I never voted Conservative or PC in my life. I have no idea *how* you could have even be modded insightful!!

    132. Re:Uh... by WebCowboy · · Score: 1

      So the plan is actually to stick this stuff in barrels and bury it?

      Not exactly like spent nuclear fuel and toxic garbage--CO2 is non-toxic, more stable and non-radioactive. Because CO2 is relatively benign (notwithstanding its effects on the climate) it need not be encased in barrels, lead shielding, concrete, etc. It can be pumped into pre-existing underground voids. Not so far fetched then right?

      I think it might be a tiny bit shortsighted to think we can continue pumping this crap into the atmosphere at ever increasing rates, then capture it and stick it underground

      Even Kyoto's most ardent supporters already argue that there is literally, absolutely ZERO chance Canada can meet Kyoto targets by actually reducing its own physical CO2 emissions alone. Therefore it is unavoidable to look at other ways to move towards those targets:

      * We can participate in "emissions credits" that are in surplus in Russia and other former communist-bloc countries who have credits to spare, since the USSR collapsed right around the conveniently-assigned 1990 base reference date and those economies imploded on their own. This is cheating in my opinion--it does nothing at all to curb emissions.
      * We can also invest in upgrades to carbon-spewing outdated facilities in the developing world and take credit for THOSE emission reductions
      * We can burn more wood, peat-moss, fermented grains, etc (renewable sources containing carbon that hasn't been trapped for millenia--ie. "carbon neutral") in place of oil and gas (non-renewable, releases carbon into the ecosystem that wasn't part of the carbon cycle before)
      * We can capture and sequester the CO2 released by non-carbon-neutral activities

      All Kyoto signatories have looked at all these options in varying degrees because, realistically, NOBODY would be willing to accept the sacrifices involved in the kind of reductions that are REALLY required to meet such targets. As for the last option (subject of the article), the captures CO2 would be sequestered in already-empty voids left behind by oil and gas operations, so in essence we are only putting something back where we found it.

      Now, I'm waiting for all this Kyoto business to get all figured out so we can get back to focusing on REAL pollution (CO2 is NOT a pollutant, regardless of its effects on climate). I see no point in breathing cool air if it burns my throat and makes my eyes water (hear that McGuinty? Put scrubbers on those smokestacks, it's NOT a "dumb idea"--it is shameful that your province runs the most-polluting power plants on the continent!)

    133. Re:Uh... by Anonymous Coward · · Score: 0

      Actually, Canada can't even sell lumber to US because of protective tariffs. We have more trees and paper than anyone, just no one wants it.

    134. Re:Uh... by ceoyoyo · · Score: 1

      I expect an individual tree probably works more or less as intuition would have it, if you add root growth to your intuition (the tree may well keep growing down, and out after it's done growing up). The forest as a whole doesn't, because forests, particularly mixed forests, keep adding mass longer than you'd expect. Fast growing but low mass trees are replaced by slower growing, high mass ones, younger trees fill in the gaps between older ones, and biomass does build up in the soil. I expect you wouldn't want to cut things down too fast because unless you get that biomass in the soil your next generation is going to have a hard time (I bet that's why young forests have a negative absorption rate -- they're feeding off the soil until they get big enough to have reasonable gas exchange areas).

      BUT, forests only act as ongoing singificant carbon absorbers if something happens to the old biomass before it gets a chance to decay. If you get it under a reasonable amount of water and preferably get it covered in silt, it doesn't decay. The bottom of the ocean under a bit of silt is cold and oxygen poor, that's why biomass there turns into coal and oil instead of releasing its carbon back into the atmosphere.

      You may be right, waiting for forests to grow might be too slow to get us out of our current mess, though I'm sure you could find some forests that do a significant part of their carbon storing in a shorter time period. I think forests are much prettier than corn fields, so I hope so. I really doubt any industrial process is going to be anything like as efficient and as nice to look at as a forest though.

      As far as I know there are only two real natural methods of long term carbon sequestration: chemical weathering of rocks and putting biological material where it won't decay but turns into fossil fuels instead. It's hard to imagine how we'd speed up the first one without risking a lot of damage (think REALLY BIG strip mining operations). The second one seems to offer more possibilities.

      Yeah, it's kind of counterintuitive to an environmentalist's way of thinking, but that doesn't mean it's wrong. That's why I like to mention it. Challenge people's preconceptions.

    135. Re:Uh... by ceoyoyo · · Score: 1

      You have to do more than just not burn the products... you have to make sure they don't decompose. Paper chucked in a landfill will decompose (large landfills give off enough methane gas to run power plants). That's why you want to take your trees (and waste paper) and sink it to the bottom of the ocean. It's cold and oxygen poor. The biomass will turn into coal instead of CO2.

    136. Re:Uh... by LunaticTippy · · Score: 1

      Trees eventually rot and sure do burn easily.
      You've clearly never been stranded in wet freezing windy weather with nothing but wet sticks and a mean scoutmaster. Fucker gave me one match and said "good luck."

      That's why now I never go camping without at least a liter of kerosene, plenty of lighters, wax-coated explosive matches, and some bottle-rockets.
      --
      Man, you really need that seminar!
    137. Re:Uh... by saforrest · · Score: 1


      Wow. I didn't realize it'd gotten that bad. Sorry about that, and please realise that not all of us are like the chimp in office.


      Oh, we do. The public consciousness of American politics in Canada is quite high (there is why Tucker Carlson called us "a stalker nation", because we pay so much more attention to the U.S. than we receive) and many up here we pleased to see the results of the fall congressional elections.

      I should say I was being a bit doom-and-gloom in my post: the type of language I talked about was real, but it's nothing new for Harper. This is the guy who in March 2003 as opposition leader came on Fox News to personally apologise for Canada not entering the Iraq War! But he played the centrist card to get elected, so it remains to be seen how the resurrection of this sort of rhetoric. And my mentioning annexationism was over the top.

      On the "if XXXXX happens, I'm moving to Canada" thing: I can't say I'm too sympathetic towards that kind of disappointment by that. Painting Canada as a Socialist Heaven is as false as painting it Socialist Hell (or "Soviet Canuckistan", if you're Pat Buchanan). If people truly knows so little about Canada as to believe either myth, then they deserve to have their bubble burst.

    138. Re:Uh... by pipingguy · · Score: 1

      I live in Oregon. I've seen very fucking huge forests clear cut.

      "Very fucking huge" is a relative description. Why don't you use Google Earth and show us what you're talking about?

    139. Re:Uh... by largesnike · · Score: 1

      The myth of clear-cutting as a lumbering practice is also crazy

      It's no myth in Tasmania. I was there about 10 years ago and saw with my own eyes vast areas of forest totally cleared. The only forest that remained was the 30 metres or so on either side of roads, so that the average motorist doesn't see it.

      In Tasmania, it appears to be very much cheaper to clear-fell old growth hardwoods (and everything else) than maintain plantations. Although now they are planting on the newly available land.

      Again, no myth: it's actually the norm.

      --
      "Laugh while you can a-monkey boy!" - Dr Emilio Lizardo
    140. Re:Uh... by ScrewMaster · · Score: 1

      Personally, I think we should just capture atmospheric carbon, turn it back into coal, and bury it again. Then we can gainfully employ legions of coal miners to dig it up so we can burn it to make electricity again, thus completing the cycle.

      --
      The higher the technology, the sharper that two-edged sword.
    141. Re:Uh... by fotbr · · Score: 1

      Well, I'll admit to not paying much attention to Canadian politics lately -- I've been rather focused on trying to get some local "good 'ole boy club" memebers un-elected.

      I have an admiration for the natural beauty your nation is blessed with, and I look foward to visiting again. I've been trying to talk a few friends into the Great Lake Circle Tour, but there's only one other thats comfortable enough with their riding abilities to make that trip, but he's not sure his bike would survive the trip, so it might have to wait until next summer.

    142. Re:Uh... by wpiman · · Score: 1

      I agree, the jury is still out on global warming by man made CO2 emissions.
      Beside, I can't get an accurate 3 day forecast, now I am supposed to rely on a 50 year one? Get the week right first, then I will listen to your models.

    143. Re:Uh... by DiscoLizard · · Score: 1

      And if the hardwood forests are not being logged for pulp, they're being cut down to allow planting of crops. Either way, the carbon released is more than it would be if the forest was left alone.

      Pulling CO2 out of the air is very easy - plant some trees (simplistic of course - restoring an ecosystem is preferable) and let mother nature do it. In exchange we get a nice area to run around in and an education about how maintaining biodiversity is important to our survival as well as being generally interesting. Pulling it out of the air to bury it in barrels or whatever seems like a slightly more difficult and less rewarding solution. It's a fix to a problem that isn't better than the current solution...

    144. Re:Uh... by rtb61 · · Score: 1
      Logically, if forest do not absorb and deposit carbon on the forest floor, then carbon fossil fuels would not exist in the first place, the existence of carbon fossil fuels is the evidence and the fossil they contain. Of course for oil, it is the conversion of methane hydrates after they have been trapped during the decomposition of pyhtoplankton that have been deposited on sea beds.

      Let's be blunt the last thing we want is B$ corporation charging money to clean up the pollution, they charge as to create in the first place. Producing less carbon is the goal, not throwing dust into the atmosphere, or even building 'terra-'re'-forming' plants after a bunch of greedy polluters manage to un-terraform our planet.

      --
      Chaos - everything, everywhere, everywhen
    145. Re:Uh... by thoughtlover · · Score: 1

      "Trees that grow high into the sky...
      Trees my friends that bear bounties fruits and sustenance for all mankind alike?
      Trees so beautiful they would make a grown man weep in awe."

      Yeah, actually, we used to have those... until the Once-ler came and chopped down the last Truffula Tree. The world's never been the same since...

      --
      No sig for you! Come back one year!
    146. Re:Uh... by ErroneousBee · · Score: 1

      You mean we need to forest over France as well?

      Oh well, if we must.

      --
      **TODO** Steal someone elses sig.
    147. Re:Uh... by Curtman · · Score: 1

      Do you even know what the Conservative party is proposing?

      Yes. They are proposing that we ignore the Kyoto accord even though we are signatories to it, and instead we would rely on technology that doesn't yet exist, and hasn't been proven effective at all.

      No one is going to emit it and then recapture it which in my opinion is a retarded idea in itself.

      Yes they are. Burning fossil fuel emits CO2 among other things. The same byproducts are being produced, but instead we'll "recapture" them stick them underground and hope they stay where we put them.
    148. Re:Uh... by Curtman · · Score: 1

      "We can participate in "emissions credits" ... it does nothing at all to curb emissions."

      Bullshit. If you raise the cost of burning fossil fuels, they become less attractive compared to other means. I think it's disgusting that people have two or three cars per family, drive to work and up to the corner store, etc..

      Double the price of gasoline, and charge industry for their emissions. Economics are the only thing that will change us. Guilt hasn't worked for the last 30 years, and it won't in the next.
    149. Re:Uh... by TapeCutter · · Score: 1

      If you can grow pine trees in the simpson desert then more power to you.

      --
      And did you exchange a walk on part in the war for a lead role in a cage? - Pink Floyd.
    150. Re:Uh... by neonfrog · · Score: 1

      I'm not a big proponent of status quo. Neither is nature. I still drive a hybrid, though.

      --

      I'm thinking about it, therefore I might be.

    151. Re:Uh... by WebCowboy · · Score: 1

      Bullshit. If you raise the cost of burning fossil fuels, they become less attractive compared to other means.

      It raises the cost of burning fossil fuels *FOR US*. It LOWERS the cost for Russians and others who SELL the credits and ENCOURAGES them to continue burning fossil fuels as their economy recovers. As it stands, the emissions credit system used internationally is a scam--it doesn't do enough (nearly NOTHING in fact) to compel those SELLING the credits to use that revenue to clean up their OWN acts. All it is is robbing Peter to pay Paul so Paul can buy more Vodka to drink and keep driving his soot-belching Lada. I don't think that's fair nor is it effective--it just makes different people the problem, like tearing down inner-city slums to make high-rise condos just chases the hookers into the next neighbourhood.

      Double the price of gasoline, and charge industry for their emissions. Economics are the only thing that will change us.

      Such changes would cause widespread poverty. Doubling petroleum prices has a similar impact on the cost of pretty much everything else we buy. Food costs will go up (What do farmers use to power their tractors huh? No hybrid John Deeres out there yet. How about locomotives and trucks for trnsporting such food?). Housing costs will go up even faster than they are now (Again, I don't see any electric bulldozers and cement trucks and such out there). Today, if you did that, it would mess up your life even IF you only rode the bus (which would cost more too) and walked to the corner store to buy your $3 loaf of bread and $8 jug of milk.

      You can't just go in with a big economic club and properly solve the problem--better to use a scalpel to do such surgery, and perhaps a few tasty economic carrots to provide incentive to people to live healthier lifestyles.

      I still maintain that with all this focus on one single "inconvenient truth" that far too many other such truths are being ignored--everything from endangered species, disappearing habitats, he sorry state of much of Kyoto-exempt China's environment...and no, climate change isn't the root of all those problems either--there are thingsto be done on those other fronts that will have an immediate positive effect on the environment, whereas no matter WHAT we do now, reducing CO2 today will have little to no climactic effect within most of our lifetimes. Again, what is the point of taking flawed measures to fix what our climate will be like 100 years from now if, in 100 years, there are no rain forests, no edible fish in the sea, and our grandchildren will only be able to look at pictures of tigers because no real ones will be left alive?

      It is great that Gore et. al and the Kyoto accord has rought the environment to the forefront, but it has done so at the expense of other important environmental issues.

    152. Re:Uh... by chuckymonkey · · Score: 1

      That's why I recycle my paper by feeding it to worms. The worms in my bin eat the kitchen waste and all the paper which I then put into my garden as the best fertilizer you have ever seen. Then all the dead plants at the end of the season go into the bin and come spring time I have a ton of that same good fertilizer. The best part is that it's not chemically made and there really isn't anything in the worm castings that is bad for the environment.

      --
      "Some books contain the machinery required to create and sustain universes."-Tycho
    153. Re:Uh... by Curtman · · Score: 1

      It raises the cost of burning fossil fuels *FOR US*. It LOWERS the cost for Russians and others

      I'm not really all that concerned what Russia does, it's not on my conscience. The time for debate on this is over though. Kyoto is signed and ratified. It's international law. We get all upset when the Americans renege on their treaties, let's not be hypocritical about this. We have committed to reducing emissions by 6% by 2012. That's what we should do.
    154. Re:Uh... by gnuman99 · · Score: 1

      I don't care what the Conservatives are proposing - they are just trying to split the environmental vote and so they can't state that CO2 is "harmless" gas and Global Warming does not exist. I don't think Harper is intelligent enough to comprehend what Global Warming actually is.

      Regardless, the CO2 capture, as in Canada, was proposed under Liberals way back when Chretien was still in. The idea is to scrub CO2 from power plants and other large emitters like smelters (*before* being released into atmosphere!!), transport it in pipelines and then inject it in the ground. Where? Back down the gas wells and other areas with favourable geology. CO2 would be trapped there essentially forever.

      The Slashdot article has *nothing* to do with the current CO2 capture program in Canada. And yes, Canada is the leader in the CO2 capture and sequestration as I described it above. The article talks about scrubing the *atmosphere* of CO2 - IMHO not very realistic.

    155. Re:Uh... by jonadab · · Score: 1

      > Glass? Could you explain why? It's not like we're going to run out of silica any time soon...

      It's not the raw materials, but the process. It is inefficient and expensive. The technology to make glass out of silicate rock or sand has been around since antiquity and has not improved much since then.

      Recycling glass is easy: just melt and reshape. You can reshape ordinary glass tubing over a bunsen burner in a high school chem lab, so you know it's not very hard to achieve. Heat-resistant glass requires a somewhat higher temperature, but it's still quite reasonable. Melting rock (or sand) requires a *MUCH* hotter furnace and therefore expends a much larger amount of energy. Have you ever tried to melt rock or sand over a bunsen burner? There's a reason sand is used to extinguish magnesium fires: it can take the heat. Melting it down to make glass takes a *serious* heat source. Recycling glass saves a LOT of energy.

      Recycling paper actually costs more energy than making it new out of fast-growth trees.

      --
      Cut that out, or I will ship you to Norilsk in a box.
    156. Re:Uh... by jonadab · · Score: 1

      > So, from an economical perspective, glass recycling is "easy". The question would be if it was
      > cheaper to make new or recycle old.

      It's way cheaper to recycle old glass, because you can melt down old glass at a MUCH lower temperature than it takes to make new glass out of sand. It's a matter of heating the furnace to hundreds of degrees instead of thousands of degrees.

      --
      Cut that out, or I will ship you to Norilsk in a box.
    157. Re:Uh... by jonadab · · Score: 1

      Granted, aluminum is very much worth recycling.

      Actually, virtually an traditional metal is cost-effective to recycle, _especially_ if your scrap is pretty well homogenous i.e., all the same kind of metal. (By "traditional metal" here I mean something that is commonly seen in metallic form outside of chem labs, as opposed to periodic-table metals like potassium that spend most of their time in compounds with nonmetallic elements.) There might be exceptions, of course. At first guess I'd posit high-melting-point metals like tungsten might be nearly as expensive to melt down as to refine from ore, but I don't actually know, and it's largely moot anyway unless you know how to collect scrap tungsten in anything resembling quantity.

      Aluminum is more worthwhile to recycle than inexpensive metals like iron, less so (economically, at least) than precious ones like gold and platinum. Copper is presumably more lucrative to recycle than aluminum, as well. Then again, you'd have a hard time getting people to just turn in scrap copper (much less gold or silver) for recycling, because it's *perceived* as valuable; whereas, scrap aluminum mostly is not viewed that way by the general public, who happily toss their used cans in the recycle bin next to the pop machine without expecting to receive anything in return, provided it's convenient.

      Some people do also save up aluminum cans and take them in bulk to the recycle center in exchange for money, but if I try to imagine people at a party asking the host whether they recycle used copper items or just throw them away, I come up blank. It just doesn't seem likely, with copper -- much less silver or gold. Yet that happens all the time with aluminum cans, because many neighborhoods don't have pickup and many people don't want to bother to save it and take it in. The closest I can think of to this with copper is the "penny dish" next to the cash register at some shops, and those generally have to be subsidized by the shop keepers because more people want to take a penny than want to leave one -- and virtually nobody ever leaves more than three pennies at a time in one of those dishes.

      So, if by "most cost-effective to recycle" you mean most cost-effective out of materials that people would otherwise casually throw away on a regular basis, then yeah, aluminum is near the high end of that category. Nobody tosses scrap titanium in the garbage day after day just because the recycle center won't come pick it up. I guess you could call that the difference between "recycling" versus "salvage", or somesuch.

      --
      Cut that out, or I will ship you to Norilsk in a box.
    158. Re:Uh... by bob.appleyard · · Score: 1

      Ta for that.

      --
      How dare you be so modest!! You conceited bastard!!
    159. Re:Uh... by WgT2 · · Score: 1

      I suppose they could bottle it and pump it into the water of drink dispensers at Taco Bell.

    160. Re:Uh... by WgT2 · · Score: 1

      Yeah, they may: but red wood and cypress are both pretty good about avoiding rot (depending on their exposure to water, sun, and extremes of temperature).

      But thanks for reminding me of that fire-retardant feature: it sure is cool.
    161. Re:Uh... by WgT2 · · Score: 1

      Well, you can't say you didn't learn something valuable: now so have I (about what to bring on my next camping trip).

    162. Re:Uh... by AJWM · · Score: 1

      Nice analysis.

      Yeah, I was including collection costs. Clearly copper and the more precious metals are also worth recycling (to the extent that I've seen old mainframe computer gear bought and sold for the scrap value of the gold etc. in the circuit boards), but as you point out, those metals usually aren't casually discarded.

      --
      -- Alastair
    163. Re:Uh... by AndersOSU · · Score: 1

      Yes I understand this. Read your article.
      Step 2 -> Cellulose hydrolysis (cellulolysis), to break down the molecules into sugars.

      It takes energy to go from cellulose to sucrose which isn't free. It is technically feasible, and it may become economically feasible, but (IMO) it will never be the most attractive path from biologicals to fuel because of that extra step.

      The fact that there isn't switchgrass beer (or bread for that matter) is relevant because it speaks to the caloric content of the feedstock. The fewer calories, the less fuel you can make.

  2. New Technology! by Mr.+Flibble · · Score: 3, Funny

    Meanwhile, in a competing lab, scientists have unearthed a competing technology, known in ancient times. These "plants" are rumored to absorb CO2, and unbelivably, some of them, it is rumored, are edible.

    --
    Try to hack my 31337 firewall!
    1. Re:New Technology! by ulairix · · Score: 1

      Further research revealed the captured CO2 was converted into breathable oxygen.

    2. Re:New Technology! by Goldsmith · · Score: 1

      A few years ago, I saw a colloquium in my department about carbon sequesterization which basically said: take all the corn stalks and bury them somewhere.

      For about 300 years, we wouldn't have to worry about that carbon.

      I always assumed that was the entirety of carbon sequesterization. It pains me to know that I once again underestimated the stupidity of my fellow man.

    3. Re:New Technology! by Anonymous Coward · · Score: 1, Interesting

      Why not use algae instead? Drop a little iron into the ocean and you get a megagrowth of algae. Then scoop them up, dry them out, and bury them in a hole someplace cold. The amount of CO2 you could reclaim would be immense.

    4. Re:New Technology! by ceoyoyo · · Score: 1

      Add that one to my solution. Take all the paper used by the world, quit recycling it and instead bundle it up and sink it to the bottom of the ocean. Ditto with the corn stalks. If it's not enough, cut down some forests and toss them down too.

      But save the seeds and replant those forests. You know, like forestry operations in most developed countries already do (Canada has a thriving forestry industry but the forested area in the country has remained the same for the last twenty years).

      Bingo: carbon sequestration. We should be giving the forestry industry carbon credits.

    5. Re:New Technology! by Opportunist · · Score: 1

      Ewww... eating plants, you're sick! Feed them to the real food!

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    6. Re:New Technology! by mrogers · · Score: 1

      Digging huge holes and filling them with corn stalks would be rather energy-intensive. Burning the corn stalks or letting them rot, then capturing the carbon from the air and pumping it underground, is probably a more practical solution.

    7. Re:New Technology! by drix · · Score: 1

      Gee, I dunno. Maybe because things live in the ocean? How would you like it if someone dropped a bunch of iron on your house?

      --

      I think there is a world market for maybe five personal web logs.
    8. Re:New Technology! by Hoi+Polloi · · Score: 1

      Actually they would use a soluable iron compound. Secondly, one of the things holding back plant growth (and the things that eat them) is that ocean water is iron poor. Areas where there are upwellings, such as George's Bank off New England, are more productive because they get nutrients from the ocean bottom mixing in. Tests of this theory have shown that phytoplankton bloom when iron is added to sea water. When those phytoplankton die their bodies sequester the carbon on the ocean floor for millions of years.

      --
      It is by the juice of the coffee bean that thoughts acquire speed, the teeth acquire stains. The stains become a warning
    9. Re:New Technology! by drix · · Score: 1

      My point was, we spent the last couple centuries pumping a bunch of shit into the air and water, and now everyone is shocked, shocked, to find out how much harm we've done. Iron fertilization just sounds like another attempt to remake nature through science, and given our dismal track record in this area, I'm inclined to think we should just let well enough alone.

      --

      I think there is a world market for maybe five personal web logs.
    10. Re:New Technology! by Hoi+Polloi · · Score: 1

      I have to agree with your point in general. If you add iron to the water (basically fertilize it) you could end up with the situation found off of Louisiana where you have dead zones. The algeal blooms create anoxic zones when they die and decompose and consume dissolved oxygen in the process, basically suffocating everything. The blooms are fed by fertilizers in the Mississippi that come from farm runoff.

      I just wanted to point out why they were proposing iron fertilization, not if it was actually a good idea.

      --
      It is by the juice of the coffee bean that thoughts acquire speed, the teeth acquire stains. The stains become a warning
    11. Re: New Technology! by deek · · Score: 1


        I have heard that these "plants" are self-replicating, using the environment to spread their spawn. So this technology has the capability of overrunning the surface of the planet! You would have us wake up, only to discover that we are surrounded by "plants"! It's like something out of a bad sci-fi movie.

        When, oh when, will these scientists ever think about the consequences of their discoveries.

  3. Dry ice by Craig+Ringer · · Score: 1, Interesting

    We have this thing commonly known as "dry ice" ; otherwise as "carbon dioxide ice". They don't mine it, you know.

    It comes from AIR. *gasp*. It's also been around for a very long time.

    1. Re:Dry ice by Richard+McBeef · · Score: 2, Informative

      Dry ice is usually made through chemical reactions that produce CO2.

    2. Re:Dry ice by evanbd · · Score: 4, Informative

      No it doesn't. Dry ice is made from commercial CO2, which comes from fossil fuels. In fact, the manufacture of dry ice releases additional CO2 beyond just what ends up as dry ice. The reason is that air is only a few hundred ppm CO2, which is not normally economical to capture and do anything with. Industrially it often comes as a byproduct of ammonia production -- natural gas, CH4, is converted into hydrogen and CO2; the hydrogen is used in making ammonia.

      See Carbon Dioxide for details.

    3. Re:Dry ice by Anonymous Coward · · Score: 0

      Actually they can mine carbon dioxide! Here, check out wikipedia on this one:
      Carbon Dioxide Production
      In fact, no where on that list do I see "pull it out of thin air". Now I'm no chemist but I'm sure the reason for this is because air is a mixture and they'd have to chemically extract it. Who knows though, maybe they do but the process is very inefficient and this new discovery is a lot more efficient? The only thing you did get right was the fact that dry ice isn't mined which is understandable since it sublimates at roughly -80C. Not many places on earth where dry ice can be found naturally.

    4. Re:Dry ice by MillionthMonkey · · Score: 1

      We have this thing commonly known as "dry ice" ; otherwise as "carbon dioxide ice". They don't mine it, you know.
      It comes from AIR. *gasp*. It's also been around for a very long time.


      They do mine it. Dry ice is prepared industrially by reactions of acids with lime or carbonate minerals. It will condense on cold objects but its concentration is only 380 ppm so nobody makes it by distillation from air.

    5. Re:Dry ice by Peter+Nikolic · · Score: 1

      Yea and maybe if people are that worried about the climate global warming/cooling ect then they could also create all this dry ice and dump it out in space therefore getting rid of it on this planet , Maybe not the shuttle but a big fat pipe supported by a geo stationary satelite (SP)

      --
      Karma :Terrible I seriously like this cus at least i aint affraid of barking Caution i BITE (your a
    6. Re:Dry ice by mdsolar · · Score: 1

      The reason for this is that the concentation of CO2 on the atmosphere is pretty low so you'd need to cool a whole lot of air to get a little dry ice.

      This is what you do when you want dry ice, if you want to use dry ice for sequestration, you might start with air that is already cold and use a natural means to cool it further. The brightness temperature of the antarctic night sky is probably cold enough to do some of this using reflectors. But, storing the dry ice may be a problem since eventually the sublimation rate is going to match the production rate even if it quite buried.

      In discussing this some years ago, Lackner mentioned to me that others had been working on possibly stabilizing glacier based by injection cooling that looks a little like this. So, there may be some aplication, but likely not sequestration.
      --
      Get off carbon: http://mdsolar.blogspot.com/2007/01/slashdot-users -selling-solar.html

    7. Re:Dry ice by Anonymous Coward · · Score: 0

      *gasp*

      The reason you're gasping is apparently that your knowledge of air does not exceed your knowledge of dry ice.

    8. Re:Dry ice by budgenator · · Score: 1

      From what I understand companies that do fractional distalation of air for N2 and O2 have to filter out the water and CO2 crystals in the first stages of the process so it will not clog up the machinery. otherwise if they can economicaly produce commercial CO2 from sodium and calcium carbonates, the resulting lime and soda will greedily absorb CO2 from the atmosphere so a loop process should work. I know when your making biodiesel, you have to be careful to use fresh lye because it absorbs CO2 from the atmosphere.

      --
      Apocalypse Cancelled, Sorry, No Ticket Refunds
    9. Re:Dry ice by Technician · · Score: 2, Insightful

      Dry Ice is a by-product of the air products industry. Air is cooled to condense it. Valuable gasses are fractionaly distilled out such as Oxygen, Argon, etc. CO2 is mostly a byproduct of the process. It is one of the reasons it is relatively cheap in bulk compaired to the other gasses. The bulk of air is Nitrogen. It is cheap enough to be used as a refrigerant in addition to being used for it's chemical properties.

      Argon is a valuable inert gass used in welding and manufacturing. Oxygen is valuable in medical, manufacturing and welding. By comparison CO2 and Nitrogen are surplus gasses left over from the manufacturing process. CO2 and water must be removed ahead of time so the solids do not plug the plumbing. (Helium comes from natural gas. It's too rare in the atmosphere to distill commercialy. It is present in natural gas as a by-product of radioactive decay.)

      http://www.madehow.com/Volume-4/Oxygen.html

      "Most commercial oxygen is produced using a variation of the cryogenic distillation process originally developed in 1895. This process produces oxygen that is 99+% pure. More recently, the more energy-efficient vacuum swing adsorption process has been used for a limited number of applications that do not require oxygen with more than 90-93% purity."

      "Because this process utilizes an extremely cold cryogenic section to separate the air, all impurities that might solidify--such as water vapor, carbon dioxide, and certain heavy hydrocarbons--must first be removed to prevent them from freezing and plugging the cryogenic piping."

      --
      The truth shall set you free!
    10. Re:Dry ice by pipingguy · · Score: 1

      Dry Ice is a by-product of the air products industry. Air is cooled to condense it. Valuable gasses are fractionaly distilled out such as Oxygen, Argon, etc. CO2 is mostly a byproduct of the process.

      No. This post is correct. In my experience (total of about 12 years as a cryo plant designer (oxygen, nitrogen, argon, CO2, hydrogen) NH3 is used as the cooling agent for CO2 liquefaction. What you quoted is largely correct.

  4. How much coal to power this? by SEWilco · · Score: 5, Interesting

    The article does not mention how much carbon needs to be burned to power the device.

    1. Re:How much coal to power this? by Fordiman · · Score: 2, Insightful

      Nor does it mention anything about how it works.

      Blueprints or it's bullshit!

      --
      110100 1101000 1101000 1100110 0 1101111 1101000 1100011 1
    2. Re:How much coal to power this? by Rei · · Score: 1

      That's what annoyed me the most. Such a long article to say almost nothing. :P There are so many different methods of CO2 sequestration under development. To not report at least *which* method they're referring to is journalistic laziness.

      --
      "It felt almost as good as stealing cars from grandma." -- Margaret Thatcher, probably.
    3. Re:How much coal to power this? by cerberusss · · Score: 1

      Nor how much CO2 it takes to produce this CO2 capturing device.

      --
      8 of 13 people found this answer helpful. Did you?
    4. Re:How much coal to power this? by Goalie_Ca · · Score: 1

      It is a portable gas powered device. :D

      --

      ----
      Go canucks, habs, and sens!
    5. Re:How much coal to power this? by physicsnick · · Score: 1

      But if we use nuclear power, we need no CO2 emissions to power it.

      *gasp* An environmental use for nuclear power??

    6. Re:How much coal to power this? by Opportunist · · Score: 4, Funny

      Ohhh... I know, a whole new idea. Make it solar powered!

      Dibs on the patent! Nobody's ever invented anything that uses solar power to split CO2!

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    7. Re:How much coal to power this? by aussie_a · · Score: 1

      None, it uses solar power.

    8. Re:How much coal to power this? by dreamchaser · · Score: 1

      Prior art: photosynthesis.

    9. Re:How much coal to power this? by mrogers · · Score: 3, Informative
      Here's an academic paper by the designers of the system described in the article. Unfortunately the paper's only available to journal subscribers, but someone seems to have published it on Freenet, or you can find a preprint version here. From the paper:

      The minimum energy required to capture CO2 from the air at a partial pressure of 4×10^-4 atm and deliver it at one atmosphere is therefore about 20 kJ/mol or 1.6 GJ/tC (gigajoules per ton carbon). If we add the energy required for compressing the CO2 to the 100 atm pressure required for geological storage (assuming a 50% efficiency for converting primary energy to compressor work) the overall energy requirement for air capture with geologic sequestration is about 4 GJ/tC.

      The 4 GJ/tC minimum may be compared to the carbon-specific energy content of fossil fuels: coal, oil, and natural gas have about 40, 50, and 70 GJ/tC respectively. Thus if the energy for air capture is provided by fossil fuels then the amount of carbon captured from the air can in principle be much larger than the carbon content of the fuel used to capture it. The fuel carbon can, of course, be captured as part of the process rather than being emitted to the air.

    10. Re:How much coal to power this? by Rogerborg · · Score: 1

      I believe it's powered by a renewable source; 100% natural snake oil.

      It's total bullshit, of course. Unless you can capture the CO2 produced by the entire manufacturing chain and the power to run this device and the CO2 used by the lifestyles all of the people involved at all stages, then you're just adding to the problem. Quick-fix mechanical (rather than long term biochemical) methods of fixing CO2 are a Goddamn scam, and the sooner we stop believing (or pretending to believe) in these big, loud, fast solutions, and bite the bullet on serious reductions in the use of fossil fuels, the better.

      --
      If you were blocking sigs, you wouldn't have to read this.
    11. Re:How much coal to power this? by Rogerborg · · Score: 1

      I'd like to see the patent litigation on that one: Omnicorp vs the Invisible Sky Giant.

      --
      If you were blocking sigs, you wouldn't have to read this.
    12. Re:How much coal to power this? by fotbr · · Score: 1

      "The people involved at all stages" is a bullshit argument, since they'd be producing CO2 regardless of whether they're working on this or creating/designing/building something else.

    13. Re:How much coal to power this? by hey! · · Score: 1

      In other words, in principle it is possible for these devices to be net removers of CO2. The amount of coal it takes to remove a ton of carbon emits 0.1 tons of carbon. Thus every ton of carbon sequestered represents 0.91 tons of carbon removed from the atmosphere.

      Every gallon of gasoline produces 8.8 kg of CO2 (http://www.epa.gov/otaq/climate/420f05004.htm#ste p1). We here in the US create 1,180 Tg of CO2 from transportation alone, or roughly a thousand million metric tons annually (1.18 x 10^15 g/year). At 1.98 kg/m^3, that's roughly six hundred billion cubic meters a year (which of course will have to multiplied by 1.1 to account for energy costs).

      That's a lot, although US oil fields alone account for over a hundred years worth of sequestration capacity at the total US rate of CO2 production. Most likely we will run out of fossil fuels before we are close to approaching our sequestration capacity.

      The question I have is whether this could be accomplished economically on a sufficient scale to make a difference. Nor does this help us prepare for the coming decline in world petroleum production, which will favor energy efficient economies with diverse energy supplies.

      If deployment on a large scale could be accomplished economicaly, this technology might be used in conjunction with steps to prepare the US economy for much, much higher petroleum costs, to achieve an actual reduction in US CO2 emissions while sustaining economic growth. Whether this would be enough to have an effect on the rate of global climate change is something we probably can't know for sure, but moves towards energy independence are worth doing in either case.

      --
      Post may contain irony: discontinue use if experiencing mood swings, nausea or elevated blood pressure.
    14. Re:How much coal to power this? by Hoi+Polloi · · Score: 1

      Not ONE bit of info about how it works. Why bother writing it?

      Maybe they could combine the CO2 output with some sort of wind/sun powered device that could split the CO2 into carbon and oxygen. That would certainly take it out of commission (just don't burn the carbon dust).

      --
      It is by the juice of the coffee bean that thoughts acquire speed, the teeth acquire stains. The stains become a warning
    15. Re:How much coal to power this? by Retric · · Score: 1

      carbon-specific energy content of fossil fuels sounds cool but you only get about 40% of that due to inificency's in power production so.

      (40 * .4 - 4) /40 = 0.25 or 25% of energy gain is used or an efficency reduction of 1 /(1-.25) = 33%.
      (50 * .4 - 4) /40 = .2 or 20% of energy gain is used or an efficency reduction of 1 /(1-.2) = 25%.
      (70 * .4 - 4) /40 = .14 or 14% of energy gain is used or an efficency reduction of 1 /(1-.2) = 16%.

    16. Re:How much coal to power this? by Fordiman · · Score: 1

      The amount of power required to split CO2 into carbon and oxygen is kinda ridiculous. I'm pretty certain just wind/solar wouldn't do it.

      --
      110100 1101000 1101000 1100110 0 1101111 1101000 1100011 1
    17. Re:How much coal to power this? by Hoi+Polloi · · Score: 1

      I just tossed the splitting idea off of the top of my head. Yah, lots of energy to split it which makes burning C so useful. So I decided to see if there really was any investigation into this and found this article right off the bat. Looks like it is an idea still in its infancy though.

      --
      It is by the juice of the coffee bean that thoughts acquire speed, the teeth acquire stains. The stains become a warning
    18. Re:How much coal to power this? by budgenator · · Score: 1

      I detect the foul stench of patent trolls here, a dispicable lot, they'd knowingly let the planet be destroyed if they wern't paid a royalty on their IP. Most likely there is little new in anything they put together, and they're just hoping the USTO is lax about prior art and novelty

      --
      Apocalypse Cancelled, Sorry, No Ticket Refunds
    19. Re:How much coal to power this? by burris · · Score: 1

      Serious reductions in the use of fossil fuels is coming, just as soon as we use them all up.

    20. Re:How much coal to power this? by Opportunist · · Score: 1

      Mommy nature didn't file for patents. Her loss.

      Maybe she wanted to avoid all those precious trees mashed into paper to get it under way.

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    21. Re:How much coal to power this? by superlaughtive · · Score: 1

      Please note that those papers are not by the original group responsible for the concept. Klaus Lackner, as credited in the slashdot summary and the GRT information, and all news stories discussing the Branson Prize, wrote such articles about air-capture of carbon dioxide as this and this, and others beforehand.

    22. Re:How much coal to power this? by Rogerborg · · Score: 1

      OK, go ahead and factor them out. Hurrah, you win, on "principle." We still all drown though.

      --
      If you were blocking sigs, you wouldn't have to read this.
    23. Re:How much coal to power this? by fotbr · · Score: 1

      I'm not taking issue with the conclusion -- My opinion is that this is a feel-good device, much the same way as a Prius is a feel-good device that lets people feel like they're doing something for the environment because they have a hybrid, while not actually being very good. I have no studies to back it up, so I'll just say its my opinion.

      At least support your conclusion with logical arguments, not ones based on complete bullshit.

    24. Re:How much coal to power this? by Fordiman · · Score: 2, Informative

      The problem is that the reaction is endothermic by nature. Even by splitting it apart using solar, you're essentially just making a *really* inefficient battery (as most energy producers that use carbon compounds as fuel run at about 25-50% efficiency though, there are those with better returns. Still the best I've seen is DMFCs, which get about 80% efficiency).

      The problem with converting CO2 into Oxygen on an industrial scale has always been one of energy. You need to dump in a LOT, whether by photosynthesis in plants or through electrolysis. Since it's endothermic, catalysts won't help; all a catalyst does is reduce the starting energy for an exothermic reaction, which is great for a fuel cell, because it allows you to control the rate of reaction so that you don't need to actually combust fuel to get it to react, as in an ICE.

      The best bet for carbon sequestration, in my mind, is using something like a large scale scuba scrubber to sequester CO2 from the air, and feed it into greenhouses and tree farms; the plants like it a LOT, and it essentally traps CO2 by bonding it to the plant's materials.

      And, of course, to stop dumping it into the atmosphere.

      Power plants dump a significantly larger percentage of CO2 into the atmosphere than our cars do, on the whole (though smog is icky, car exhaust constitutes a minority slice of the human CO2 production pie). Of course, you can SEE car exhaust; you can smell it. It's very easy for power comanies to make us feel guilty for a problem that, by and large, they're causing by resisting the shift to cleaner energy production technologies.

      In my opinion, we really need to move our coal, oil, natural gas, and nuclear plants to something clean, like liquid thorium flouride reactors (which are also nuclear, but don't produce a significant amount of transuranic compounds - ie: industrially useful products as nonradioactive nucelar waste). Also, I think wind needs to be moved from windmills to helical turbines - they're more efficient and less dangerous than their propeller-based cousins, and you don't need a servo to point them at the wind. Lastly, I think it would probably be wise to cover a few strips (and I mean, like a highway's worth) of desert with solar, once if becomes affordable enough to push such a venture.

      --
      110100 1101000 1101000 1100110 0 1101111 1101000 1100011 1
    25. Re:How much coal to power this? by Rogerborg · · Score: 1

      The people involved in the creation/installation/maintenance of these devices are necessary, i.e. their existence is necessary (consider the case where they are the only people who exist), and so cancelling out their CO2 requirements is also necessary. I've emphasised the important parts of this valid argument to make it easy for you, as I suspect that your parents had the same surname before they conceived you.

      --
      If you were blocking sigs, you wouldn't have to read this.
    26. Re:How much coal to power this? by fotbr · · Score: 1

      Typical -- don't bother to construct a real argument, just restate your same bullshit, and move on to the personal attacks. Here's a free hint for you: Personal attacks do not help you make your case.

      I'll spell it out for you, since you obviously don't get it: The people would be consuming supplies and producing CO2 regardless of wether they're working on this, working on something else, or sitting on their asses playing pii60 all day. That FACT makes your argument that this is bad because it doesn't cancel out everything remotely connected to it a bullshit argument.

      If you didn't notice, we both think this device isn't a good idea. You attempt back it up with bullshit arguments. I just state it is my opinion, and won't prop up my personal opinion with bullshit, since it just stinks up the place.

      I'll give you the last word, because I'm done. I've stated my opinion, labeled it as such for people to take or leave as they desire.

  5. It's a start... by Biff+Stu · · Score: 4, Insightful
    From TFA:

    The air extraction device, in which sorbents capture carbon dioxide molecules from free-flowing air and release those molecules as a pure stream of carbon dioxide for sequestration

    I assume that this is more energy efficient than the usual refrigeration based methods for generating pure CO2. This is a good thing. However, they don't say what they're going to do with the CO2 once they purify it. If you can't answer that question, you haven't solved the sequesteration problem.
    1. Re:It's a start... by Calinous · · Score: 1

      They will sell it. There is a market for CO2 - fire extinguishers, by example, can use impure CO2, even if food/drinks industry needs much purer CO2. Also, one could use compressed CO2 for quick cooling.

    2. Re:It's a start... by interiot · · Score: 4, Informative

      There's a market for 11 billion tons of CO2?? Even if there were a market for that much CO2, the point of carbon capture isn't to use the carbon in a way that will be re-released into the atmosphere, the point is to store it away for as long of a time as possible (millions of years, preferably).

      The very specific problem with burning fossil fuels is that it's liberating carbon dioxide that hasn't been part of the natural carbon cycle for hundreds of millions of years... it hasn't been in the atmosphere or part of plants or anything like that... it's been buried underground. By burning the fossil fuels, humans are introducing that carbon back into the atmosphere at a very rapid rate, and the only way to make sure we don't increase the amount CO2 in the atmosphere is to semi-permanently store as much carbon as we're mining from underground in the form of oil.

    3. Re:It's a start... by tjl2015 · · Score: 1

      Read the article, it says that they want to sequester it. It's actually an ingeniously simple method to solve the carbon dioxide problem. If the technology proves viable, you just set up a bunch of these things next to an oil field. They pump the carbon dioxide down into the wells, forcing out more oil and trapping the carbon dioxide in the process.

      Think about it, if the rocks beneath an oil field can stably hold volatile substances like natural gas in place for millions of years, there's no reason why the same rocks can't hold carbon dioxide. It's almost miraculously simple, stick the carbon dioxide right back in the ground it came from!

      Although, I am skeptical of the total capacity of these oil fields, and they might be prone to leak.

      What I've been wondering is if it's possible to reverse the reaction. Your basic combustion reaction goes like:

      fuel(in carbon-hydrogen-oxygen compounds) +oxygen => C02 + H20.

      Is it possible to reverse this, take the concentrated CO2, add a stream of water, and put it through a series of endothermic chemical reactions to produce a usable fuel, preferably gasoline.

      Now I know this sounds like a glorified perpetual motion machine, so it would obviously require an external power source. You could use anything for this, nuclear, hydro, solar, wind, whatever.

      Does anyone know if this is feasible? Do we have the technology to reverse a combustion reaction? You would definitely need to add energy, the question is HOW MUCH energy?

      If you could figure out how to do that, especially if tied to nuclear or a renewable electricity source, you can forget about hydrogen cars, battery cars, and all the rest. It would be a beautiful system if you could get it to work. No more drilling for oil, no more dependency on volatile countries, and a renewable source of portable power that can be used till the end of time. You take C02 out of the air, make fuel, burn it, and it goes right back into the air. The whole system's completely carbon neutral. Best of all, you don't need to replace a single car that's currently on the road. Run it from a reactor, and you can quit making poor people starve so we can make ethanol.

      Sure, I would like to drive a hydrogen car, but the technology is years and years away. We need to solve this problem yesterday. Mass deployment of hydrogen or electric cars would involve hundreds of billions of dollars in new infrastructure, as well as replacing every single car on the road. Hydrocarbons have many benefits as an energy delivery mechanism. They're stable, portable, and highly energy dense, all the while being extremely easy to extract energy from. The only problems are that they exist in limited quantities, are found primarily in regions with degenerate/hostile governments, and are now known to cause global warming. The only downside that would remain when going to a synthetic fuel would be the smog that engines cause, but I think that could remedied with better filtering technology. If hydrocarbons could be made into a renewable fuel source, there is no reason they could and should not be used indefinitely.

    4. Re:It's a start... by tjl2015 · · Score: 4, Insightful

      Well, guess I should have Googled first.

      Google: "synthesizing hydrocarbons from water and carbon dioxide":
      http://www.google.com/search?hl=en&client=firefox- a&rls=org.mozilla%3Aen-US%3Aofficial&hs=1QI&q=synt hesizing+hydrocarbons+from+water+and+carbon+dioxid e&btnG=Search

      Apparently they've been working on this technology for awhile. I think they were originally planning on using the exhaust gases from a coal plant or something as a source of raw carbon dioxide. But I don't see why you couldn't use this new technology!
      http://www.inl.gov/videos/sc/syntrolysis.pdf
      http://www.kpk.gov.pl/images/i7pr/bb295736b8d250fc 0ccf0a0742b164c1.pdf
      http://nobelprize.org/nobel_prizes/chemistry/artic les/olah/index.html

      I think this could work. Imagine a facility centered around a nuclear reactor. It draws water from a lake/river, uses what energy is needed to power an array of these atmospheric C02 extractors, and combines them to produce usable fuel! This could change everything. At our current level of technology, we don't have a problem with clean energy. If we had the will power, we could turn off all the coal plants, build a bunch of reactors, and remove that component of global warming overnight (relatively speaking). However, we would still need a source of portable power. A facility like this would be an "instant oil field." Any nation on Earth can become its own Saudi Arabia.

      I really hope this CO2 extraction technology proves viable, because if it is, we have on our hands nothing less than the solution to the entire global warming problem.

    5. Re:It's a start... by Opportunist · · Score: 1

      Umm... ya know, you could take the CO2 and split it up into carbon and oxygene. The oxygene could be used for many fun things, like breathing, while the carbon could be used in some creative way that doesn't involve burning it.

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    6. Re:It's a start... by Anonymous Coward · · Score: 0

      "Although, I am skeptical of the total capacity of these oil fields, and they might be prone to leak. "

      This is, indeed, a huge problem. In the final stages of oil recovery additional wells are sunk and the field fractured by various processes to release additional oil. (It releases some additional oil relatively quickly at a reasonable price, although it also renders the remaining oil in place pretty much impossible to get out). With a field with many wells (even when capped) and highly fractured it may be impossible for it to hold carbon dioxide forever. But perhaps forever is not the requirement, just long enough whilst emissions are lowered in other ways such that the natural carbon cycle can then cope with the outgassing rate from the sequestration locations.

      Given that the demand for energy is increasing but supplies are finite and there is an increasing possibility of the levels of production peaking due to geological concerns (for example conventional oil is very likely to reach peak production sometime between now and 2025 and the EROEI of tar sands is not that great) then finding alternatives to fossil fuels is not so much an imperative for the climate so much as one in terms of energy security. The term that Amory coined - negawatts - i.e. energy efficiency (and food efficiency for that matter) is still perhaps the richest vein of energy we have to mine and one that can still deliver continued economic growth (which a debt-financed economy needs to function). In some ways reducing global warming is just a nice fringe benefit.

    7. Re:It's a start... by mrogers · · Score: 2, Informative
      There's a market for 11 billion tons of CO2??

      Ironically, one of the biggest markets for CO2 is oil extraction: you pump CO2 into a dying well to force out the last of the oil. (Air is unsafe for obvious reasons.) Afterwards you leave the CO2 underground in the same chambers that previously held the oil, so you get sequestration for free. From the press release: For example, the CO2 originating from all those vehicles in Bangkok can be captured in an oil field in Alberta, Canada, where it could be used on-site for enhanced oil recovery (EOR) operations or it could be captured in South Africa to feed a growing demand in that country for feed stocks for petrochemical production. If the goal is to sequester a given quantity of CO2 in a specific geological formation, the air capture system could be located at that physical location.

    8. Re:It's a start... by interiot · · Score: 1

      I'm not remotely an expert, but I'm guessing that oxygen isn't valuable enough to go to the effort of putting energy into it to split the oxygen off. If you do everything but the splitting, then it sounds like you're describing the mineral storage method of capture [1] [2].

      I guess it comes down to whether the current method (fractional distillation of air) of producing oxygen uses less energy and requires less extra carbon dioxide to be produced as a side-effect. Without knowing more, I'd guess that just because fractional distillation is what's currently used, and because it doesn't involve splitting chemical bonds, that it uses less energy than splitting CO2, but that's just a guess.

    9. Re:It's a start... by coolmoose25 · · Score: 1

      Here's a circular notion for you... For years we've been unearthing carbon based fuels to burn and power our quest for energy. In the future, maybe we'll find a non-carbon power supply (efficient solar, fusion, etc) and use some of that energy to sequester CO2 in the form of fossil fuels buried underground. Maybe we'll "make" coal and bury it, or make oil and bury it. In fact, a sufficiently advanced society might put all the carbon based fuels they have burned back into the ground... I've sometimes wondered if some really advanced civilization already went through this cycle on Earth... suppose they burned up carbon fuels, invented a non-carbon power supply, and then sequestered the CO2 in the form of coal and oil. Then, being the good citizens they are, they cleaned up the planet and left "nothing but footprints" behind... Then humans come along and start the whole cycle again... Who knows, maybe the Dinosaurs were actually scary smart, and instead of dying and becoming oil, they just made the oil, and then left.

      --
      Brawndo: It's what plants crave!
    10. Re:It's a start... by mdsolar · · Score: 1

      Lackner favors sequestration through mineralization, converting silicates to carbonates. This is exothermic and provides carbon storage time scales of 10^5 years. It closely mimics the geological carbon cycle which we are out pacing with our carbon extraction. I find his giude to CO2 sequestration http://www.sciencemag.org/cgi/content/summary/300/ 5626/1677 to be quite useful.
      --
      Get off carbon http://mdsolar.blogspot.com/2007/01/slashdot-users -selling-solar.html

    11. Re:It's a start... by heinousjay · · Score: 1

      Thank god you signed up here. Slashdot didn't have anywhere near enough crazy already.

      --
      Slashdot - where whining about luck is the new way to make the world you want.
    12. Re:It's a start... by An+Onerous+Coward · · Score: 2, Insightful

      So, what you're proposing is:

      1) Burn oil like mad.

      2) Using nuclear energy, extract the resulting CO2 from the atmosphere.

      3) Using more nuclear energy, synthesize oil out of it.

      3) Burn that oil like mad.

      The problem is, steps 2 and 3 are incredibly inefficient, which means we'd probably be using five times more nuclear energy than if we simply powered all our activities with nuclear power in the first place.

      Without knowing precisely how much energy it takes to sequester a given amount of CO2 in this fashion, you can't really run the numbers. But it's safe to say that, if you hooked a square mile grid of these extractors up to a coal-fired plant, you'd be raising atmospheric CO2 levels dramatically. Lesson: It's far, far better to not burn the coal in the first place. Derived lesson: If we're going to build new nuclear plants, it's more effective to replace current energy usage, rather than cleaning up after previous energy usage.

      To put it another way: Assume that every joule of energy produced by burning fossil fuels commits us to using ten joules of energy to undo those CO2 emissions in the future. Is there any point at all in running these machines before we've completely eliminated fossil fuels from our energy system? It doesn't seem like it.

      --

      You want the truthiness? You can't handle the truthiness!

    13. Re:It's a start... by Anonymous Coward · · Score: 0

      One issue the whole world is now facing is the dwindling supply of fuel for nuclear reactors.

      That limitless energy supply promised by the nuclear industry turns out to be limited after all -- especially in the face of a world that is using energy at rates nobody even imagined would be possible 50 or 60 years ago.

      Too cheap to meter... Yeah, right.

    14. Re:It's a start... by Sancho · · Score: 1

      How will this affect carbon dating, which relies on a ratio involving the amount of carbon in the atmosphere? Beware that law of unintended consequences.

    15. Re:It's a start... by Ihlosi · · Score: 1
      How will this affect carbon dating, which relies on a ratio involving the amount of carbon in the atmosphere?

      Not at all. Carbon dating has nothing to do with the amount of carbon in the atmosphere, but rather with the ratio of certain carbon isotopes.

    16. Re:It's a start... by amper · · Score: 1

      Oddly enough, if the abiotic theory ever proves out, it will mean that all (or at least, a good portion) of that carbon we're liberating was *never* part of the "natural carbon cycle"...

    17. Re:It's a start... by Locklin · · Score: 1

      This doesn't solve any problems:

      1. You are just storing energy. When people burn that fuel, they re-release the carbon. So you basically invented a battery.

      2. Its a bad battery. Something like alcohol or pure hydrogen would be more feasable to produce as a portable energy storage.

      4. Using your "battery" produces polution which causes health hazards such as lung cancer.

      3. Your just using a nuclear reactor to produce energy. If this was as easy as you imply, the world wouldn't have energy production problems, we would just litter the planet with ractors.

      --
      "Knowledge is the only instrument of production that is not subject to diminishing returns" -Journal of Political Econom
    18. Re:It's a start... by Technician · · Score: 1

      I always thought it was a bad idea to take a limited resource such as Oxygen, combine it with Carbon and then remove the product from the natural order. It is an inconvienent truth Oxygen is an element of a finite supply. Why would we want to deplete the Oxygen? Think about it.. CO2 is one carbon and two oxygen. For every carbon we store away, we are storing away 2 Oxygen. I think more effort needs to be made on releasing the Oxygen back to where it belongs or simply burning less carbon in the first place so the natural process can keep up.

      Are we beginning our next crisis?

      --
      The truth shall set you free!
    19. Re:It's a start... by Shotgun · · Score: 1

      Remember how the lake in Africa with tonnes of vegetation rotting in the bottom will periodically bubble up and kill everything in the vicinity.

      What happens when a pocket of CO2 stored at 100atm finds a hole to the surface?

      --
      Aah, change is good. -- Rafiki
      Yeah, but it ain't easy. -- Simba
    20. Re:It's a start... by pipingguy · · Score: 1

      It's called fracing (pronounced as "fracking"). From this page.

    21. Re:It's a start... by mrogers · · Score: 1

      Damn, I was really hoping the process would in some way involve fracing lasers. ;-)

  6. prior art by Anonymous Coward · · Score: 0

    green plants did it first.

    but aside from that... they invented the wet cooling tower... oooooooo

  7. Successful as in... by PaulBu · · Score: 0

    1) It got some Federal money
    2) It got some State money
    3) It got some private money
    4) It actually captured some CO2
    5) It captured more carbon than sending all the waste paper to the landfill rather than recycling it would do?

    Paul B.

    1. Re:Successful as in... by psaunders · · Score: 1

      Perhaps it's just successful as in, seeming reasonably plausible. The first unsuccessful demonstration of CO2 capture was probably achieved by some nerd putting his own spin on that tireless got-yer-nose joke.

      --
      Karma police, arrest this man. He talks in math. He buzzes like a fridge. He's like a detuned radio.
  8. The spice must flow. by Meph_the_Balrog · · Score: 5, Insightful
    FTA:

    Extensive deployment of the GRT air capture system makes it possible to envision an actual reduction of CO2 levels in the atmosphere, perhaps even to pre-industrial levels.

    I find this idea somewhat concerning. All too often the human race is guilty of doing things because they can, before they learn whether or not they should. I'm all for reducing carbon emissions, but in all honesty, what the hell will we break if we start trying to extract too much carbon from the atmosphere.

    Mind you, find a way to quickly and efficiently separate the carbon from the oxygen, install in long range space craft and you suddenly have near limitless air for deep space voyages.
    1. Re:The spice must flow. by gardyloo · · Score: 1

      All too often the human race is guilty of doing things because they can, before they learn whether or not they should. Watched Jurassic Park lately?
    2. Re:The spice must flow. by delt0r · · Score: 1

      All too often the human race is guilty of doing things because they can, before they learn whether or not they should. QFT.

      However this is not as bad as blocking the sun with mirrors or other such really really stupid ideas.

      I think this is nice little though experiment. Say we *prove* beyond doubt (this is probably imposable) that we didn't cause the warming/cooling and that no matter what we do we going into a really warm/cold period. Would we still see it fit to "install" a planet wide airconditioning system?

      You know because the change is natural so we shouldn't change it right? Or is that we just don't really want the/to change in the first place.
      --
      If information wants to be free, why does my internet connection cost so much?
    3. Re:The spice must flow. by Hal_Porter · · Score: 2, Funny

      I find this idea somewhat concerning. All too often the human race is guilty of doing things because they can, before they learn whether or not they should. I'm all for reducing carbon emissions, but in all honesty, what the hell will we break if we start trying to extract too much carbon from the atmosphere.

      I agree! The precautionary principle says that you should change with the natural world unless you know it's safe. Historically, atmospheric CO2 levels have been rising slowly for a hundred years or so. Possibly some of that is caused by humans, but it seems we should stick with the status quo until we have more evidence as to how much, and whether increased CO2 is a good thing, a bad thing or doesn't matter at all.

      It's possible that lowering CO2 suddenly might cause the climate to flip into a new stable state, like a new Ice Age. Since the costs of this would be vast, it's very important not to take any measures which could allow it to happen. If irresponsible Europeans persist in sequestering carbon, the US should increase it's carbon emissions to compensate to ensure that the current trends continue.

      --
      echo -e 'global _start\n _start:\n mov eax, 2\n int 80h\n jmp _start' > a.asm; nasm a.asm -f elf; ld a.o -o a;
    4. Re:The spice must flow. by Anonymous Coward · · Score: 1, Insightful

      The worlds oceans will easily replace the CO2 in the atmosphere. They are the largest buffering solution out there.. C02 like other gases flow in and out of the oceans at a constant rate based on ocean temperature, surface area and PCO2 in solution and PCO2 in the Air. So what does this mean. If you remove ALL the CO2 from the AIR the Oceans will automatically replace almost ALL of it in the process of bringing back the CO2 Air to Buffer exchange rate.

      GB.
      Chemist.

      P.S. to solve the AGW pseudo problem you better plan on removing most of CO2 from the oceans as well.

    5. Re:The spice must flow. by Anonymous Coward · · Score: 0

      If irresponsible Europeans persist in sequestering carbon, the US should increase it's carbon emissions to compensate to ensure that the current trends continue.
      Have you realized that the *current trend* is what is wrong here? It may be a bad idea to extract huge amounts of CO2 from the atmosphere without measuring carefully the consequences, but It IS more irresponsible to continue with the huge CO2 emissions, which is the current trend.
    6. Re:The spice must flow. by Ihlosi · · Score: 1
      what the hell will we break if we start trying to extract too much carbon from the atmosphere.



      I doubt that with out current CO2 release, we can extract "too much" carbon from the atmosphere. It's not rocket science to stop the extraction when the CO2 level drops below a certain threshold.



      However - how the heck are we supposed to get all the energy necessary to capture all the carbon dioxide, without releasing more than we capture ? And wouldn't it make more sense to use all of this energy to replace CO2-emitting energy sources instead ?

    7. Re:The spice must flow. by Anonymous Coward · · Score: 0

      When you're busy bailing the ship, it is no time to wonder if perhaps you're putting a little oil in the harbor.

    8. Re:The spice must flow. by Anonymous Coward · · Score: 0

      Have you realized that the *current trend* is what is wrong here? It may be a bad idea to extract huge amounts of CO2 from the atmosphere without measuring carefully the consequences, but It IS more irresponsible to continue with the huge CO2 emissions, which is the current trend.

      The point is not that we should keep increasing CO2 production, but that starting to remove more than our own waste is equally bad.

      The temperature is slowly rising, and has been doing so ever since the last ice age (that's why the valley outside my home hasn't been full of ice for the last few thousand years). It is likely that given the ability, will have CO2 removal increased to the point where the temperature will start to go down even though it should be going up. And then in a couple of hundred years, when we pass the peak, and the temperature starts dropping towards the next ice age, we will have given it a head start.

      Cleaning up our own waste is fine, but messing with nature is equally bad in either direction.

    9. Re:The spice must flow. by Anonymous Coward · · Score: 0

      However - how the heck are we supposed to get all the energy necessary to capture all the carbon dioxide, without releasing more than we capture ? And wouldn't it make more sense to use all of this energy to replace CO2-emitting energy sources instead ? umm.. you could try using methods that don't release carbon into the atmosphere, like, say.. maybe... JUST MAYBE.. solar, wind energy, water energy(from dams and such), OR if all else fails, you can make humans run in a giant hamster wheel.
      fix the problem they started and complete the whole "fit america" agenda!
    10. Re:The spice must flow. by Kjella · · Score: 1

      what the hell will we break if we start trying to extract too much carbon from the atmosphere.

      Well, since CO2 causes global warming I'd wager *drumroll* global cooling? In any case, getting it down to where it was before we started burning fossil fuels shouldn't have any ill effects, and if that occurs we can probably burn more and extract more.

      --
      Live today, because you never know what tomorrow brings
    11. Re:The spice must flow. by mdsolar · · Score: 1

      We actually know what is a good CO2 concentration: the Holocene level. What we don't know is how far we can push up this level without entering a positive feedback. The current concentration could already be at this level given the permafrost melting that may lead to quite a lot of CO2 release. So, preindustrial CO2 concentrations are known to be safe and the conservative approach would be to control the concentration at that level.
      --
      Get off carbon: http://mdsolar.blogspot.com/2007/01/slashdot-users -selling-solar.html

    12. Re:The spice must flow. by init100 · · Score: 1

      You know because the change is natural so we shouldn't change it right?

      I bet you would also refrain from doing anything if a 10 km meteorite was detected on a certain collision course with the earth? I mean, "it's natural so we shouldn't try to avoid it".

    13. Re:The spice must flow. by ichigo+2.0 · · Score: 1

      Of course we should. The people who say that climate change is the result of human activity are optimists, if there isn't anything we can do to prevent it then a large part of the earth's population will be in for some rough times.

    14. Re:The spice must flow. by init100 · · Score: 1

      And then in a couple of hundred years, when we pass the peak, and the temperature starts dropping towards the next ice age, we will have given it a head start.

      If we come to a situation where a new ice age seems to be forming, why not release some of that sequestered CO2 into the atmosphere to keep the temperature stable? Nothing says that we shouldn't. Just like we could store more CO2 in periods of increasing temperature, to avoid the increase, since it does pose a lot of problems.

      If we could stabilize the global temperature to the current level by varying the amount of CO2 in the atmosphere, I'm all for it.

    15. Re:The spice must flow. by init100 · · Score: 1

      I doubt that with out current CO2 release, we can extract "too much" carbon from the atmosphere.

      Exactly. According to Wikipedia, 24 billion tons of CO2 are emitted every year from the combustion of fossil fuels. If the claims in the article are true, a square of 50x50 km entirely covered with these devices could capture all those 24 billion tons. I can't really believe that that many devices would be constructed, though enough could be put up to put a significant dent in the net emission.

    16. Re:The spice must flow. by delt0r · · Score: 1

      There is little doubt that we are not responsable for *all* the warming. Even the IPCC report says that. The climate will change. We need to change with it. Not fight a nonlinear system we don't yet understand. How do we know we won't make matters even worse?

      But that was my point. We don't want to change. We (Humans) don't want to give up our cars or Jet travel. The folks going on about how the Governemnts of the world should do more are often the ones that are the most resitant to change. But change will come anyway.

      And even if we did understand the weather systems of the earth, it may not be controlable in the way we want.

      Oh if change=rough times then sure, but don't buy the media hype or the AG dribble.

      --
      If information wants to be free, why does my internet connection cost so much?
    17. Re:The spice must flow. by drix · · Score: 1

      I don't follow you. The "hell" we would be unleashing would simply be the climate we had one or two hundred years ago, i.e. fewer floods, droughts, hurricanes, wildfires and other extreme weather events.

      --

      I think there is a world market for maybe five personal web logs.
    18. Re:The spice must flow. by kisak · · Score: 1

      Mind you, find a way to quickly and efficiently separate the carbon from the oxygen, install in long range space craft and you suddenly have near limitless air for deep space voyages.

      I hope I am stating the obvious, but you cannot split CO2 with less energy than you got out when burning carbon (C) for energy in the first place. In other words, if you use carbon based fuel reacting with O2 there is nothing to win in splitting CO2, also in the case of space travel since you would need to bring the O2 with you.

      --

      --- guns don't kill people, people with guns kill people ---

    19. Re:The spice must flow. by Hal_Porter · · Score: 1

      Yeah, but look at it in software terms. You've got one piece of code which is a bit poorly understood but has been running for a long time. Or you can switch to something which seems better theoretically but hasn't been tested.

      The odds are that the next hundred years will be like the last hundred years, i.e. +0.74 (± 0.18) Degrees Celsius. Or you can try something new, to try to reduce CO2 to pre industrial levels, which is risky because no one has tried it, outside of highly questionable computer models. And it would cost a fortune. And the oceans might compensate anyway, as this dude pointed out.

      Seems like a no brainer to stick with the status quo. It's not like we have any choice really, since no one has the kind of control of humanity to influence them to all work together to change the trend, and no one really understands what the long term effects of trying to change it are anyway. If increasing CO2 causes some kind of climate flip, we'll just have to live with the new climate. My guess is that we can extrapolate the last hundred year's trend, which means that we have a few centuries before something really nasty happens. By which time, humans will hopefully have stopped burning fossil fuels and have the kind of science and technology which could actually control the climate. But it's not something you or I or even our children needed to worry too much about.

      --
      echo -e 'global _start\n _start:\n mov eax, 2\n int 80h\n jmp _start' > a.asm; nasm a.asm -f elf; ld a.o -o a;
    20. Re:The spice must flow. by Guuge · · Score: 1

      The climate will change. We need to change with it. Not fight a nonlinear system we don't yet understand. How do we know we won't make matters even worse?

      You have defeated your own argument. How do we know that we're not already making matters even worse? No matter what you suggest we do, we'll still have to deal with a nonlinear system we don't completely understand. The logical thing to do would be to use what knowledge we have to guide policy.

      Oh if change=rough times then sure, but don't buy the media hype or the AG dribble.

      Okay, let's not listen to the media or AG. (They're 'pedestrian', right?) Who are we left with? Science journals are good for some people, but they don't make good introductory material. Various "science authors" are no more reliable than AG. Policymakers and legislators in the government just want to follow the will of the people (or their private agendas). Religious leaders have no authority in this area. Random people on slashdot are full of crap more often than not (and besides, slashdot is part of the media). We could try to think for ourselves, but we have already established that we're incurious people who only think about our cars and jets. Without someone to teach us, how will we ever learn the basic facts about a prominent issue?

    21. Re:The spice must flow. by delt0r · · Score: 1

      How do we know that we're not already making matters even worse? We don't, and thats what I'm trying to say. It is a great idea to *stop* adding large amounts of CO2 into the atmosphere. There are even a whole lot of reasons outside the climate debate. I avoid air travel when I can and use trains. We have energy saver lighting...etc

      But I'm agaist *active* measure to keep the climate status quo, like large solar refletors or sucking out more CO2 than we put in. Simply because we don't understand the system yet. We will in time understand things and then we will be able to make more informed choices.

      Okay, let's not listen to the media or AG. (They're 'pedestrian', right?) Who are we left with? Well I think we should accept that the warming will happen. Less than a foot of ocean rise over a 100 years is not a tidal wave. I think more stuidies on the likly effects and impacts and some forward planing would go a long way. But the "sky is falling, were all gunna die" type of approach mite sell newspapers but its solves nothing. Not to mention that its pretty wrong too.

      But you have a very good point. Alas I can't see any rational science happening in this feild for some time. Its all just too political.
      --
      If information wants to be free, why does my internet connection cost so much?
    22. Re:The spice must flow. by ArsonSmith · · Score: 1

      Yes, Yes we would want to. That is what I do today in my house. the heat out side is natural and I am cooling it anyway.

      --
      Paying taxes to buy civilization is like paying a hooker to buy love.
    23. Re:The spice must flow. by Ernesto+Alvarez · · Score: 1

      But you would have emptied part of the buffer in the process. If you keep removing CO2 from the air, eventually the buffer will be empty (I'm not saying that we want to do that). The point is that by emptying the buffer a little, you should reduce the quantity of CO2 in the atmosphere (making the climate a little colder) and having an extra place to store an excess of CO2 should an accidental release happen (so a second industrial revolution in 1000 years changes the climate from pre-industrial to late 20th century instead of late 20th to venus).

    24. Re:The spice must flow. by Anonymous Coward · · Score: 0

      Buffers in chemistry terms are different then buffers in software terms. A buffer in chemistry is like a battery on the simplest terms. A good buffer always has A hell of a lot more of what you want locked away to replenish what you have taken out of it or put into it. Usually its a high ratio like a 100 to 1 if not more... Hence its a very stable source of what your trying to keep at a constant level.

      <joke>
      Windows could be described as a buffering software solution. No matter how much of its stuff you remove the ram or the hard drive it always has more stuff to fill in the void.
      </joke>

      GB

    25. Re:The spice must flow. by Ernesto+Alvarez · · Score: 1

      I know how a buffer solution works. I've leant about them in high school.
      That does not change the problem, it simply shows it is more difficult than it seems.

      We've added some extra amount of CO2 (x) to the atmosphere. If we want to revert the process we should remove the same amount x. It doesn't matter if the CO2 went into the ocean or into a magic bag.

      The only difference the buffer makes is that you cannot simple pretend that in order to reduce y% you just have to calculate how many molecules that y% represent and take them and expect everything to be ok, because the ocean in this case will replenish them until it reaches an equilibrium. On the other hand, it means that we managed to put more CO2 into the system than it seems just looking at the atmosphere without cooking ourselves in the process.

      Size is not the difference between software and chemistry buffers (I can make a 1:100 buffer), but the equilibrium it has with the environment. As it fills up, the conditions of the outside remain close, but not the same. If we take enough CO2 from the atmosphere, the ocean will replenish it, but not to the original level, because the equilibrium has changed.

      As for your joke: I consider windows (and software in general) more like a gas. It expands to fill all the space available, no matter what size of hard disk you've got.

    26. Re:The spice must flow. by ichigo+2.0 · · Score: 1

      Actually I'm more worried of the non-human population. Humans will deal, whatever the change in the climate is, but if earth gets hotter or colder then the other species will be worse off. If we screwed up the environment then we are responsible for putting it back together. You are right, it isn't even clear that humans are responsible, but what better way to find that out than by removing the CO2 we already have put in the atmosphere? Some people (not you in this case) use the we-don't-know-humans-cause-it card as an excuse not to do anything, but I think it's silly. If our choices are inaction with certain change, and action with uncertain change, then one would think it was obvious which the safer bet is.

  9. May I be the first to say by Tablizer · · Score: 1

    ...this project sucks, literally

  10. Global Chilling? by ThePopeLayton · · Score: 0, Troll

    Watch some Republican in congress is going to pass a bill outlawing this tech because of the possible "Global Chilling by terrorist". (Not only will he be seen as Anti-Terror, but eco-friendly.)

    You gotta love politics.

    1. Re:Global Chilling? by heinousjay · · Score: 1

      I love politics almost as much as I love reading ridiculous slippery slope arguments based on hate.

      --
      Slashdot - where whining about luck is the new way to make the world you want.
  11. Kill the sheep by Colin+Smith · · Score: 1
    --
    Deleted
  12. Re:Requiem for Macintosh by Anonymous Coward · · Score: 0, Funny

    You've never gotten laid have you?

  13. For all you Arrested Development fans out there... by TheVelvetFlamebait · · Score: 1

    You don't really get the Environment, do you?

    --
    You know, there is a difference between trolling and pointing out the flaws in your reasoning. Just saying.
  14. Re: Separating carbon and oxygen by Anonymous Coward · · Score: 0

    CO2 is a very stable molecule. There's a lot of energy required to break it apart. It's probably more efficient to remove CO2 from the air rather than try and split it. That's what we already do using lithium hydroxide. You end up with lithium carbonate and water. As long as the CO2 is removed from the air to provide a concentration gradient in your lungs, you can deal with less O2 (10% or so).

  15. Capture, then split into CO and O? by Anonymous Coward · · Score: 3, Interesting

    http://www.sciencedaily.com/releases/2007/04/07041 8091932.htm

    There's some work going on at UC San Diego to use solar power to convert CO2 into CO (carbon monoxide) and O. Apparently, CO is useful in industrial chemical processes like making plastic. There's also some talk of using it as a fuel.

    1. Re:Capture, then split into CO and O? by Opportunist · · Score: 1

      I dunno if that would really be such an improvement. CO is toxic (displaces O when you inhale it and you die from CO poisoning) while CO2 is mostly inert.

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    2. Re:Capture, then split into CO and O? by Ihlosi · · Score: 1
      I dunno if that would really be such an improvement. CO is toxic (displaces O when you inhale it and you die from CO poisoning) while CO2 is mostly inert.



      Yes it would, because you don't release the CO into the atmosphere but use it (it's an extremely versatile resource that can be used for lots of thing, including synthesizing gasoline).


      Basically, you could be doing "Cheap solar power + CO2 -> O2 + useful CO". It might be more efficient than, say, photovoltaics.

  16. How it Works by mrcaseyj · · Score: 4, Informative

    The article doesn't say how it works. They link to a Discover Magazine article that describes one of their methods.
    http://discovermagazine.com/2005/oct/climate/?sear chterm=heading%20toward%20twice%20the%20CO2

    Liquid sodium hydroxide turns to sodium carbonate as it absorbs CO2. Then you percolate it over solid calcium hydroxide and the calcium captures the carbon. Then you heat the calcium carbonate to 900 deg Celsius to get it to release the CO2.

    They claim to have developed a new sorbent that isn't as nasty as sodium hydroxide, but none of the articles seem to say what it is.

    1. Re:How it Works by mrcaseyj · · Score: 2, Informative

      They say the CO2 can be stored underground till we run out of space after a while. Then they say maybe entire mountain ranges of magnesium silicates can be converted to magnesium carbonates, because over the millenia that's what would happen to them naturally anyway. But Wikipedia says preparing the rock may be expensive. Another suggestion is to put the CO2 in the oceans where at depths below 10,000ft (3000m) the pressure keeps the CO2 liquid, and it's denser than water so it pools on the bottom. The CO2 might also be dissolved in worthless salty underground water deposits. It can be pumped into coal fields that aren't economical where it sticks to the coal and displaces methane which can then be used. It can be pumped into oil and gas fields. It can be dissolved in the ocean at shallower depths like 1000m or so, but it would make the water acidic and some would eventually re-enter the atmosphere. Of course Wikipedia has more http://en.wikipedia.org/wiki/Carbon_capture_and_st orage

    2. Re:How it Works by ockegheim · · Score: 1

      Sodium hydroxide is produced by electrolysis (though if the Arabs could use it for making soap in the 7th century there may be other processes available). Heating something to 900 degrees also takes energy, which would have to be carbon neutral energy for the process not to be pointless. Hopefully the new sorbent uses less energy.

      --
      I’m old enough to remember 16K of memory being described as “whopping”
    3. Re:How it Works by Opportunist · · Score: 1

      Sounds awefully power intense. Even with NaOH replaced.

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    4. Re:How it Works by o'reor · · Score: 1

      > if the Arabs could use it for making soap in the 7th century there may be other processes available Actually, burning dried algae and seaweed produces ashes with a very high concentration of NaOH. If you take a walk to a few places on the northern coast of Brittany, you will find carved rocks which were used as fireplaces to burn the seaweed and collect the ashes.

      --
      In Soviet Russia, our new overlords are belong to all your base.
    5. Re:How it Works by o'reor · · Score: 1
      [Bummer. Bad formatting]

      if the Arabs could use it for making soap in the 7th century there may be other processes available
      Actually, burning dried algae and seaweed produces ashes with a very high concentration of NaOH. If you take a walk to a few places on the northern coast of Brittany (France), you will find carved rocks which were used as fireplaces to burn the seaweed and collect the ashes. The ashes were sold to soap industries in the 19th century.
      --
      In Soviet Russia, our new overlords are belong to all your base.
    6. Re:How it Works by Anonymous Coward · · Score: 0

      And just which fuel is used to heat the calcium carbonate to 900 deg Celsius? And is the sodium hydroxide and calcium hydroxide recycled in this process (as in 'can be used again in the same process')? And what will we do with the CO2? As long as these questions are not answered, I don't know whether this is really a step in the right direction.

    7. Re:How it Works by fenrisulfur · · Score: 1

      900C!!. That is a lot, it reminds me of the Born-Haber method of making ammonia and people are kicking themselves for not getting a better idea

    8. Re:How it Works by init100 · · Score: 1

      And just which fuel is used to heat the calcium carbonate to 900 deg Celsius?

      Umm, the sun perhaps? You have never tried to focus sunlight through a lens onto a piece of wood? The same can be done with parabolic mirrors.

    9. Re:How it Works by kisak · · Score: 1
      --

      --- guns don't kill people, people with guns kill people ---

    10. Re:How it Works by Ungrounded+Lightning · · Score: 1

      Heating something to 900 degrees also takes energy, which would have to be carbon neutral energy for the process not to be pointless.

      However, counter-current heat exchangers can recycle most of the heat. Then once it's running you only have to add the heat of solution/formation to get the CO2 loose, plus makeup heat for the inefficiencies in the heat exchanger and leakage through the insulation.

      (A guy once invented a low-pressure desalinization still that worked on the same principle to recycle the heat of condensation to provide heat of vaporization, in a tower configuration so gravity would provide a pressure differential between the low-pressure region where the distillation took place and the atmospheric-pressure region where the salt water was fed and the fresh water and brine extracted - thus recycyling most of the pumping power as well. You still had to add the heat of solution of salt-in-water, plus inefficiencies. Which he had to show the patent office, which initially rejected his device as a perpetual-motion variant.)

      --
      Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way
  17. Hire the martians! by Eric+Smith · · Score: 1

    They made a nifty machine in the D.F. Jones novel "Collosus and the Crab" (third book of the Collosus trilogy) with which they planned to extract 50% of the O2 from the Earth's atmosphere. If they can do that, they can probably build a CO2 extractor instead. But at what cost?

  18. Don't store it! by glasspanic · · Score: 2, Funny

    They should so like, seperate the carbon and oxygen, turn the carbon into diamonds, and then sell the oxygen at an oxygen bar. They they would make like, infinity million dollars!

  19. This makes no sense by www.sorehands.com · · Score: 1

    It makes no sense to me. It seems as though they promote the use of CO2 extraction as an aleternative to saving energy because they can avoid global warming.

    While this may be true, but it still drains the limited energy supply of the planet.

    This seems useful for closed environments (space stations, moonbase alpha, sea lab, etc), but is it more efficient than current methods? It does not compare to current technology, as this may be only valid for larger scale conversion.

    1. Re:This makes no sense by fabs64 · · Score: 1

      The energy supply on earth is limited now? And here I was thinking we were constantly absorbing energy from a giant furnace.

    2. Re:This makes no sense by shani · · Score: 1

      While this may be true, but it still drains the limited energy supply of the planet.

      There is a lot of useful coal energy left. I admit 150 to 600 years isn't "forever", but if we can harness it without turning the Earth into Venus it might be worthwhile.

    3. Re:This makes no sense by An+Onerous+Coward · · Score: 1

      In order for that to work, you have to assume that you can get more CO2 from the atmosphere with a given unit of energy than gets emitted when you generate the energy to run the extractor. That's pretty unlikely. But even if you could get the extractor to extract efficiently enough that there was some energy left over, it cuts a huge hole in our energy reserves.

      If the extractor can absorb two tons of coal emissions for every ton of coal you burn to power it (which is pretty unlikely, given that coal burning is only 30-40% energy efficient) then a "600 year supply" suddenly becomes a 300 year supply. If you move closer to the break even point (say, having to burn nine tons of coal to remove the emissions from ten tons of coal) then suddenly for every ten tons of coal, nine were burned just to fire the CO2 extractors, and we only have 60 years worth of coal.

      Most likely, though, is the possibility that a coal-fired extractor array is a net CO2 producer, in which case burning CO2 just produces energy debt that will need to be repaid after the coal runs out.

      In short, I really doubt this technology will make our remaining coal reserves into a viable energy source.

      --

      You want the truthiness? You can't handle the truthiness!

    4. Re:This makes no sense by Locklin · · Score: 1

      Yes, but these types of systems brings the cost of using energy closer to its "real cost." For to long energy has been dirt cheap. If companies have to pay for the "cleanup" of their energy use (they already are starting with polution controls/scrubbers), then there will always be more and more incentive to increase energy efficency.

      MBA's know one thing well. profit = revenue - overhead. You make energy more costly, their skin instantly turns grean.

      --
      "Knowledge is the only instrument of production that is not subject to diminishing returns" -Journal of Political Econom
    5. Re:This makes no sense by Anonymous Coward · · Score: 0

      The energy supply on earth is limited now? And here I was thinking we were constantly absorbing energy from a giant furnace.
      While it will be around for a long, long time, the sun is still a non-renewable resource.
  20. Can some provide a useful link? by msevior · · Score: 4, Insightful

    As others have pointed out, this article is almost entirely useless.

    Can someone provide a link to something that answers the obvious questions:

    1. How does it work?

    2. How much energy does it take to extract it's 10 tonnes of CO2 per year?

    3. How does this compare with refrigeration or plants as a means to reduce CO2 concentration?

    4. What is it's likely cost?

    1. Re:Can some provide a useful link? by bakuun · · Score: 3, Informative

      3. How does this compare with refrigeration or plants as a means to reduce CO2 concentration?

      Plants die eventually. And when they do, they release the carbon dioxide again - that is why plants and bio-fuel are said to be carbon-neutral

      Being able to extract carbon dioxide from the air and store it - for instance, in crevices deep in the ground (just like the oil we are so merrily pumping up!), will actually reduce the levels, though.

      However, it would be more efficient and more interesting to apply this technique to power plants. Coal is really cheap, everybody knows that (besides which, there are huge amounts of coal lying around). What if we could actually use this coal in power plants without the environmental cost that carbon dioxide introduces? Simply imagine one of these carbon-dioxide sequestering gadgets at the top of the chimney of the power plant, and you have that. (Well, there would of course not be a need for any chimney. But you get my point, I think.)

      That is the future. (or will hopefully be, anyway - the IPCC recommendations for how to survive global warming relies heavily on carbon sequestering later on.)

      (Granted, as people have pointed out, this requires that you solve ways of doing this storage - for instance underground - securely. Having the gas leak back out again wouldn't be such a big hit once you have some thousands of these facilities.)

    2. Re:Can some provide a useful link? by Ihlosi · · Score: 1
      Plants die eventually. And when they do, they release the carbon dioxide again - that is why plants and bio-fuel are said to be carbon-neutral



      Only if you vaporize/burn each and every tiny bit of the dead plant. In all other cases, some of the carbon will remain in solid form.



      Being able to extract carbon dioxide from the air and store it - for instance, in crevices deep in the ground (just like the oil we are so merrily pumping up!), will actually reduce the levels, though.



      Guess what coal is. Carbon, collected by plants.

    3. Re:Can some provide a useful link? by bakuun · · Score: 1

      Only if you vaporize/burn each and every tiny bit of the dead plant. In all other cases, some of the carbon will remain in solid form.

      They decompose, and the carbon is released into the air again (as carbon dioxide). You are right that a very small part is contained - but it is, really, a very small part.

      Guess what coal is. Carbon, collected by plants. Yes, over millions of years.

      How much coal do you think will be produced that way during our lifetime?

    4. Re:Can some provide a useful link? by cbacba · · Score: 1

      As you stated the article is virtually worthless. It even lists al gore as an esteemed expert on GW which is enough to make any hardcore AGW whacko who's not stoned out of their gourd to gag. If the author is that clueless, he might be even be confused as to whether those things are co2 emmitters or co2 absorbers.

      It evidently works by a reversible chemical reaction - probably with a bit of heat to reverse. The appearance is that it's a giant tall chimney intended to harness 'wind' power or a combo of wind and solar to create flow and then tap off some minor bit for the reversal process. If it isn't that way, it seems likely they could require the energy (if not nuclear powered) that would release more co2 than collected.

      By the looks of them,they could easily cost several millions of dollars appiece to implement. Were they to be built in the quantities that the article estimated needed to be produced, their costs might even exceed the current gnp of the world, making them quite costly to civilization.

      That said, if (and maybe that should be a big giant IF) co2 is a problem that must be dealt with at some point in the future, then capturing and sequestering similar to this is the only effective way to go as attempting to allieviate it at the source in many cases could be far costlier - especially by those acieved by taxing and or restricting co2 usage.

      If you noticed, the article talks about when co2 levels reach the supposed doubling point over preindustrial times. That may be the point where the whackos are wanting to impose draconian rules or possibly where the machine actually begins to become somewhat efficient. That might also be the point where the contribution of co2 to global temperatures may start to exceed the measurement error (not including any systematic error or bias).

      There are probably many unintended consequences of these things being inplemented. If it sucks out all the co2, is it possible that there could become a vegetation dead zone around each tower or a seriously reduced growing zone , perhaps even a mile or half mile in diameter? Would this, in combination to the tower's presence, affect the albedo of the area - and x1,000,000 of them, possible tilt us towards more global warming or perhaps another iceage. What happens if some nutcake like algore gets into power and decides we're returning to preindustrial levels of co2 - implements the effort - and it turns out the vegetation cannot survive the reduced co2 levels in the level it exists now and undergoes a massive die off? And, what if it turns out the massive carbon cycle had just a bit extra lag and continues to suck out higher rates of carbon, again endangering the plants.

      So far, man's attempts to influence his environment for the good have historically brought about far worse negative consequences. For sure, when the situation is not fully known and fully assessed, doing nothing is the best and safest course of action to take even though it requires the strongest fortitude and leadership which are not factors one hardly ever finds in the ruling class.

  21. Outlaw Paper Recycling = Not So Bad by AbsoluteXyro · · Score: 1

    Actually... The process of recycling paper is worse for the environment than simply "harvesting" new paper is. On top of that, creating more demand for new paper creates more demand for... you guessed it, trees! The majority of trees cut down to make paper are replaced by new trees (via reforestation, or tree farming).

    1. Re:Outlaw Paper Recycling = Not So Bad by init100 · · Score: 1

      The process of recycling paper is worse for the environment than simply "harvesting" new paper is.

      I'd like a better explanation than the one you wrote. Wasting paper increases the demand for new trees, yes, but it also releases more CO2 into the atmosphere when the wasted paper is burned in the waste incinerator.

    2. Re:Outlaw Paper Recycling = Not So Bad by AbsoluteXyro · · Score: 1

      Recycling adds more steps. Paper must be collected, cleaned, shredded and treated chemically before it can then be turned into a paper that is generally of lesser quality than the original whence it came. The treatment of paper to be turned into more paper uses more chemical processing than the original paper did, and on top of that it actually costs more to recycle paper than to make new stuff.

      Trees are good. That's hard to dispute. I like trees. Most paper, though, doesn't come from the majestic oaks and redwoods. You won't see clearcutting of virgin timber to make greeting cards. Paper is generally made from pulpwood. Pulp comes from softer wood trees like the pine. These trees grow relatively quickly. Longleaf pines grow quickly and easily enough that they are actually farmed. Land is set aside for the growing of pine trees. These trees grow, are cut down for goods, and then more are grown in their place.

      Waste paper... not all of it is burned in incinerators. In fact, a good deal of waste paper winds up in landfills which, despite their bad rap, actually aren't so bad these days either. A good deal of them produce natural gas, for instance. Any paper that is burned... well... Any carbon and oxygen that is in that paper was captured from the tree the paper was made from. Thus when you burn it, there is neither a net gain or loss of CO2 in the atmosphere.

    3. Re:Outlaw Paper Recycling = Not So Bad by init100 · · Score: 1

      Trees are good. That's hard to dispute. I like trees.

      This is really orthogonal to the question of recycling, assuming the cut down trees are replaced with new saplings.

      Waste paper... not all of it is burned in incinerators.

      We mostly incinerate our trash, and only use landfills for trash that cannot be incinerated.

      A good deal of them produce natural gas, for instance.

      I guess you mean methane or biogas, since natural gas is by definition a fossil fuel (that contains methane). If generated by decomposition of organic matter in a landfill or water treatment plant, it is usually called biogas. Anyway, I hope that this gas is collected, as methane is a much more potent greenhouse gas than carbon dioxide.

      Any carbon and oxygen that is in that paper was captured from the tree the paper was made from. Thus when you burn it, there is neither a net gain or loss of CO2 in the atmosphere.

      I know. It was supposedly implied by the mentioning of the increased demand of trees.

  22. What about the oxygen? by ars · · Score: 2, Insightful

    Something very important that this project and other ideas to sequester CO2 have forgotten: what about the Oxygen?

    If you start sequestering CO2 on a massive scale, it could work to reduce CO2 in the atmosphere - but at the same time you will permanently remove Oxygen from the atmosphere as well!

    Now sure, at 21% there is plenty, but if removing CO2 is the plan, and it's a long term plan, slowly but surely there will be less and less oxygen in the air.

    --
    -Ariel
    1. Re:What about the oxygen? by Anonymous Coward · · Score: 0

      Not only that, but think about all the o2 used to create h20 during the burning of, well... anything.
      Ultimately, we'll have to learn to seperate o2 from h2o as well.

      In the short term it'll work, but it seems like another case of the current generation leaving problems for the next generation to solve.

      At least as a race we wont get bored.

    2. Re:What about the oxygen? by physicsnick · · Score: 3, Informative

      Your post doesn't make any sense. If we start stripping CO2 out of the atmosphere, it will not (immediately) affect the amount of oxygen. They are two entirely different molecules which interact differently with matter, and in this context the fact that CO2 actually contains oxygen nuclei is irrelevant.

      In any case, the atmosphere is 20.946% oxygen and 0.038% carbon dioxide (by volume). Even if we strip all the carbon out, the overall amount of oxygen nuclei in the atmosphere will remain essentially unchanged.

      Obviously removing ALL of the CO2 would be an insanely bad idea; not because we'd be removing oxygen from the atmosphere, but because all the plants would die.

    3. Re:What about the oxygen? by w3woody · · Score: 2, Informative

      If you start sequestering CO2 on a massive scale, it could work to reduce CO2 in the atmosphere - but at the same time you will permanently remove Oxygen from the atmosphere as well!

      CO2 concentrations in the atmosphere is measured in parts per million, while O2 levels are measured in percentage points. The amount of oxygen that may get trapped by such a scheme is minute relative to the total amount of oxygen in the atmosphere.
    4. Re:What about the oxygen? by ars · · Score: 1

      Um - did you forget how the CO2 got there in the first place? You burned carbon with oxygen. Meaning if you remove the CO2, you also remove oxygen.

      And as far as how much CO2 vs oxygen there is, I don't have any actual data, but I have a feeling that the only reason there is so little CO2 is that plants are very good at removing nearly all of it - but they give back the oxygen. If we did that the oxygen is gone.

      Don't look just at current ratios, but rather at the cycling, i.e. how much oxygen is burned (via fire or animals) and then "regenerated" (by plants) per year. I have no solid information, but I am guessing that we cycle nearly all the oxygen in the atmosphere pretty often.

      --
      -Ariel
    5. Re:What about the oxygen? by Opportunist · · Score: 1

      Well, the amount of CO2 in the atmosphere is rather small (2%? something like that), and I doubt they could get close to removing that amount. My guess is that the shift would be in the second digit behind the decimal.

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    6. Re:What about the oxygen? by stud9920 · · Score: 1

      Well, the amount of CO2 in the atmosphere is rather small (2%? something like that)
      2% would kill you. More like 0.038%...
    7. Re:What about the oxygen? by heinousjay · · Score: 1

      So you raise an alarm based on nothing more than a feeling? Do you somehow feel that being a chicken little helps matters, or are you just convinced of your own omniscience?

      --
      Slashdot - where whining about luck is the new way to make the world you want.
    8. Re:What about the oxygen? by physicsnick · · Score: 1

      Um - did you forget how the CO2 got there in the first place? You burned carbon with oxygen. Meaning if you remove the CO2, you also remove oxygen. As I said, this fact is irrelevant. The mass of the atmosphere is five million billion tons, which means there are more than a million billion tons of oxygen in the atmosphere. I don't know for sure, but I'd be willing to bet that aerobic life doesn't use anywhere near this amount of oxygen. Even if we eradicated plants and sunk all the CO2 we breathe instead of releasing the oxygen, we probably wouldn't have any appreciable impact on the oxygen content of the atmosphere for millions of years.
    9. Re:What about the oxygen? by ars · · Score: 1

      You are right, I should have checked the numbers first.

      Seems that total biomass growth (of plants) per year is about 170 billion tons. And animals are certainly less then that. So I guess even without non-food producing plants, we could go quite a while with the oxygen we have left.

      With numbers like these it amazes me that humans can make the slightest dent.

      --
      -Ariel
    10. Re:What about the oxygen? by physicsnick · · Score: 1

      With numbers like these it amazes me that humans can make the slightest dent. That's why the whole global warming debate exists. Some scientists think we can't, simply because it's just too damn big.
    11. Re:What about the oxygen? by vidarh · · Score: 1
      Um - did you forget how the CO2 got there in the first place? You burned carbon with oxygen. Meaning if you remove the CO2, you also remove oxygen.

      No, you "removed" the (usable, free) oxygen the moment you burned something where oxygen was part of the reaction.

      Subsequently removing the CO2 makes no difference to that.

    12. Re:What about the oxygen? by ars · · Score: 1
      I've retracted my issue with losing oxygen, but I still want to reply to what you wrote.

      Subsequently removing the CO2 makes no difference to that.

      Not correct, because if you leave the CO2 there, a plant can use it and return the oxygen to you. If you sequester the CO2 that oxygen is not coming back.

      However I have since discovered that there is a LOT of oxygen out there, so in practice it doesn't actually matter. (Far more then I ever imagined - I always assumed there was approximately as much as is cycled per year, turns out there is something like 1 million times as much, which just boggles my mind.)
      --
      -Ariel
    13. Re:What about the oxygen? by Woek · · Score: 1

      Mod parent up, this is exactly what I was thinking! The carbon was stored for millions of years in fossile fuels, not the oxygen. What we really need is a way to separate the oxygen from the carbon dioxide, and store the carbon. The energy we use for that process should of course not produce any CO2. This way, we back-substitute a long history of CO2 producing energy conversion methods (fossile fuels) into clean energy usage...

    14. Re:What about the oxygen? by ars · · Score: 1
      I've retracted my issue with losing oxygen, but I still want to reply to what you wrote.

      Subsequently removing the CO2 makes no difference to that.


      Not correct, because if you leave the CO2 there, a plant can use it and return the oxygen to you. If you sequester the CO2 that oxygen is not coming back.

      However I have since discovered that there is a LOT of oxygen out there, so in practice it doesn't actually matter. (Far more then I ever imagined - I always assumed there was approximately as much as is cycled per year, turns out there is something like 1 million times as much, which just boggles my mind.)
      --
      -Ariel
    15. Re:What about the oxygen? by epine · · Score: 1


      This is key to understanding the global warming scenario. We are changing the atmosphere by adding roughly one part in 10,000 of a relatively inert gas that serves as a vital feed stock to all plant life on the planet.

      And then we go around making this out to be a giant calamity because the earth is thermally balanced on a knife edge where 1 part in 10,000 change in atmospheric composition can potentially melt the ice caps and flood some large percentage of coastal land masses (which would then become new habitat for the fishes we've been trying to wipe out).

      In all likelihood, if we had any clue in how to go about it, the thermal balance could be tipped back the other direction by manipulating global cloud cover by some fraction of a percent, or some other minor change in global albedo which is well within human engineering capability.

      However, the precautionary principle reads: "if you screw up, at any cost, stuff the genie back into the bottle" completely ignoring that the enterprise of stuffing the genie back into the bottle could have equally severe effects as the screw-up you are trying to reverse.

      The good thing about the earth's precarious thermal balance is that there is almost certainly any number of interventions that could potentially reset the balance point. Whether we can gain control over any of these interventions remains to be seen. Probably not if we spend the next thirty years trying to sock the carbon back under the carpet.

      Maybe this is a case where we should confront the risk directly and make the best of it. That's how life functions on this planet, as it always has. As mammals, we're very proud of our ability to regulate our body temperatures. If the earth's thermal balance is so precarious, and we plan to live here for any significant length of time, we're going to need to come to terms with the fact that the earth itself also requires active regulation.

      Is anyone else puzzled that the climate scientists have complete faith in the climate models that predict the warming effect (granted there is no great reason to suspect otherwise), but not an iota enough faith in the models to confirm that any proposed human intervention in, say, global cloud cover, would reverse this effect?

    16. Re:What about the oxygen? by Ihlosi · · Score: 2, Insightful
      We are changing the atmosphere by adding roughly one part in 10,000 of a relatively inert gas that serves as a vital feed stock to all plant life on the planet.



      We are changing the atmosphere by raising the concentration of the second most important greenhouse gas by 30%. That's what you were trying to say, right ?

    17. Re:What about the oxygen? by vidarh · · Score: 1

      That plants can use it, doesn't mean it will - especially when the CO2 levels have massively increased. But if we're going down that route, then taking the CO2 out of the atmosphere makes no difference either, as it can be mixed into various compounds that will eventually decompose or get burned or whatever and release oxygen again. It's not like this takes CO2 permanently out of use - in fact, one of the main problems with projects such as these have been that we don't know any really good ways of securely storing CO2 for long enough periods to avoid it from getting back into the atmosphere.

    18. Re:What about the oxygen? by Kjella · · Score: 1

      This is key to understanding the global warming scenario. We are changing the atmosphere by adding roughly one part in 10,000 of a relatively inert gas that serves as a vital feed stock to all plant life on the planet.

      It might be chemically inert, but if you map CO2 levels and temperature it's anyting but. For the climate it's every bit as disruptive as a neural toxin is to a human. Would you drink water that contains one part in 10,000 neural toxin? If so, you'll do it only once. However since we got one planet and 8 billion of you, I'd rather we don't do that to earth.

      --
      Live today, because you never know what tomorrow brings
    19. Re:What about the oxygen? by init100 · · Score: 1

      Far more then I ever imagined - I always assumed there was approximately as much as is cycled per year, turns out there is something like 1 million times as much, which just boggles my mind.

      Try calculating the surface area of the earth, that's a start. Then you approximate how thick the atmosphere would be if it would have a constant density. Then you multiply the surface area of the earth with the thickness of the atmosphere, and you get the total volume. The density of air is about 1.3 kg/m^3, so now you have an approximation of the the mass.

    20. Re:What about the oxygen? by init100 · · Score: 1

      With numbers like these it amazes me that humans can make the slightest dent.

      The amount of freons put into the atmosphere were far smaller than the amount of CO2 emitted, but they still had a significant impact on the ozone layer. So humans can certainly make a dent, even with comparably small quantities.

    21. Re:What about the oxygen? by init100 · · Score: 1

      I don't have any actual data, but I have a feeling that the only reason there is so little CO2 is that plants are very good at removing nearly all of it

      Don't forget that the oceans act like a buffer solution. They absorb a significant amount of the CO2 released, so the numbers of atmospheric CO2 that are shown in statistics do not account for all CO2 being released by human activities. It is estimated that as much as a third of all CO2 goes into the oceans, with unknown consequences for marine lifeforms.

    22. Re:What about the oxygen? by An+Onerous+Coward · · Score: 1

      No biggie.

      CO2 is at about 380PPM right now. O2 is at about 21000PPM. We'd have to burn quite a lot more coal than we have to make a noticeable difference.

      --

      You want the truthiness? You can't handle the truthiness!

    23. Re:What about the oxygen? by Anonymous Coward · · Score: 0

      You forget that once the hydrocarbon fuel is burned (i.e. oxidized) to make CO2, the oxygen is already gone. As CO2, it isn't oxygen. You can't breathe it and have it supply the oxygen your body needs. It just goes in and back out again. It is, for all practical purposes, as inert as nitrogen. So if you are able to survive with all the CO2 in the air, you will be able to survive without it as well.

    24. Re:What about the oxygen? by Ihlosi · · Score: 1
      It just goes in and back out again. It is, for all practical purposes, as inert as nitrogen.



      Whoever told you that is either a liar or has no fricking clue. CO2 plays a crucial role in regulating blood acidity and having either too much or too little in your blood can have serious consequences up to and including death. In order to keep the CO2 level in your blood in the acceptable range, your body requires a certain concentration gradient in the lungs so it can get rid of the excess. CO2 concentrations of more than 8% in the inspired air are fatal within minutes. I'd hardly call that "inert as nitrogen".

    25. Re:What about the oxygen? by SatanicPuppy · · Score: 1

      Yea, but when you say it, it sounds like a bad thing. ;)

      --
      ad logicam Claiming a proposition is false because it was presented as the conclusion of a fallacious argument.
    26. Re:What about the oxygen? by Maximum+Prophet · · Score: 1

      Is anyone else puzzled that the climate scientists have complete faith in the climate models that predict the warming effect (granted there is no great reason to suspect otherwise), but not an iota enough faith in the models to confirm that any proposed human intervention in, say, global cloud cover, would reverse this effect?
      "First, do no harm", attributed to Hippocrates, is one of the guiding priciples of medicine. Thus, it's always ok to tell your patient to stop smoking, and eat less salt, but think twice before prescribing a medicine that might cause more harm than good. Stopping smoking and lowering salt intake might trigger depression and send your patient over the edge, but they are far less invasive treatments than just about anything else. Even exercise has to be properly evaluated, and could cause some patients harm.

      Telling the world to stop polluting just seems like a good thing. Actively intervening in the weather is much more tricky.
      --
      All ideas^H^H^H^H^Hprocesses in this post are Patent Pending. (as well as the process of patenting all postings)
  23. My friend by Centurix · · Score: 1

    The sup tag wants in on the action.

    --
    Task Mangler
  24. Submarines... by Nefarious+Wheel · · Score: 1
    ...scrub CO2 from the air, don't they?

    Doesn't that class as prior art?

    Isn't this just a re-application of technique known since at least WWII?

    --
    Do not mock my vision of impractical footwear
    1. Re:Submarines... by Anonymous Coward · · Score: 0

      The trick is to do it efficiently - they claim to have invented a new sorbent that requires less energy than NaOH.

  25. Mod GP up by physicsnick · · Score: 2, Insightful

    Yes, but the paper companies only plant single species fast growing trees. Exactly, and that's what goes into paper. We're not cutting down the rain forests. Something like 80% of the pulp that goes into paper comes from tree farms. By recycling paper, you're ensuring that less trees get planted. If you want more trees, waste more paper.

    It's not hard to understand. Say five of us are living in a closed environment (i.e. earth). All five of us want to eat potatoes. Okay, so we'll plant a five foot wide garden. What if ten of us want potatoes? We'll planet a ten foot wide garden. What if ten of us want to eat twice as many potatoes? We'll plant a twenty foot wide garden.

    Now say five of us want to use paper. We'll plant five trees. What if ten of us want paper? We'll plant ten trees. What if we want twice as much paper, even if we're just throwing half away? We'll plant twenty trees. What if we recycle half that paper? Oh, now we don't need twenty trees anymore; we'll only plant ten.

    I'm not saying recycling is bad, but the allegation that we're chopping down the rain forests is just plain wrong; it's sensationalism. We've been planting tree farms for over fifty years, and that's what we use today to make paper. That's why the amount of trees in North America has been steadily growing over the past hundred years. There are more trees today than there has ever been, and the simple reason is because we use a lot of paper.
    1. Re:Mod GP up by rm999 · · Score: 1

      From http://encarta.msn.com/encnet/refpages/RefArticle. aspx?refid=1741500821&pn=14
      "About half of the nation's lumber and all of its fir plywood come from the forests of the Pacific states, an area dominated by softwoods. In addition to the Douglas fir forests in Washington and Oregon, this area includes the famous California redwoods and the Sitka spruce along the coast of Alaska."

      Far more wood is used for lumber than for paper, so I think that is more relevant to the discussion. And this lumber comes from forests with varied and interesting ecosystems. I'm not saying we shouldn't use trees at all, but we should keep in mind that we really do affect the environment when we do so. These pacific forests are huge carbon sinks, and regrowing them to their original state isn't so easy.

    2. Re:Mod GP up by bigmammoth · · Score: 3, Insightful

      We're not cutting down the rain forests.
      right we are burning them, for bigMacs ...

      (and the process of modernization and industrialization of previously subsistence populations into a global economic framework. Basically a lot of people became really poor and desperate to make money once neo-liberal policies forced the integration of local economies into the global market. Survival instincts quickly take over and once the race to the bottom takes full swing. Who can make deals with corrupt officials the fastest and stake a claim to land & burn the most rain frost possible, grow your net worth, integrate indigenous populations into a profitable business. Have them work for you instead of for themselves in a system outside of global capitalism.

      Ofcourse even the boss won't make shit compared to the corporate execs, pushing the deals, pushing the neo-liberal reforms, and "new" economic models of production... but that is the beauty of capitalism makes selling out/buying in much more attractive than the actual participation.

      For the majority at the bottom, raising beef simply becomes much more particle when local means of substance are debased via privatization of previously subsistence resources such as land, watter and the flooding of the local food markets with foreign subsidized imports eliminating diversity in local economies and pushing people into the global market where burning Rainforst is simply the best they can offer.

      And what to do... We live in a culture where the aesthetics of consumption is hole-heartily disconnected from the means of production. Consuming the bigMac brand and animal caucus is completely disconnected from torching the Rainfroest and watching the last family of a particular species of some fury creature in a failed attempt to escape a fiery inferno.

      But I imagine most people understand from since childhood when they first see a picture of earth from outer space at night and bother to ask what are all those lights doing in the Rainforest Mommy? That's the rain forest burning for progress, economic growth and global market integration honey, now finish your bigMac or you won't get a frosty (or whatever the fuck they call their ice cream now) :P

    3. Re:Mod GP up by MadMidnightBomber · · Score: 1

      I'm not saying recycling is bad, but the allegation that we're chopping down the rain forests is just plain wrong; it's sensationalism.

      (Well, not for paper - it's being cut down for agriculture and timber.)

      There are more trees today than there has ever been, and the simple reason is because we use a lot of paper.

      Not 'ever', just in recent history. Lots of places were forested before humans cut/burnt them down, so there are less trees now than there were in e.g. 10,000 BC.

      --
      "It doesn't cost enough, and it makes too much sense."
    4. Re:Mod GP up by poopdeville · · Score: 1

      The rainforests being chopped down isn't sensationalism. They aren't being chopped down for paper, but they're being chopped down to create new grasslands for cattle and for planting cash crops. This is very old news.

      --
      After all, I am strangely colored.
    5. Re:Mod GP up by DrSkwid · · Score: 1

      > There are more trees today than there has ever been

      I think you should research that statement a bit more to add a corollary to "ever".

      --
      There are places where the networks are not touching,and there are places where they are-Boeing's Lori Gunter
    6. Re:Mod GP up by init100 · · Score: 1

      By recycling paper, you're ensuring that less trees get planted. If you want more trees, waste more paper.

      But it also ensures that less trees are cut down. There is no intrinsic value in planting trees, it is done only to compensate for those that are cut down. With recycling, you cut down less trees and plant less trees, while if you waste paper (i.e. put a lot of it in the trash), a lot of trees are cut down and a lot are planted. The wasted paper is burned in an incinerator (releasing its carbon to the atmosphere) or placed on a landfill. Why is this better than recycling the paper? It just uses another carbon cycle.

    7. Re:Mod GP up by wellingj · · Score: 1

      What is causing deforestation is monoculture coffee farms as opposed to shade grown coffee farms.....

    8. Re:Mod GP up by Red+Flayer · · Score: 1

      I'm not saying recycling is bad, but the allegation that we're chopping down the rain forests is just plain wrong; it's sensationalism.
      No, it's not wrong, unless by "we" you mean the paper industry. Rain forests are being cut down constantly to grow soybeans, for example.

      That's why the amount of trees in North America has been steadily growing over the past hundred years
      That's not the only reason, nor is it the prime reason. The prime reason is reclamation of previously deforested land by youn forests.

      There are more trees today than there has ever been, and the simple reason is because we use a lot of paper.
      That is some circuitous, and likely fallacious, logic. There are more trees than there have ever been because most of the US's forests are young, and have a higher tree density than mature forests. It's also misleading, since tree farming is quite different than reforestation; though I'd guess that young forests and tree farms have a greater rate of carbon sequestration than mature forests in temperate climes.
      --
      "Trolls they were, but filled with the evil will of their master: a fell race..." -- J.R.R. Tolkien on Olog-hai
    9. Re:Mod GP up by Dausha · · Score: 1

      "There are more trees today [in North America] than there has ever been, and the simple reason is because we [Americans] use a lot of paper."

      I beg to differ. Manhattan was covered in trees, as was the footprint of just about every major city on the East Coast. Most of Arkansas was covered in trees, but now roughly half has been converted into farms. With the exception of the Great Plains areas and perhaps Kaliphornea, farm land has reduced the amount of "tree-able" space. Then there are all those highways and interstates that occupy space once occupied by tress.

      So, while there may have been fewer trees 100 years ago, there are still fewer trees than _ever_ were.

      --
      What those who want activist courts fear is rule by the people.
    10. Re:Mod GP up by Lucidus · · Score: 1

      I recognize that your analysis is highly over-simplified because you are trying to make a point, and that's a fairly obvious and acceptable rhetorical device. But your 'facts' ("There are more trees today than there has [sic] ever been...") are simply wrong, and grotesquely so. Even limiting the discussion to trees and forests within the United States, your statement is completely false.

    11. Re:Mod GP up by schilsound · · Score: 1

      I don't see anyone accusing the paper companies of slash-and-burn; that's the province of countries with agricultural systems in lower stages of development, which means there is a less profitable way to utilize those resources.

      But what's glossed over is the fact that new plantings cannot replace the former ethic of paper and timber industries which was basically a kill 'em all free for all loggerfest.

      Plantings now are replacing trees lost to poor harvesting practice with regard to a total number of trees, but you cannot pay me to believe that by planting in numbers exceeding the "total count" of trees 70 years ago we're seeing replacement and reparation for those ecosystems over which we have trampled rough-shod.

    12. Re:Mod GP up by Anonymous Coward · · Score: 0

      Based on your comments, I assume you live a completely egrarian lifestyle, completely free of the bonds of corporate culture (except for your computer and slashdot account, of course)

    13. Re:Mod GP up by SatanicPuppy · · Score: 1

      More trees than there have ever been? Are you out of your tiny mind? The whole east coast was a forest once, mostly hardwoods. We practically deforested the entire country by the early 1900's, and when we replanted, we sure as hell didn't replant the same stuff. Oak, and cypress, and the other HUGE slow growing trees are still rare as hell, and the fact that there are a couple of pine trees where they were doesn't touch the amounts in terms of pure quantity or wood.

      Jesus. Right near me a lumber company is trying to get permission to salvage cypress trunks they cut down 100 years ago from the riverbeds because the 100 year old wood is obscenely valuable. 100 years ago, they let them sink because who cares, and now they're paying thousands of dollars an acre just to look for the damn stuff.

      --
      ad logicam Claiming a proposition is false because it was presented as the conclusion of a fallacious argument.
    14. Re:Mod GP up by drinkypoo · · Score: 1

      There are more trees today than there has ever been, and the simple reason is because we use a lot of paper.

      Is there more mass of trees? How about more surface area dedicated to photosynthesis?

      The small trees don't adequately replace the large trees.

      We're not cutting down the rain forests.

      Not for paper. They're cut down for farming and ranching. McDonalds is one of the greatest worldwide consumers of ex-rainforest beef...

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    15. Re:Mod GP up by operagost · · Score: 1

      Wow... your garbage rant has almost nothing to do with the topic of the article.

      --

      Gamingmuseum.com: Give your 3D accelerator a rest.
    16. Re:Mod GP up by nuzak · · Score: 1

      So that makes him wrong, eh? Where's the idiots who sling around the term ad hominem when it's actually appropriate?

      One anonymous slashbot dork is nothing, but probably the majority of the news/entertainment industry makes a living off of this kind of intellectual laziness. It disgusts me to share the planet with them.

      --
      Done with slashdot, done with nerds, getting a life.
    17. Re:Mod GP up by bigmammoth · · Score: 1

      Wow... your garbage rant has almost nothing to do with the topic of the article.
      By almost nothing I think you meant absolutely nothing which is fair, the meta data for the above post is certainly missing...
      Maybe I should explain.. lets see burning rainforest = more CO2 ...but wait... capitalism also builds a device that helps reduce CO2 emissions... maybe things are not black and white... the broad strokes of absolutism in the above post are there in hopes to illustrate the fallacy of absolutism in hole hearted support of anything...be that absolutist anti-capital rhetoric or the dogmatic belief the current economic model is as natural as the sky above us, and the pinnacle of egalitarian social structures.
    18. Re:Mod GP up by AJWM · · Score: 1

      There are more trees today than there has ever been, and the simple reason is because we use a lot of paper.

      That's not the only reason (although I'll grant it's a significant one -- I've seen Abitibi's tree plantations in Northern Ontario/Quebec). Another significant reason is the efficiency of modern agriculture, and in particular on larger farms. In total we need less cleared land for agriculture. The old smaller farms (particularly in the eastern states) are no longer profitable and are left to revert back to the forest they were before the land was cleared a couple of centuries ago.

      --
      -- Alastair
  26. I couldn't believe my eyes! by techno-vampire · · Score: 1, Interesting

    Before reading the comments, I took a moment to RTFM. (Yeah, yeah, I know, this is Slashdot, but we all slip up once in a while.) In the second paragraph, they mention "...an esteemed array of global experts -- including former Vice President Al Gore..." What did Al Gore do to deserve being called a "global expert?" I mean, besides producing a heavily-slanted "documentary" filled with questionable "facts" and spending more each month on his electric bill than I earn?

    --
    Good, inexpensive web hosting
    1. Re:I couldn't believe my eyes! by heinousjay · · Score: 1

      Well, he invented the Internet, so he must be a pretty smart guy.

      (Yeah, I know. It's a joke, you oversensitive Gore fans.)

      --
      Slashdot - where whining about luck is the new way to make the world you want.
  27. Big, Big Market. Emissions Credits. by ushering05401 · · Score: 1

    Companies that produce greenhouse emissions will get to make fewer upgrades to their plants if they invest in technology like this.

    It is cheaper to earn emission credits through investing in someting like this (plus good PR) than to upgrade your manufacturing/refining/whatever facilities.

    Regards.

  28. Dude, it's a CROP, ffs by Moraelin · · Score: 1

    Also, by outlawing the recycling of paper, you'll reduce the number of trees that are still alive, and eventually wipe out all the trees in the world, and thus, contribute MORE to global warming than minimizing its effect on the planet.


    You know, it's this kind of uninformed scares that give environmentalism a bad name.

    Do you genuinely think that anyone goes and wipes out rain forests for _paper_? No, seriously. It's a crop, same as grain or cotton or whatever. Relatively fast growing trees are planted, left to grow, then cut down, and new trees are planted. Maybe generously spread some fertilizer too. Repeat ad infinitum. It's that simple.

    It wouldn't even be economical to go around the world and wipe out woods for paper, since then you end up having to carry those trees over increasingly long distances to your factory. Plus, you have to keep buying new land or logging rights, and that's more money down the drain. It's a model akin to throwing money down a rat hole.

    The plan to let trees fix it and then burry it, isn't too stupid either. Originally Earth had a helluva lot of carbon in the air, in the form of methane and CO2. Not unlike Venus before it lost its hydrogen to solar winds, really. Then plants fixated it, and now it's under the ground. There's a reason why we have an age called Carboniferous, for example. That's where a helluva lot of coal comes from. It was basically a helluva lot of tree-ferns that fixated a helluva lot of carbon, and got buried.

    Mind you, it wouldn't make that big a difference, since we don't use as much paper as to come even close to the other carbon emissions. But, purely theoretically speaking, it's one way.

    About making paper, there's nothing inherent in that process that releases more CO2 into the air than those trees got from the air. Maybe if you powered it all with a coal power plant, you'd get that effect, but using hydroelectric/solar/nuclear power gets you a net effect of removing carbon from the air via those trees.

    Recycling... here also you seem to have some fantasy idea that it's absolutely free, and all that used paper you recycle somehow just miraculously ends up pristine again without any extra energy use. It's not. That used paper has to be cleaned with a lot of chemicals first, for a start. E.g., to get rid of the ink. Not only those aren't necessarily environment friendly, but some energy goes into producing them too. Then it's going to be converted to pulp again, just like wood would, which is only _marginally_ cheaper than starting from wood. And finally it's going to be bleached just like paper from wood would, because it ends up the same kind of naturally-yellow paper it was in the first place.

    And that's not even taking into account the effort and energy used to sort it, transport it, etc.

    It may surprise you, but a lot of recycling we do nowadays is... well, bluntly put: show business. We're not really saving the planet, we just let some ignorant sheeple feel good about themselves. Paper is one such example. Glass is another. Glass is made out of sand, and it's not any more economical to re-melt used glass than to just melt sand. Recycling whole bottles also doesn't get you much, since you end up washing them with strong chemicals, since you don't know what that guy stored in the bottle or how long a jar has been left to turn into a petri dish before being recycled. Plus, again, you spend a lot on sorting, transport, etc.

    And let me give you another example of something which isn't what many people assume: Tetra Pak style packaging. (E.g., milk cartons.) There seems to be a lot of mis-conception that its adoption had anything to do with being environmentally friendly. In practice it's just because it's cheaper than glass, weighs less, and it can be neatly packed in a truck without wasting much space. I.e., you can pack more of them in a truck.

    Recycling them, again, actually is a bigger pain and uses more chemicals, than just making a new one. But, hey, you've been trained to sort your garbage like a good trained monkey and feel good about it. Carry on ;)
    --
    A polar bear is a cartesian bear after a coordinate transform.
    1. Re:Dude, it's a CROP, ffs by xarak · · Score: 2, Insightful


      Good points well made.

      Two issues issue you are missing however:

        - recycling reduces VOLUMES of trash. Glass is not a raw material problem, but a landfill one.
        - burning paper in incinerators (Europe style) effectively releases into the atmosphere all the CO2 that the trees absorbed.

      --
      Atheism is a non-prophet organisation
    2. Re:Dude, it's a CROP, ffs by richlv · · Score: 1

      in ussr, milk and a lot of other substances were sold in glass bottles. most of the bottles were succesfully reused.
      of course, now we have carton packaging (with some plastic applied, which makes me very reluctant to burning them), which is not recycled, of course, thus contributing to the waste fields.

      and training to sort the garbage _is_ a good thing. as to for what happens after that...
      for example, a container, which has a bottle painted on it. wow, i thought, it's probably for plastic bottles, that's for glass and so on (i hope you agree that recycling plastic is a good thing :) ). turns out, it's basically for everything except food waste... which i don't place in containers anyway, as i don't live in an apartment. so, out current system of garbage collection and recycling sucks a lot.

      --
      Rich
    3. Re:Dude, it's a CROP, ffs by 0123456789 · · Score: 1

      Not just in the USSR; that's still done in (parts of?) the UK. I know that's still the case at my parents, but that's a pretty rural part of Scotland. The milkman delivers milk each morning, and picks up the empty bottles. They're sterilised and re-used with exactly no effort from the consumer.

    4. Re:Dude, it's a CROP, ffs by Anonymous Coward · · Score: 0

      - burning paper in incinerators (Europe style) effectively releases into the atmosphere all the CO2 that the trees absorbed.

      It looks like the CO2-caused global warming hysteria is beginning to unravel. Too bad billions of dollars more will be wasted before this house of cards finally topples.

    5. Re:Dude, it's a CROP, ffs by Anonymous Coward · · Score: 0

      "They're sterilised and re-used with exactly no effort from the consumer."

      I worked in a dairy bottling plant for a while, and I can asssure you, that the effort avoided by the consumer was more than made up for by the effort in the plant moving and washing and sterilizing those heavy old bottles.

  29. Re:For all you Arrested Development fans out there by heinousjay · · Score: 1

    Join me in destroying the evil beaver so trees everywhere can be safe.

    --
    Slashdot - where whining about luck is the new way to make the world you want.
  30. By capturing CO2 you capture C and O2 by Gotta+ask+yourself.. · · Score: 1, Interesting
    You know, we need O2 to live. Burying it into the ground doesn't sound like such a great idea, does it?

    The best way to reduce CO2 in the atmosphere still is and always will be to not emit it in the first place. Any other ways will just lead to the global reduction of Oxygen.

    That hard to get?

    1. Re:By capturing CO2 you capture C and O2 by yoprst · · Score: 2, Funny

      The best way to reduce CO2 in the atmosphere still is and always will be to not emit it in the first place
      Stop breathing now.

    2. Re:By capturing CO2 you capture C and O2 by Gotta+ask+yourself.. · · Score: 1

      Modded up as funny - and it is - but I wonder whether it was meant to be?

    3. Re:By capturing CO2 you capture C and O2 by frogstar_robot · · Score: 1

      If we stop breathing entirely then we'll die but if we breathe all we want then we'll use up all the oxygen. The secret is to only breathe in moderation.

      "Make love to me Frogstar!"

    4. Re:By capturing CO2 you capture C and O2 by yoprst · · Score: 1

      Yes and no.
      The whole CO2 scare is wrong on many levels. Through the course of history climate changed much more drastically than it'll ever change with human made CO2 emissions. We're better adapt, those who refused to are long dead. Same goes for O2/CO2 ratio (big insects didn't want to adapt, where're they now?).
      More CO2 means more favorable conditions to those who consume it. Those who do produce oxygen, at least nowdays. Die out, stay the same or flourish? What's gonna happen to CO2 then?
      Sun is burning out its hydrogen, the temperatures will increase in a long run no matter what we do - that's a nature's joke about environmentalists.
      Also, the whole thing is not enforceable - if the gains are immediate and attainable, and costs are spread over everyone any agreement will be broken again and again. You need a worldwide police to enforce them. But worldwide police means no more competition for law enforcement - Hitler's knocking at your door...

    5. Re:By capturing CO2 you capture C and O2 by Ihlosi · · Score: 1
      The whole CO2 scare is wrong on many levels.

      Your timescales are a bit off on many levels.

      Through the course of history climate changed much more drastically than it'll ever change with human made CO2 emissions.

      Those changes took a lot longer than what we're observing right now.

      Sun is burning out its hydrogen, the temperatures will increase in a long run no matter what we do - that's a nature's joke about environmentalists.

      It'll take a few million years before we can even observe this effect. If we haven't hauled our butts off this rock in a billion years, we deserve to be fried.

    6. Re:By capturing CO2 you capture C and O2 by yoprst · · Score: 1

      How does it make any difference?

    7. Re:By capturing CO2 you capture C and O2 by init100 · · Score: 1

      You know, we need O2 to live. Burying it into the ground doesn't sound like such a great idea, does it?

      The oxygen content of all CO2 in the atmosphere is extremely small compared to the amount of oxygen in the atmosphere. There amount of oxygen in the atmosphere is more than 500 times the amount of CO2 (21% vs 0.038%). Burying or releasing the oxygen contained in CO2 wouldn't make the slightest difference.

    8. Re:By capturing CO2 you capture C and O2 by Guuge · · Score: 1

      If we haven't hauled our butts off this rock in a billion years, we deserve to be fried.

      Ah, but you're forgetting the heat death of the universe! That's nature joke about people who don't commit suicide. You struggle all your life, and the universe ends anyway.

      </sarcasm>

    9. Re:By capturing CO2 you capture C and O2 by Anonymous Coward · · Score: 0

      When I was in college, I was a binge breather. I did most of my respiration on Friday and Saturday nights when my friends and I would get together and play breathing games until we are all light-headed.

      One time at a party, I breathed so much I passed out. I woke up the next morning in bed with an ugly SCUBA instructor.

  31. Pffft, this already exists by bogomipz · · Score: 0

    This is GRT's first step toward a commercially viable air capture device.

    Such a device already exists! In the movie Spaceballs, it was used to capture all of the air surrounding an entire planet. Congrats for reinventing 1987 technology, GRT!

    http://en.wikipedia.org/wiki/Spaceballs
  32. Make Charcoal, Not Paper by Anonymous Coward · · Score: 0

    Actually, producing charcoal from those trees would be a great way to sequester the carbon in a stable form. Paper, even when buried, will slowly decompose and emit some CO2.

  33. No, not so much by Sycraft-fu · · Score: 5, Informative

    Wood pulp is mostly soft wood, with spruce, pine and fir being real popular. Hardwood is sometimes used, but much more rarely and then generally birch. In the US at least a large amount of it is grown just for that purpose. There is neither the need nor reason to use old growth. Young, small, even diseased and dying trees do just fine. Thus it is fairly economical to farm them.

    Old, large trees of the hardwood variety are much more valuable for construction and thus you see them used there. No point in using an expensive tree for paper when a cheap one does quite well.

    That's not to say there's no reason to recycle, but please let's not spread BS about paper production. It is not people sneaking in to the rain forest and cutting down huge, thousand year old trees. It's tree farms in the US growing some scraggly pine and pulping that.

    1. Re:No, not so much by TapeCutter · · Score: 4, Interesting

      "but please let's not spread BS about paper production"

      If you look at my post I was not attacking US forestry, as I said most wealthy countries look after whatever they have left. But lets not kid ourselves that the bulk of the worlds woodchips come from from wealthy countries. High quality hardwood chips from the places I mentioned are extremely cheap when compared to what the original resource is really worth.

      "It is not people sneaking in to the rain forest and cutting down huge, thousand year old trees"

      Not sure about 1kyrs but the mill I worked at (early 80's) used 350yro mountain ash (Australian version is a huge tree) for house frames and bridge timber, the substantial amount of waste was chipped, the "hearts" are full of red dirt and are burned. The area is now a national park but the practice continues in other areas. Even in the eighties that was small scale and highly regulated compared to the modern day practices in the other places I mentioned, look it up - these people aren't "sneaking" they are large companies with the type of political clout the *IAA has wet dreams over.

      And if bulldozing eveything in sight is not bad enough, take a look at the Shell's practices in Nigeria or Texaco in Ecuador, or any of the countless number of times that western society has shat on it's neighbours veggie garden.

      --
      And did you exchange a walk on part in the war for a lead role in a cage? - Pink Floyd.
    2. Re:No, not so much by smallpaul · · Score: 0, Offtopic

      How do you respond to this: http://kleercut.net/en/node/26

    3. Re:No, not so much by Sycraft-fu · · Score: 1

      By saying that the people running this site clearly have an agenda, and that we've seen that people are quite willing to distort reality to try and prove the point for their cause. Sorry, but I'm not going to trust a site that is clearly anti-logging/extreme activism on this issue any more than I'd trust a Republican site to present a fair assessment of the president's job in Iraq. Sites with heavy vested interest and lack of good sources are not the things to use to try and prove a point.

  34. Somebody pleasemod this up by Flying+pig · · Score: 1

    If true it is extremely interesting (use as a precursor). You (future generations) are going to need ways of making things when even the coal runs out. However, given the toxicity problems of coal gas, it's hard to see why we would want to go back to using it as a fuel, unless the solar converter does not generate electricity as an intermediate step - which case it would make sense. Generate CO in the day, sotre excess, driver generator 24 hours. A way of generating timeshifted electricity with no need to move CO long distances make sense.

    --
    Pining for the fjords
    1. Re:Somebody pleasemod this up by Anonymous Coward · · Score: 0

      You (future generations) are going to need ways of making things when even the coal runs out.

      If in 50k years when the coal runs out we're still living on this planet I weap for humanity.

  35. And for one very simple reason by Sycraft-fu · · Score: 4, Informative

    Cost. Pure and simple there is no reason to cut down trees in another country and ship them back here to make paper. Paper is made form pulp, you literally grind up a tree. Thus really any tree will do. Softwood is fine, young trees are fine, even dying trees work fine. Thus is is by far the most economical to just grow them.

    If you are going to go to the trouble of shipping rain forest wood over you are going to use it to build something. A tree fetches far more as some nice mahogany tables than it would ground up and made in to newsprint.

    For whatever else you might think about companies, they don't waste things just for the fun of it. It all comes down to economics. No company in their right mind is going to waste money on importing expensive wood when cheap wood will do. Especially when rainforests are a touchy topic and doing so brings bad PR.

    I really think people who wish to push environmental action would do much better if they got their facts straight and stopped trying to make everything out to be a crisis.

    1. Re:And for one very simple reason by Pharmboy · · Score: 2, Insightful

      I think you hit the nail on the head: Those of us that are for CONSERVATION are put off by Environmentalists. The "all or nothing" approach of the Crisis Crowd leads to a lack of cooperation. I can't stand most Environmentalists, even though I agree with about half of what they are asking for.

      Some of us think that pollution should be reduced because it sucks to breath pollution. If it helps a spotted owl, then thats good, too. Water should be clean because I drink it. Hunting should be allowed but regulated because it helps manage populations. We believe minimum gas mileage standards for cars is at least as important for national security as it is for the environment. Some people like myself actually believe that "Global Warming" is likely overstated, but if you phase in carbon reduction gradually and provide some tax incentives, you can actually IMPROVE the economy and make our own immediate environment nicer. Oh yea, and the whole lower CO2 thing as a bonus.

      Of course, everyone has different opinions. It doesn't matter. If people would bother finding common ground on environmental issues instead of pointing fingers, I might enjoy some better fishing, and you might enjoy whatever is important to you. Then again, for some people on the fringes, it isn't about getting the net result, it is about CONTROL over others.

      --
      Tequila: It's not just for breakfast anymore!
    2. Re:And for one very simple reason by mdsolar · · Score: 1

      I think the reason then that you have such animosity is that you are not persuaded that there is a crisis. When there is a crisis, control over people is what happens. When there is a real war, there is a draft for example. Half measures don't ensure success. Perhaps you should consider if you opinion concerning global warming has been influenced by people who actually control you http://mdsolar.blogspot.com/2007/01/your-opinion-c ould-be-paid-for-by.html in a manner that is less honest than a plainly stated desire to require reductions in CO2 emissions.
      --
      Go solar, your choice: http://mdsolar.blogspot.com/2007/01/slashdot-users -selling-solar.html

    3. Re:And for one very simple reason by cens0r · · Score: 1
      I agreed with you up until this:

      Hunting should be allowed but regulated because it helps manage populations.
      The best way to manage populations is with the natural predators. When a wolf or panther kills a deer, which deer does it kill? The old, the sick, the weak, or the very young; regardless of sex. When a hunter kills a deer which one does he kill? The biggest the strongest male he finds. Not exactly the way nature intended. If regulate hunters actually meant regulating them to act like predators, I'd be all for it. And I'm not against hunting certain species who's populations have exploded. But human hunting as it exists now is a poor method for managing populations.
      --
      Jack Valenti and Orrin Hatch will be first up against the wall when the revolution comes.
    4. Re:And for one very simple reason by Finuance · · Score: 1

      When a hunter kills a deer which one does he kill? The biggest the strongest male he finds. Not exactly the way nature intended. I love when someone assumes people aren't apart of the "natural" system of Earth. You must believe we are inherently different from animals, perhaps, a creation of some alien species or some divine God?

      Actually, killing the strongest and most capable of reproducing would lower the populations of animals. A nearby reservoir/conservation HAD to let hunters in to squelch the extreme over population of deer in the past 10 years. It worked really well.

      I'd be staunchly against your proposal of hunters killing young, sick, or old animals due to one fact:

      1. They are less useful (less good meat, trophies, furs)

      And I don't think anyone wants more wolves or bears in the woods.
    5. Re:And for one very simple reason by cens0r · · Score: 1
      I would very much like more wolves and bears in the woods. They do plenty of good, and any harm they do is greatly exaggerated.

      Humans also evolved to kill the weaker animals. It only became fairly recently (the last few centuries) that we became capable of focusing only on the strongest and biggest animals.

      'd be staunchly against your proposal of hunters killing young, sick, or old animals due to one fact:

      1. They are less useful (less good meat, trophies, furs)
      But that wasn't the argument. I would not argue that the sick and weak animals are good for anything but culling the population. However, the argument was that hunting is an effective form of population control. And I continue to insist that it isn't. It doesn't take much logical thought that if you cull the population by consistently killing the best animals, you are exerting a reproductive advantage to the ones who don't meet your criteria. In essence, we are performing the exact opposite of natural selection.

      I have nothing against hunting or hunters as long as they stick to species that are populous enough to withstand it. What I do have a problem with is people making bogus arguments to justify it. Hunting is not a substitution for natural predation.
      --
      Jack Valenti and Orrin Hatch will be first up against the wall when the revolution comes.
    6. Re:And for one very simple reason by Finuance · · Score: 1

      I would very much like more wolves and bears in the woods. They do plenty of good, and any harm they do is greatly exaggerated. I myself would rather not have bears and wolves in the woods. I don't want them coming to my doorstep sniffing at my garbage, which they tend to do where I live. Maybe you live in the city, I don't know. They are far more a threat than a deer by design. Whether or not they use what nature gave them against humans could be debated.

      It doesn't take much logical thought that if you cull the population by consistently killing the best animals, you are exerting a reproductive advantage to the ones who don't meet your criteria. In essence, we are performing the exact opposite of natural selection. True, but you are thinking on a more grandiose time scale. What you are suggesting takes a much longer time than what hunters could do to a localized population of deer. They could easily cull the population given a decade. I doubt deer will somehow be naturally selected within that timespan to not be strong, to not have big antlers, and so forth.

      Hunting is not a substitution for natural predation. You're right. We don't kill the weak and old like "natural" predators do. However we are effective at reducing populations of animals in a localized area. It DOES work.
  36. HEMP by essence · · Score: 3, Interesting

    All this recycling and tree replanting should be avoided in the first place. We should be planting hemp everywhere. It has many more benefits than growing pine, for instance. Less to no chemicals needed. It's a nitrogen fixer (in the soil). Grows quickly. Hemp is the answer. Leave the forests to become old growth again.

    1. Re:HEMP by FredThompson · · Score: 3, Interesting

      You can make paper from hemp. Curiously, people burning hemp paper don't care about the smoke. Go figure.

    2. Re:HEMP by mwilliamson · · Score: 1

      puff puff pass

    3. Re:HEMP by Anonymous Coward · · Score: 0

      Maybe because it doesn't have enough THC to warrant caring about it?

    4. Re:HEMP by Johnny5000 · · Score: 2, Funny

      All this recycling and tree replanting should be avoided in the first place. We should be planting hemp everywhere.

      Sure, hemp may be a great plant to fulfill many of our needs.

      However, your plan fails to think of the children, and thus will be doomed to failure.
      Why, hemp is sort of like mari-juana. You might as well inject heroin directly into fetuses.

      --
      The libertarian solution to the failures of capitalism is to apply more capitalism til the failures are fixed.
    5. Re:HEMP by moosesocks · · Score: 1

      Imagine what the forest fires would be like?

      --
      -- If you try to fail and succeed, which have you done? - Uli's moose
    6. Re:HEMP by edunbar93 · · Score: 1

      It has many more benefits than growing pine, for instance. Less to no chemicals needed.

      What have you been smoking? You don't *fertilize* pine trees. You plant them in the ground and leave them there for about 80 years.

      --
      "No problem. I have the capacity to do infinite work so long as you don't mind that my quality approaches zero."-Dilbert
    7. Re:HEMP by Sandbags · · Score: 1

      You can also make a cheaper, more durable, softer fabric from it than cotton. It's illegal to grow in America not for it's mind altering characteristics, but because William Randolf Hurst, DuPont, The Cotton Growers Association of America, and the Lumber industry were getting killed in business by Hemp. It's the miracle crop for production where Soy is the miracle crop for food. Hemp can make paper, plastics, oils, strong soft thread, high protein content foods, and various medicines to help asthma, Alzheimer's, arthritis (and that's just the A's). It also rejuvenates soil making it a great rotational crop. It's a weed, needs virtually no fertilizer, grows quickly, and few insects can harm it so it needs little or no chemical protection. It's easy to harvest as well. Heck in the 16 and 1700 you could even PAY YOUR TAXES WITH IT!

      --
      There is no contest in life for which the unprepared have the advantage.
    8. Re:HEMP by h2k1 · · Score: 1

      actualy, hemp is cannabis, and there are varieties of cannabis without thc, the "drug substance" in the plant. all over europe hemp culture is becoming more vulgar for clothing fibers and paper. do you know that the ancient egipt paper was made of cannabis fibers?

  37. MOD PARENT UP by fbonnet · · Score: 1

    Read this page to know why charcoal is not only better than paper, but actually a viable way to solve CO2 emission problems:

    http://ergosphere.blogspot.com/2006/11/sustainabil ity-energy-independence-and.html

  38. Interesting! And than convert CO to Ethanol by egghat · · Score: 1

    Read this yesterday in the New York Times. A small company from New Zealand has developed a method to convert CO to Ethanol with modified bacteria.

    Carbon Gas Is Explored as a Source of Ethanol

    Bye egghat.

    --
    -- "As a human being I claim the right to be widely inconsistent", John Peel
  39. Can it be used for terraforming? by master_p · · Score: 1

    Could it be used for terraforming? sending a bunch of these to Mars, they could change the planet's atmosphere to being breathable in a few decades.

    1. Re:Can it be used for terraforming? by tchdab1 · · Score: 1

      Let's terraform the earth first.

  40. not a problem by bakuun · · Score: 1
    Exactly as you noted, the concentration of oxygen is many times larger than the concentration of carbon dioxide.

    Carbon dioxide concentrations is measured in ppm - parts per million Oxygen concentration is measured in % - part per hundred

    Naturally, there is a certain limit below which we don't want to take the carbon dioxide, even if we could. (after all, it would be kinda sad if all the plants started dying on us.)

    The oxygen which would be removed in this operation would be negligible.

  41. This is a money making scam! by goodEvans · · Score: 1

    1. Extract Carbon from the Air.
    2. Sell extracted carbon as combustible fuel
    3. Return to Step 1. ...
    4. Profit
    5. Profit
    6. Profit
    7. Profit ... (ad infinitum)

    1. Re:This is a money making scam! by had3z · · Score: 2, Funny

      You should apply for a middle management job in IT. you are highly qualified for it :)

      1. Extract Carbon from the Air.
      2. Sell extracted carbon as combustible fuel
      3. Profit
      4. Return to Step 1

      there, fixed it for you

    2. Re:This is a money making scam! by BlueTrin · · Score: 1

      Typical Dot Com model ... you were so close to profit ... yet so far at the same time ...

      --
      Don't you know it is now both immoral and criminal to think beyond the next quarterly report?
    3. Re:This is a money making scam! by ward.deb · · Score: 1

      1. Extract Carbon from the Air. 2. Sell extracted carbon as combustible fuel 3. ????? 4. Profit 5. Return to Step 1 there, fixed it for you

  42. so is this a new kind of by jonathan3003 · · Score: 2, Insightful

    vaporware?

  43. We Need This by DynaSoar · · Score: 1

    Anything that can be done to take some of the hot air out of blow-hard press releases masquarading as news stories like the physorg.com article linked to, should be. That was some seriously hyperbolic diatribe.

    --
    "I may be synthetic, but I'm not stupid." -- Bishop 341-B
  44. Interesting coincidence by XNormal · · Score: 4, Informative

    The MIT Technology Review has just posted an article titled The Case for Burying Charcoal. It showed up on my RSS reader shortly after I posted my comment.

    --
    Stop worrying about the risks of nuclear power and start worrying about the risks of not using nuclear power.
    1. Re:Interesting coincidence by Anonymous Coward · · Score: 0

      And one point that the article misses - before burying it you could use the charcoal as an industrial filter. Having a cheap (hey, we were just going to bury it anyway) source of charcoal filters could help a number of industries.

  45. Suggested tag by sakdoctor · · Score: 1

    dropagianticecubeintotheoceaneverynowandthen

  46. More nonsense from scientists. by Sqreater · · Score: 0, Flamebait

    Most likely, after a detailed energy accounting is done, this system of 1 million co2 removing machines and its associated systems will be seen to be drawing out of the atmosphere slightly less than the amount of carbon that powering it puts into the atmosphere. Come on now scientists. Stop this one dimensional thinking. Do the balancing.

    I suggest this is a thermodynamics problem and no scientist right now has the overview, the outside view to see it. Not yet anyway. There is no solution short of carefully maintaining a small human population. And we will not do that of course. So, there is no solution, just an advancing problem. More humans = more order = more need for fossil fuel power to create and maintain that order = more global warming.

    Intelligence in a species is pathological. I suggest there are even mechanisms in evolution, in the genetics of species on this Earth that suppress intelligence. I suggest that we perhaps evaded those mechanisms sometime in the past, maybe during the intense inbreeding around the time of the "bottleneck" in the human population on the Earth around 700,000 years ago. Intelligence has allowed us to stop evolution with regard to ourselves. We no longer evolve to fit the environment; we fit the environment to ourselves. And this is going to kill us.


    P.S. Did I just read that China is going to alter the weather to insure it doesn't rain during the Olympics?

    --
    E Proelio Veritas.
    1. Re:More nonsense from scientists. by Anonymous Coward · · Score: 0

      "Most likely, after a detailed energy accounting is done, this system of 1 million co2 removing machines and its associated systems will be seen to be drawing out of the atmosphere slightly less than the amount of carbon that powering it puts into the atmosphere. Come on now scientists. Stop this one dimensional thinking. Do the balancing."

      What do we need scientists for?

      Give the man a professor's chair and a publication. We can then fire all the other boring, mumbling old geezers and send them to homes for the stupid way of doing things.

    2. Re:More nonsense from scientists. by BiggerIsBetter · · Score: 1

      P.S. Did I just read that China is going to alter the weather to insure it doesn't rain during the Olympics?

      Yes, you did. It's been planned for a while now...
      http://www.msnbc.msn.com/id/13107271/site/newsweek /

      --
      Forget thrust, drag, lift and weight. Airplanes fly because of money.
    3. Re:More nonsense from scientists. by Goaway · · Score: 2, Insightful

      In short, you have absolutely nothing to say, but you are very certain that you are smarter than everyone else?

    4. Re:More nonsense from scientists. by Sqreater · · Score: 1

      Nothing to say that you can understand apparently. But that's usual.

      --
      E Proelio Veritas.
    5. Re:More nonsense from scientists. by hedge_death_shootout · · Score: 1

      APPLAUSE.

      Your comment should be printed on a T-Shirt.

      It is just about the most applicable response to 90% of the kneejerk blowhard knowitall comments made on slashdot.

    6. Re:More nonsense from scientists. by Goaway · · Score: 1

      Yes, obviously the SHEEP can't UNDERSTAND your UTTER BRILLIANCE.

    7. Re:More nonsense from scientists. by Ambitwistor · · Score: 1

      Most likely, after a detailed energy accounting is done, this system of 1 million co2 removing machines and its associated systems will be seen to be drawing out of the atmosphere slightly less than the amount of carbon that powering it puts into the atmosphere. Come on now scientists. Stop this one dimensional thinking. Do the balancing. Yeah, because you're so much smarter than those dumb so-called "scientists", nobody has ever thought of that before.
    8. Re:More nonsense from scientists. by Sqreater · · Score: 1

      I'm not talking about the economic cost of removing carbon from the air. I'm talking about doing the carbon accounting. That is to say, how much carbon do you have to produce in power plants to build and power these one million extractors, and what are the carbon costs of all the support devices and facilities?

      --
      E Proelio Veritas.
    9. Re:More nonsense from scientists. by Ambitwistor · · Score: 1

      I'm not talking about the economic cost of removing carbon from the air. I'm talking about doing the carbon accounting. That is to say, how much carbon do you have to produce in power plants to build and power these one million extractors, and what are the carbon costs of all the support devices and facilities? That's part of the economic analysis of sequestration: the ultimate question they attempt to answer is not what are the costs of sequestration, but rather what are the costs of stabilizing atmospheric CO2 concentrations at a desired level.

      The main upshot: it's cheap to store the carbon. It's not so cheap to capture it in the first place, and doing so requires ramping up power generation at coal/gas plants. (Most of the carbon is captured from power plants that emit it, not sucked generically out of the air.) However, even with ramped up power production, net CO2 emissions still drop substantially: to maybe 10%. The side effects: greater amounts of air pollutants, and greater fuel consumption. The increased fuel consumption leads to greater carbon emissions from activities related to coal mining, but that is minimal compared to the current carbon emissions of the power plants themselves — the emissions which would largely be eliminated with capture and sequestration.
  47. Feasibility? by Langos · · Score: 2, Informative

    "Another exciting benefit of the GRT device is that it faces down this challenge by capturing the emissions from existing power plants without imposing retrofit costs." It is certainly true that it opens a possibility for the Energy companys to keep spewing out CO2 and take little or no responsibility for their operations. Who is going to pay for these CO2-extraction units? Swedish company Vattenfall (Watter fall) made a profit of 150 000 000 000 SEK last year (divide by 9 to get the numer in euros) and invested less then 0.4% of the profit in R&D into renewable energy and CO2 emission control technologies. So who would be paying for these installations? I think it's pretty clear who I think should pay for it...

  48. You're just wrong on this by Rix · · Score: 1

    There is some farming, but there's always pressure to allow old growth harvesting. Often, that pressure succeeds.

  49. Rainforest != paper farm by FiniteElementalist · · Score: 1

    The rainforests aren't being cut down to supply paper. They are being cut done for farmland since those farmers use suboptimal farming techniques which necessitate burning through a lot of the land.

    Linking those two is disingenous to the end of providing meaningful environmental discussion.

    1. Re:Rainforest != paper farm by AlHunt · · Score: 0, Redundant

      They are being cut done for farmland since those farmers use suboptimal farming techniques which necessitate burning through a lot of the land.

      I'd like to see something to backup those assertions. My understanding is that farmland has been decreasing in the US for a long time. According to USDA as of 2003:

      The Nation's cropland acreage declined from 420 million acres in 1982 to 368 million acres in 2003, a decrease of about 12 percent. The net decline between 1997 and 2003 was 8 million acres, or about 2 percent.

      Here's an article indicating the same thing is happening in China:

      "The amount of land dedicated to grain production is expected to continue shrinking in the years ahead, but (farm lands) will still have to produce a minimum of 500 million tons to feed China in 2010," the China Daily said.

      Not that I particularly care for food raised on modern farms, but it remains that less and less land is producing more and more food.

      --
      1 in 4 Maine children in struggle with hunger.
    2. Re:Rainforest != paper farm by Ihlosi · · Score: 2, Insightful
      I'd like to see something to backup those assertions.

      You need to re-read the parent first. He's talking about rainforests. How much rainforest does the US have ?

    3. Re:Rainforest != paper farm by AlHunt · · Score: 1

      >You need to re-read the parent first. He's talking about rainforests. How much rainforest does the US have ?

      But, I carefully deleted that part to make my own point seem more valid ...

      Yeah, yeah, ok ... I missed the rainforest part.

      --
      1 in 4 Maine children in struggle with hunger.
    4. Re:Rainforest != paper farm by budgenator · · Score: 1

      let's see Washington, Oregon and Northern California is a fair bit of rainforrest

      --
      Apocalypse Cancelled, Sorry, No Ticket Refunds
    5. Re:Rainforest != paper farm by drinkypoo · · Score: 1

      You need to re-read the parent first. He's talking about rainforests. How much rainforest does the US have ?

      The redwood forest is a rainforest and it has been cut back to less than 50% of what it was before whitey showed up on the left coast and started logging california, oregon, and washington.

      Of course, it was cut down for building things, not for making paper, but the point stands.

      Think before you ask these questions. If that's too much trouble, use google.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    6. Re:Rainforest != paper farm by Anonymous Coward · · Score: 0

      I normally wouldn't respond to a thread from yesterday, but don't be so critical when you're such being a pedant. The previous posts were clearly talking about slash-and-burn farming destroying areas of rainforest. The point doesn't stand, it's off-topic.

    7. Re:Rainforest != paper farm by drinkypoo · · Score: 1

      Since I speak English in a logical manner, I answer the asked question, not the implied, unless the implied question is more interesting. Then I answer both.

      The only reason we have any rainforest left on the left coast is that it's legally protected. And the only reason you wouldn't slash-and-burn it is that the wood is too valuable. In a tropical rainforest there are definitely valuable woods but the mass of valuable wood is dwarfed by all the crap that's useless for anything but mulch (to humans working on a corporate scale anyway.) So when you want to clear a few hundred acres for grazing cattle, you just hack a firebreak around it, bulldoze over anything not too big, and set it on fire. You don't need to log it first.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
  50. Just bury the timber... by Half+a+dent · · Score: 1

    ...Sure some will slowly decompose and release carbon, but ultimately buried trees - isn't that what coal is?

    Of course in tens of thousands (millions?) of years our ancestors may start burning it again but by then that's not our problem!

    Maybe coal deposits were a carbon capture attempt by the dinosaurs to try and avoid becoming extinct through global warming!

    1. Re:Just bury the timber... by Anonymous Coward · · Score: 0

      The dinosaurs supposedly died from freezing to death (one of the main theories).

    2. Re:Just bury the timber... by Half+a+dent · · Score: 1

      Another reason why they really needed the coal.

  51. Why? by BlueParrot · · Score: 2, Insightful

    So just why would you recover CO2 from the air when it would be much easier to do so before it leaves the chimney? Until every single fossil fuel plant uses CCS, this is a waste of time, and if every fossil fuel plant used CCS we wouldn't really have much of a problem anyway. The easiest way to recover CO2 is to not emit it in the first place.

    1. Re:Why? by vidarh · · Score: 1

      The article addressed several reasons for that, one being that it means that you are able to extract the CO2 where you want it, i.e. where you want to use it or sequester it. Another being that improving efficiency of a lot of current industry and vehicles may be more expensive than removing the CO2 with these devices afterwards, and devices like this can be run anywhere, making agreements between developing and developed countries far easier to achieve as we're no longer tied to getting these countries to improve their industries. You could even create an added economic incentive for building and operating these devices, by for example granting the operator a 1/2 ton CO2 quota to sell on the open market for every ton of CO2 they remove from the air.

  52. making gasoline from CO2 by brunascle · · Score: 2, Interesting

    and once you capture the CO2, you can use it to make gasoline.

    ;-)

    1. Re:making gasoline from CO2 by An+Onerous+Coward · · Score: 1

      /me directs everyone on Slashdot towards their local thermodynamics class.

      --

      You want the truthiness? You can't handle the truthiness!

  53. Sequestration by DeanFox · · Score: 1


    TFA wasn't clear about the sequestration byproduct. What are they going to turn it into? We currently dump some 70 million tons of CO2 into the atmosphere a day. Each and every day.

    If all we do is turn that into some, even mildly toxic or useless power, what are we going to do with 70+ million tons of byproduct generated daily?

    -[d]-

  54. Some grasses sequester AND give fuel by mdsolar · · Score: 2, Insightful

    This article points out that carbon can be sequestered in soil with the right mix of plants. http://www.sciencemag.org/cgi/content/abstract/314 /5805/1598. Those plants can at the same time be used to make fuel.
    --
    Get off carbon: http://mdsolar.blogspot.com/2007/01/slashdot-users -selling-solar.html

  55. Plant more plants and trees by majortom1981 · · Score: 1

    Would planting more trees and plants be a lot easier and cheaper to reduce the co2 ?

  56. Ah the stupidity and short sightedness by cdn-programmer · · Score: 0, Troll

    I watched a documentary on the effects of Global Warming on Antarctic wildlife a few days back. Fortunately this was misbilled. The point is they said that "Global Warming" was affecting the Penguins. It seems the Emperor Penguins were nesting a little farther south as were some other species of penguins. Damn - those birds are smart. I'll bet if we have Global cooling they will move farther North. You might say they have adapted to a changing climate and know how to cope... especially since they have been around for a few million years. Either that or they have a survival strategy that doesn't take too much thought... like when you want to nest you get out of the water then you walk south for "n" days or miles or whatever metric they use and when you have gone as far as you think you should go then you find a nest. One could use such an algorithm in a robot!

    I happen to know there were trees North of the Arctic circle 5 million years ago because a good friend's drilling crew drilled into wood 200 meters down in a kimberlite they were looking for diamonds in. In order to have trees North of the Arctic circle you need a much warmer climate. The earth climate is always in flux.

    We already have CO2 absorbers in constant action on the planet. They are called trees. I would suggest instead of chopping them down faster than they can grow that we just let them do their jobs.

    But then the trees of course are often replaced with a concrete jungle. Well folks! Concrete absorbs CO2. It really likes it when it is in the form of Calcium Oxide and Calcium Hydroxide (in portland cement).

    So one way to do this chemically is to simply stack barrels of either Calcium Oxide or Calcium Hydroxide around and after they turn into Calcium Carbonate we can tote that back to the Cement Factory and roast it to (say way?) "drive off the CO2". and then reuse the stuff.

    If ANYONE has missed the obvious. Its going to cost as much in energy terms to remove the CO2 from the atmosphere as we gained from the fuel we burned when we put it there! This is REGARDLESS how you do it and if they've got a way that doesn't require this energy then they better trot on down to the patent office (along with all the other lame brains) and patent their perpetual motion machine.

    If we can get the taxpayer to fund this stupidy then we are well on our way to getting rich at the expense of the masses which seems to be the normal way things are going these days considering the amount of useless paper pushing going on, crap wannabe documentaries created by pollies which show up on movie channels (which I am about to cancel), and law suits such as the joy created by SCO.

    Of course as a programmer I am caught in the same crap that many other programmers are caught in and that is that if we want to create something useful we'll probably be sued by a patent troll. Then if my kids want to listen to a tune they may well be sued by the RIAA. In fact when I look back the stupidity that seems to be going on is maybe worse than during the Vietman war... and what did they sing then? "1, 2, 3, 4 what are we fighting for?"

    Oh.. we are fighting a war on drugs. This throws innocent single mothers in Jail. Oh... we are fighting a war on terror. But really it is an oil war meant to free middle eastern oil for a terribly inefficient USA automotive fleet. Oh... we are fighting a war on Global Warming! Yet its becoming more and more apparent that the idea of Global Warming driven by CO2 is bad science. Comparing CO2 concentrations for instance to water vapour concentrations is about the same as comparing the thickness of a sheet of toilet paper to a tree stump. We CANNOT MEASURE WATER VAPOUR ACCURATELY ENOUGH TO DETERMINE IF IT IS INCREASING, DECREASING or STAYING THE SAME AND CERTAINLY NOT WHY Yet it is Water Vapour that is the principal green house gas.

    I would suggest to anyone worried about CO2 levels to (1) plant some trees and (2) put some insulation in their houses and (3) figu

    1. Re:Ah the stupidity and short sightedness by Ihlosi · · Score: 1
      Comparing CO2 concentrations for instance to water vapour concentrations is about the same as comparing the thickness of a sheet of toilet paper to a tree stump.



      Sorry, but ... no. The contribution of water vapor to the greenhouse effect is estimated to be 50%-80%, the contribution of CO2 is 10%-35% (at least as far as I remember the numbers). That's not even an order of magnitude even in the worst case.



      And water vapor has some fairly quick ways of leaving the atmosphere - precipitation in solid or liquid form, for example. Carbon dioxide doesn't do that, at least not naturally.

    2. Re:Ah the stupidity and short sightedness by cdn-programmer · · Score: 1

      In the tropics and subtropics with temperatures in the vicinity of 35-40C we will find the concentration of water vapour is about 35,000 - 40,000 PPM and more. CO2 is about 375 PPM. This is about 100:1 and this is about the same as the ratio of a sheet of paper to a small tree stump. Mind you the change in CO2 levels is about 90 PPM estimated and we have no idea if water vapour has increased 90 or 1000 or if its decreased. We simply cannot measure water vapour accurately enough.

      It is quite correct to say that water vapour can leave the atmosphere very quickly. It can also be replentished equally quickly. Plants transpire all the time and then we have straight evaporation. So pretty much all of the water that we use for irrigation except for that fraction which ends up in the water table will be forced into the atmosphere where it will cycle some number of times dependant on the local environment.

      Thus one would expect that if we chop down the tropical rain forests and force massive areas into desserts that we should see reduced water vapour levels in those areas. If we reclaim desserts through irrigation and plant crops - then we should see increased water vapour levels in the areas we reclaim.

      The increase will be a permanent as the crops are and the decrease will be as permanent as any desserts we create.

      Also if we chop down enough tropical rain forests we might be able to shut down enough photosynthesis to cause a significant increase in CO2 from this factor alone.

    3. Re:Ah the stupidity and short sightedness by Ihlosi · · Score: 1
      This is about 100:1 and this is about the same as the ratio of a sheet of paper to a small tree stump.



      You're forgetting that different molecules have different greenhouse potentials.


      As I said - the ratio of contributions of water and CO2 isn't even 1:10 in the worst case.


      And the earth isn't all tropics and subtropics.

    4. Re:Ah the stupidity and short sightedness by Burnhard · · Score: 1

      Please don't continue the dumbness. Water vapour also produces things called Clouds. Clouds are one of the most important factors driving our climate. It isn't as simple as saying "x is 10 times more potent a greenhouse gas than y". The plain fact is scientists don't know nearly enough about all of this to be driving policy makers. Not even a tiny amount of useful reliable data exists with which to make all of the shrieking predictions of gloom and doom the media are full of today. I read yesterday that palaeontologists have found a hippo fossil in the Antarctic FCOL. I mean please, was it a Woolly Hippo? Climate is variable. 10,000 years ago the North Sea didn't exist! IMHO this climate change thing is all completely insane. Reducing pollution is good in itself though but the problem is Carbon isn't a pollutant.

    5. Re:Ah the stupidity and short sightedness by cdn-programmer · · Score: 1

      I didn't forget about absorption curves at all. Check here: http://en.wikipedia.org/wiki/Infrared and especially this curve: http://en.wikipedia.org/wiki/Image:Atmospheric_tra nsmittance_infrared.gif

      Please note the scale is in microns = 10E-6 anot not nanometers. The visible spectrum is at wavelengths shorter than 780 nm which is less than one (1) um. We see our 1st CO2 hole at about 2.7-2.9 um and the next at 4.2-4.3 um and then a HUGE water vapour hole between 5.5-7.7 um. Water Vapour is a much more important absorber.

  57. Waiter!... by Anonymous Coward · · Score: 0

    ...There's a Macaque in my paper! Now bring me a selection of Pine and be quick about it!

  58. wake me later by Rixel · · Score: 2, Insightful

    Bah! Call me when they have bottled Lightning.
    (and John McCain as well)

    --
    Never play chicken with a passive aggressive.
  59. Uh, somewhat no, somewhat yes. by WindBourne · · Score: 2, Interesting

    Think about your logic. If it was true that they were planting trees, then we would have LOTS more, not less. The reality is that the lumber companies who take from federal/state lands do NOT replant. Their argument is that other trees will do the seeding. OTH, when they take from private lands esp their own, then they are forced by contracts to re-seed. More expensive, but better results. Here in American, we WERE moving to trees being taken for private lands, but W. re-opened the forests and now allow them to take a great deal more (including LOTS of clear cutting). EU currently does that (they developed their woods long ago). But a number of nations still have loads of national forests so they allow the timber industries to nicely cut through them. A good example is Canada and Russia.

    --
    I prefer the "u" in honour as it seems to be missing these days.
  60. Re:Requiem for Macintosh by Goaway · · Score: 0, Flamebait

    You've never managed a snappy comeback, have you?

  61. Cost? Is $5.5 trillion worth it? by absent_speaker · · Score: 1

    Interesting, but no mention of cost. Plus, based on the articles figures, you'd need 1.1 billion of these by 2025.

    I'd guess these costs around $25,000 each, but let's just assume a modest $5,000 each. That's $5.5 trillion dollars, not including maintenance.

    I think it would costs less to rebuild our energy from scratch using renewable energy resources. More generally, the figures I've seen to make major differences are in the few hundred billion dollar range.

    I think prevention is the economical way to go.

  62. Terraforming? by Zaatxe · · Score: 1

    If this device can be solar powered and split O2 from CO2, we could terraform Mars!

    We would only need to add some hydrogen to be able to form H2O, but that's another story...

    --
    So say we all
  63. Yes and No. by WindBourne · · Score: 1

    The Carbon started out as C(x)H(2x - 2). After we burned it, it becomes CO2. And since CO2 is very stable molecule, it takes lot of energy to split it. IOW, we long ago removed the O2 from the air. Now, we are talking about burying the CO2. If that happens it will remove the O2 from our useage. So it is no longer a lose of O2.

    The real problem will be that we are taking CO2 and putting it in LARGE concentrations in one place. If it leaks suddenly, it will kill whoever is close to there. We would be better off using that CO2 and running it through acres of algae and allow it to convert it bio-fuel. In addition, it would be a LOT cheaper. The funny thing is that if we perfect this approach (using algae to create bio-fuels), it could be used to create oil on mars. And while most ppl like to think of oil as energy (increasingly expensive), its best use is for plastics and fertilizers. That is FAR more important to us.

    --
    I prefer the "u" in honour as it seems to be missing these days.
  64. Commercially viable? by mdsolar · · Score: 2, Insightful

    It is important to remember that this is an added cost to the price of fuel. The cost, maybe $0.30/gal is not so large that it looks like a killer, but you can't make money from this without making this connection. To go beyond just compensating for emissions and beginning to reduce atmospheric CO2 concentrations requires further cash input. So, perhaps you require each pound of coal used to pay for 8 pounds of CO2 sequestered and that raises electric rates by 4 cents per kWh. Pretty soon you put coal generation out of business since renewables will fill in.

    I think that what we should call this is potentially commercially feasable and reserve viability for things that increase economic activity.
    --
    Solar power for what you pay for coal power: http://mdsolar.blogspot.com/2007/01/slashdot-users -selling-solar.html

  65. First steps. by niktemadur · · Score: 1

    OK, so they've built the Cray Computer equivalent of CO2 absorption machines.

    It'll get interesting if they can make them small and inexpensive, then stick them in car mufflers, factory chimneys and the like, stopping CO2 release at its' origin point, as well as using the large devices to restore an optimal equilibrium (for us) to the atmosphere. But today, we're looking at a big, expensive prototype. First steps.

    I get excited when news of this sort comes out, as I like to consider myself an optimist, so I like to believe in the historical principle of extropianism, which means, in a nutshell: The next generation will find the way to clean up after their fathers' f**k-ups. I think we all have a vested interest in this principle being true.

    Personally, I'd love to see a Manhattan Project style effort to make these things a reality in every home. Hopefully the next US president will have the conviction to fully explore the possibility of government funding for this type of technology.

    --
    Lil' Thindime, lilting a lacrimose lament, krashes the kwaint konfines of Kokonino Kounty
  66. Do yourself a favor... by Anonymous Coward · · Score: 0

    and keep your damned mouth shut. Every time you open it, something stupid comes out.

  67. Why bury the carbon? by Khyber · · Score: 1

    Can't you strip the carbon from the CO2, release the oxygen, and save the carbon for use in things such as flexible conductors (like the little LCD connector used in my DynaFlex Powerball) or even making carbon-fiber products?

    --
    Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    1. Re:Why bury the carbon? by mdsolar · · Score: 1

      Lackner is addressing a problem of scale. If we had such a large demand for carbon as an industrial material that we were entering price competition for use of carbon as a fuel, then your suggestion might work, but the scale of carbon use as fuel dwarves that of industrial use. And, it is not clear that asphalt, plastic, wood and other large scale uses of carbon will not lead to oxidation anyway. Stripping oxygen from CO2 has to paid for in energy which is why we get our carbon from easier sources and would continue to do so even with this technology.
      --
      Get off carbon: http://mdsolar.blogspot.com/2007/01/slashdot-users -selling-solar.html

  68. So now green house gasses will be a problem. by arthurpaliden · · Score: 1

    I have said all along that green house gases will not be a problem until industry can make money out of some process to remove them from the air. After all, there is no 'real' money to be made in reducing output and thereby preventing the problem but there are piles of money to be made fixing it.

  69. Egellhard and Ford by adsl · · Score: 2, Interesting

    Some 10 years ago wasn't Engellhard (now a part of BASF) producing a compound which was painted onto Ford radiators. The idea was it would take CO2 out of the atmosphere?

  70. CO2 by dlhm · · Score: 1

    I have curbed my Mtn Dew intake by 1/2 I'm down to six or 7 a day, in my fight against CO2. I think it's funny people still blame cars for CO2, when we drink it all day long.

    --
    Ad eundum quo nemo ante iit!
  71. OTEC by Bubariba · · Score: 1

    A while back, I read a book which discussed Ocean Thermal Energy Converters (OTEC) http://en.wikipedia.org/wiki/OTEC and how they can be used to produce energy from the latent heat of the oceans. The book was called "Colonizing the Galaxy in Eight Easy Steps" http://en.wikipedia.org/wiki/The_Millennial_Projec t:_Colonizing_the_Galaxy_in_Eight_Easy_Steps. Essentially a Turbine is anchored in deep equatorial waters where the surface temperature is much higher than the water in the depths. The system runs on low pressure such that the surface water boils to drive the turbine, and pipes bring cold water up from ocean floor to act as the coolant. The bonus is that the nutrient rich water that is being sucked up comes to the surface which results in rapid algae growth which absorbs CO2. The algae can be harvested and then sequestered (or used as food). AFAIK, roadblocks to using OTECs are high initial capital costs, and the fact that they would be located in international waters.

  72. Ah, the American Idol generation weighs in... by Anonymous Coward · · Score: 0

    Please allow me to interrupt your reality-tv viewing long enough to point out a few things about how the US Congress works. These are things that you SHOULD have learned in school if they weren't too busy filling your head with meaningless trivia and indulging your txtspk on your term papers. LOL OMFG ROTMFFLMFAO!!!

    The Republicans are no longer in the majority in either of the two houses of Congress. Anything that happens now will require Democratic collusion.

    One lone Republican cannot pass a "bill" by themselves. Bills are debated and voted on by both houses before being killed or passed on to the President. The President then has the choice to veto the bill or sign it into law.

    If you think that the Democrats are any different than the Republicans, then you REALLY have been enchanted by the boob tube for too long. Both are entirely motivated by campaign contributions. Neither gives a crap about serving you or any other American. They both exist to fulfill their bought-and-paid-for campaign obligations. Why else would a person spend anywhere from hundreds of thousands of dollars to hundreds of millions of dollars to get elected to an office that pays almost nothing by comparison? Every single campaign dollar has a little string attached to it. Look at who's holding the strings and you'll see who's really running the country. Wake up, little teenie bopper!

  73. Why not just pick it up at the exhaust pipe? by cdn-programmer · · Score: 1

    My god. How many steps back has Thermodynamics taken with this artical and others cited!

    Why not just pick up the CO and CO2 at the tail pipe and run it through the magic chemistry and put the gasoline back in the tank?

    Why can't people see it take more energy to reverse the reactions than it does to run them in the forward direction? If you can do these magic things then you have a perpetual motion machine.

    The reason trees can do it is because the sun provides the required energy.

  74. Terraforming by MobyDisk · · Score: 1

    This might be very useful for terraforming planets with too much CO2 in the atmosphere. Or, for moving some from one planet to another.

  75. I have an idea by Anonymous Coward · · Score: 0

    Why don't we use hemp? It is called "weed" because it grows like one. It doesn't really use many resources, it grows fast, and it grows nearly anywhere. It makes lasting paper, strong rope, durable clothes, and it won't get you high if you light yourself on fire in case the government of your country was concerned. Also, the seeds have hemp oil which could be used as a biofuel...I don't see us using walnut or maple oil to power our cars, however maple syrup probably wouldn't be the best fuel source.

  76. First Step Towards MegaMaid? by jswigart · · Score: 0

    Is this the first step towards Mega Maid ?
    Spaceballs style vacuum equipped with this technology could save us from being more responsible
    Just jettison the bag towards the sun for cleanup?

  77. Isn't that one of the guns in Jedi Knight2? by Anonymous Coward · · Score: 0

    High Energy Magnetic Pulse?

    Well, summat like that, anyway.

  78. Sabatier & electrolysis by White+Yeti · · Score: 1

    This reminds me of technology that has been under study for over a decade (and about a century for Sabatier) for generating chemical feedstocks on Earth and fuel on Mars. Granted, that just moves the carbon around, but this proposal even mentions carbon dioxide sequestration.

    This new process (or method) may cut out one step of the process, making the process simpler and easier for Mars and Earth alike!

  79. Real Numbers by mdsolar · · Score: 1

    The Christian Science Monitor article link I submitted five days ago has more details on the actual device: http://www.csmonitor.com/2007/0419/p13s01-sten.htm l. It is 3 meters tall and captures about 18 kg of CO2 a year or about 4.5 kg of carbon. At this scale, it is probably not so good as a tree. These devices need to be much larger to compete with plants on the rate of carbon capture per unit area.
    --
    Get off carbon: http://mdsolar.blogspot.com/2007/01/slashdot-users -selling-solar.html

  80. Global warming solved! by chazzzzy · · Score: 1

    Alert the administration.. they were right.. Global Warming has been solved! Let's make bigger SUV's! Let's party like it's 1999!

  81. Why capture CO2? by Ambitwistor · · Score: 1

    I've seen a number of comments here arguing that we should reduce emissions (abatement) instead of capturing CO2 (sequestration). After all, it's better to prevent the disease than have to cure it, and relying on "quick fixes" just encourages people not to face up to the real problem.

    Well, that's nice in principle, but not fully realistic. It takes a great deal of economic and social change as well as political will to substantially reduce emissions. Even with full support from government and industry, it takes time to alter basic infrastructure. A "quick fix" buys time to put those slower changes into place. A lot of studies are showing that there are modest economic benefits to sequester early while abatement is ramping up, than not to sequester at all and try to do more abatement all at once: with a carefully planned combination of sequestration and abatement, overall CO2 concentrations may level out sooner and at less cost.

    1. Re:Why capture CO2? by mdsolar · · Score: 1

      I think you have a very good point but careful planning is hard. In a meeting I was at with Steny Hoyer's Distric Director http://events.stepitup2007.org/reports/472 the big news was the the task force in the house was feeling that meeting it's July 4 deadline would be pretty hard.

      On the other hand, shifting to renewable energy is probably cheaper than trying to sequester CO2 from fossil fuels so what this buys us really is insurance against the chance that we've already passed a tipping point towards positive feedback or will do so before we can bring emissions under control. This kind of technology might be able to keep up with natural sources of carbon released owing to warming soon enough to stop that release and avoid a runaway.

      We don't know if we are in that situation or not. Lackner's big thinking could be of huge importance.
      --
      Kick the carbon habit: http://mdsolar.blogspot.com/2007/01/slashdot-users -selling-solar.html.

  82. Shemp by Dorceon · · Score: 1

    Or even better, fields of the fourth stooge as far as the eye can see.

    --
    What sound do people on rollercoasters make? Hint: it's not Xbox 360.
  83. Sequestering for [ ] Fun [X] Profit by Dorceon · · Score: 1

    Here's how to make companies care about carbon sequestering: Make a machine that does CO2 -> O2 + Diamonds.

    --
    What sound do people on rollercoasters make? Hint: it's not Xbox 360.
  84. Glaring, unproven assumption by mstrcat · · Score: 1

    One of the things that the article assumes is that removing meaningful abouts of CO2 from the atmosphere will reverse what most people call global warming (If you want a laugh, ask 10 random people what global warming is and what it's affects will be). Point of fact is that most our 'understanding' of global warming comes from computer models (the same computer models that can't yet predict the weather 10 days in advance, they can't predict ocean currents, they can't predict trade winds, they can't predict El Nino). I'm sure many evironmentalist will show you a computer model that shows that if we just remove all the CO2 from the air, the earth will be a nice comfortable place to live. Before we spend a huge amount of money on removing CO2, more engieering needs to be done to show that it will do us any good.

    1. Re:Glaring, unproven assumption by InsaneProcessor · · Score: 1

      In further news: Plant life as we know it has been destroyed on the Earth due to CO2 harvesting. All green vegitation has vanished from the planet due to insafficient CO2 withing the atmosphere. People are now dieing due to oxygen poisoning.

      --

      Athiesm is a religion like not collecting stamps is a hobby.
  85. nope, wrong by nanosquid · · Score: 1

    You create more carbon dioxide emissions by making paper and burying it to get rid of the minute amount of carbon that the tree(s) obtained from its photosynthesis process.

    The carbon contained in a piece of paper is 100% captured from atmospheric CO2, just like the carbon contained in a tree is 100% captured from atmospheric CO2. Those amounts are certainly not "minute".

    Furthermore, recycling paper probably takes roughly the same amount of energy of making new paper.

    Also, by outlawing the recycling of paper, you'll reduce the number of trees that are still alive,

    Not at all. Paper can be made from trees grown specifically for that purpose, and a lot of paper is made just that way. Those trees don't grow any faster through recycling.

  86. simple market solution by nanosquid · · Score: 1

    There's a simple market-driven solution:

    (1) restrict international shipping of timber and timber products

    (2) eliminate all cutting of old-growth forests

    The market will take care of the rest; people will do tree farming or switch away from paper as necessary.

  87. Oops! (was: Uh...) by mysticgoat · · Score: 2, Informative

    The scrubber volume of a mature 10 acre stand of douglas fir is around 600 acre-feet (not 60). The freshly replanted plot would have scrubber volume of no more than 0.8% of this; its effective scrubbing volume would be less than 0.1% of the mature stand that it replaced.

    Apologies about the original figures. They were calculated using pre-coffee wetware, which has a local reputation for being notoriously unreliable.

  88. nothing here about the energy required by victorvodka · · Score: 1

    To make CO2 sequestration work, it would have to use extremely tiny amounts of energy - both to build and to operate the equipment. Otherwise it defeats the purpose - the reason we have a CO2 problem in the first place is because of all the energy we use. This article reads like a press release for the company in that it has no caveats such as how much energy this tech uses. My guess is that the answer is "a lot."

    --

    The flag just makes more sense than the constitution. - Judas Gutenberg

  89. Let me take you into the future - nanotubes by enmane · · Score: 1

    So, all this carbon gets yanked out of the atmosphere and is at some storage site that nobody wants to deal with but we have this need for carbon to make nanotubes (like the internet but much smaller). We take what was in the atmosphere and stick it into everyday appliances to eventually fill the landfills with this stuff.

    You see, it's a free resource used to build materials.

    Plausible, sort of, maybe

  90. I read that as by Anonymous Coward · · Score: 0

    "Wood pulp is mostly soft wood, with spruce, pine and fir being real poplar." :-)

  91. good post by zogger · · Score: 1

    good post, thanks.

    I wonder if they will change their minds about the sell off of tree farm acreage as the housing bubble continues to collapse and demand goes up for much smaller and cheaper housing, and also as soon as a few more major breakthroughs in cellulosic ethanol production are made?

    And do you have any references to the actual plots they have for sale? Thanks in advance if you do.

    1. Re:good post by inviolet · · Score: 1

      And do you have any references to the actual plots they have for sale? Thanks in advance if you do.

      In Texas, call Copper Station Holdings; they bought up a lot of it with an eye for resale in smaller plots to small concerns. I don't know about other states. If you

      --
      FATMOUSE + YOU = FATMOUSE
  92. co2 lags behind temperature by a few hundred years by ksw2 · · Score: 1

    I've read that ice core samples definitely show a trend between the CO2 levels and temerature. But it isn't the cause...it lags behind temperature by about 800 years.

        http://video.google.com/videoplay?docid=4499562022 478442170&q=global+warming+swindle&hl=en

    So if that's true, this obsession with carbon emissions as absolutely pointless.

    I find it disturbing that our planet seems to have taken the man-made global warming theory as Truth (thanks Al) but criticisms like this are never refuted, just dismissed as crackpot theories or (gasp) partisan politics!

  93. a lot of farms... by zogger · · Score: 1

    ...get logged because that is the only way they can stay on the farm. Urbanization results in bumping up property taxes, but farm profits (speaking very very generally now), aren't adequate enough to cover these increases in taxes. They get a company offer them enough to cover taxes for a few years, they take it. And a lot of times this process is done on purpose to enrich a few local fatcats. They'll acquire some acreage in the middle of productive farmland, throw up a huge subdivision. This results in the call to increase taxes, because now you need more and better roads, a new public school or two, increased police and fire resources, etc. so they bump up the taxes. Lather rinse repeat=farmers get to the point they try to save the farm, sell off the stumpage for cheap, put off bankruptcy for a few years, go under anyway. Local fatcats (or larger transnational "investors") pickup more prime acreage at the auction for cheap.

    Consolidation of wealth, vertically, upstream. Same as what happened in the great depression, just now they are a little slicker about how they go about it. they are doing the same thing with a lot of public infrastructure as well, the proposed supercorridors being sold off to foreign wealthy investment groups, water rights and treatment facilities, etc.

    1. Re:a lot of farms... by Dan+Ost · · Score: 1

      Man, that's the scariest slashdot post I've ever read. Largely because it makes so much sense.

      --

      *sigh* back to work...
    2. Re:a lot of farms... by BigDogCH · · Score: 1

      Agreed. Is this the same website? WTF?

  94. Tree farm == ecosystem destruction by Anonymous Coward · · Score: 0

    Studies show that a southern pine tree farm harbors 10% as many species as the native forest it replaced. Once the tree farm is established and the damage done, ongoing use of the farm for further generations of trees has small additional impact. But if we think not in terms of damage but of opportunity for restoration, it becomes clear that letting the tree farms revert to native forest (i.e., to stop growing trees) would over time be a healing of the wonderful ecosystems that were destroyed by the modern paper industry.

    Live small, people!

  95. This is old technology! by nullkill · · Score: 1

    I've actually had a pair of underwear with a filter built into the back to sweeten out farts for years.

    This is essentially the same thing.

  96. Re:co2 lags behind temperature by a few hundred ye by g8oz · · Score: 1

    Wow, you read something somewhere and saw a video?

    I guess all those scientists on the Intergovernmental Panel on Climate Change can just screw off now, eh?

  97. Re:co2 lags behind temperature by a few hundred ye by Anonymous Coward · · Score: 0

    And because you won't be alive in 800 years, it's magically not a problem?

    Sounds pretty short-sighted to me, as it's not unreasonable to assume the human race will exist in 800 years.

    C

  98. Re:co2 lags behind temperature by a few hundred ye by Lithdren · · Score: 1

    ...or (gasp) partisan politics!

    I'd blame that more on the fact that one, rather specific group, was rather insistant that there was NO warming trend, dispite crazy amounts of evidence.

    Lots of people are sure its due to humans, in one form or another, and thats debateable. But the core issue, a warming trend, was for qutie some, a partisan political issue. Or at the very least, the loudest ones made it so, rather then say a majority.
  99. Re:co2 lags behind temperature by a few hundred ye by ksw2 · · Score: 1

    Yeah, this is pretty much what I mean. Nobody answers stuff like this on its own merit, they just get snarky and duck the question.

  100. Re:co2 lags behind temperature by a few hundred ye by ksw2 · · Score: 1

    Yeah, good point. I personally don't care about the politics involved; I'd like to see all scientific viewpoints taken seriously, however.

  101. Re:co2 lags behind temperature by a few hundred ye by g8oz · · Score: 1

    Scientists have come up with a consensus that says CO2 is causing climate change. The dissenting theories remain on the fringe because they don't satisfactorily explain enough data. If they had merit they would attract more support and would over turn the current consensus. Thats the way science works.

    The same thing happens over and over on Slashdot, some one points out an alternate view and says that because it exists that we can dismiss scientific consensus. Its enough to make a fellow snarky.

  102. The Great Global Warming Swindle by Anonymous Coward · · Score: 0

    Ok seriously.... all these posts about global warming make me want to vomit. News flash people... C02 does NOT cause global warming! Humans are not responsible for global warming! The sun is! I thought the crowd on slashdot was smarter than to buy into all the media hype. Back when we were emitting the most C02 during the industrial revolution the temperature actually went down and everybody was talking about a second ice age! Volcanoes alone emit more C02 than humans - not to mention the ocean!

    Everybody - watch "The Great Global Warming Swindle" video and please stop spouting the nonsense.

    http://video.google.com/videoplay?docid=4499562022 478442170

    1. Re:The Great Global Warming Swindle by Ihlosi · · Score: 1
      C02 does NOT cause global warming! Humans are not responsible for global warming!

      Remind me again why the average temperature on Venus is higher than the maximum temperature on Mercury, even though the latter receives a whole bunch more solar irradiance ?

      Back when we were emitting the most C02 during the industrial revolution

      Uh ... you do know when the industrial revolution was, and that the CO2 output back then was a lot lower than today because, well, only very few countries were actually industrialized ?

      Volcanoes alone emit more C02 than humans - not to mention the ocean!

      Spoken like someone who can't do a simple balance. Is basic math really that difficult ?

      Everybody - watch "The Great Global Warming Swindle" video and please stop spouting the nonsense.

      If you got all the nonsense you're spouting from that video, then I definitely don't need to watch it.

  103. Re:co2 lags behind temperature by a few hundred ye by ksw2 · · Score: 1

    It's nice to have a definitive source for debunking why specific fringe theories are incorrect, instead of "you just have to trust the consensus". (It must be true, a committee said so!)

  104. CO2 vs Water vapor and sea level... by pavera · · Score: 1

    Ok, this is an honest question that just occurred to me, I have no clue what the answer is.

    So we have CO2 which is supposed to increase the energy trapped on the earth raising temperatures.
    We know that Water vapor does the same thing.

    From what I have heard, one of the principle problems with global warming is melting ice caps/sea level rise.

    In a system with higher energy, a lot more water will on average be in a gaseous form instead of liquid. Will this increased evaporation offset sea level rise at all? I would think it would at least as much as the increase in volume of the sea because of temperature increase, and I've seen that sited as causing something like 1-2 meters of the rise in sea level over the next 100+ years.

  105. they pulled... by zogger · · Score: 1

    ...a variation on that scam with the klamath falls farmers vs the sucker fish deal back in 2000-2001. They used a scam, saying a non native sucker fish was endangered inside the dammed up lake the farmers paid for for their irrigation canals many years ago, and shut the dam taps off. They also kept insisting they pay their canal irrigation water fees! In addition, they used the water in a hydro electric dam, I think as part of the enron scam, to sell power at peak rates when they shut down other facilities for "maintenance". It was a pretty involved scam (I am greatly over simplifying all the angles involved), but it bankrupted a lot of farmers, caused divorces, suicides, etc. I was an online pretty serious activist trying to help them, until I found out the farmers leadership was seriously compromised with neocon insiders-quislings- who were faking out the farmers and letting the administration get a free skate on not intervening (the lake was full, there was no actual water shortage and those stupid fish were never endangered in the first place, and they kept claiming the ESA "trumped' the fifth amendment!!). So I quit trying to help them, a waste of time. Some "got it" and contacted me privately to say that I had nailed what was going on, but they kept getting shouted down in local meetings, etc, they wanted everyone to stick to neocon talking points only), but most of them remained brainwashed into the neocon party line (which is to enrich the transnationals and expand the power of the central government in the executive branch, with whatever it takes basically, all the time, every issue) and blamed it on "the librul enviros!", when it was really a handful of pretty rich corporations who profited from the ripoff.

    that 'build a subdivision" deal is well established, one of the reasons the rich power brokers love the illegals invasion,(sudden influx of illegals and kids, whoops! need a ton more schools, expend the hospital, etc) because it helps them seize property and consolidate corporations into fewer hands. It's a quasi "legal" huge skim run by professional grifters. It works pretty well for them actually, seize property at auctions on the cheap, drive down wages,etc and they have misguided Dems (also faked out at gh levels by rich scumbags) supporting them, instead of trying to force those dipsquat corrupt foreign governments to pay a minimum *living wage* so those folks won't want or won't need to sneak over the border in the first place.

    A lot of this stuff is conencted, once you follow the money and see who profits from it. It's designed to ripoff and disenfranchise the middle class as much as possible, to get to that two class global society model they really are after, the technofeudalistic society. the middle class actually produces the wealth, so that's where they concentrate forces on shifting ownership of said wealth. Pretty simple really.

    Ya, sorta scary when you see them "win" all the time, but it gets less scary once you can see the congames (you have to see the problem and the perps to even begin to figure out some solutions), and the net is helping us to bust out of the media psyops that supports them in their congames and rackets, the stuff Ike warned us about that would happen. (I actually remember that speech, live, but didn't really understand it until some years later, I was a kid then. When they whacked JFK and got away with it, THEN I finally got it, epiphany for me, bigtime).

        It takes one person at a time helping another to "get it" on what is going on.

    And that is why I chime in on these topics at slashdot and have had at various other forums for years and years, and before that wrote nomme de plume pamphlets and news articles, etc. And why I will answer their online shills and expose them for their lies and half truths. I care about all peoples, my country, what goes on, and can't deal with the slimebag crooks by accepting their greed based BS.

    Long hard road so far, but I am actually hopeful that eventually it will pay off as it gets harder and harder for them to cover their crimes with the forced media spin and blackouts. Cats outta the bag now.

  106. omg by wzzzzrd · · Score: 1

    a warmer atmosphere leads to more co2, not the other way round. visible particle pollution may be one problem, BUT NOT CARBON DIOXIDE. it's a friggin natural gas which makes up a fraction of our atmosphere. water vapor is causing way more greenhouse effect than this tiny bit of co2.

    --
    On second thought, let's not go to Camelot. It is a silly place.
  107. In pinewood Europe by Pseudonymus+Bosch · · Score: 1

    In Australia we plant non-native pine trees for timber

    Strange, in pinewood Europe we plant non-native eucalyptuses for timber!

    --
    __
    Men with no respect for life must never be allowed to control the ultimate instruments of death.
    GW Bu
    1. Re:In pinewood Europe by TapeCutter · · Score: 1

      I assume they are hardwood species, most commercial "gum" trees are hardwood and grow a lot faster than the "old world" hardwoods such as oak. Slow growing native Aussie trees such as blackwood have all but dissapeared outside national parks, we pissed away a valuable natural resource to make cheap railway sleepers and such, now if you can find a supplier it is as expensive as oak or teak.

      I once read that France has a 300yr harvest cycle for their remaining oak stands, where as a 100yro gum tree is considered "mature" for logging purposes. I know that Spain now also has a healthy population of Aussie "blowflys" residing in their eucalyptus plantations, I would imagine the gum trees in general cause similar problems for native flora/fauna as pine plantations do over here.

      OT: One slow growing species we did manage to to keep long enough to learn how to manage is the rather odd "ironbark". The grain so dense it sinks in water (as does good quality teak and mahogany), it cannot be nailed without drilling pilot holes (personal experience both manually and with a 2.5" nail gun). It is also extremely resistant to fire, rough slabs and sometimes hollow logs of the stuff were used by settlers to build chimmneys in their homes and it is still used widely for door sills and posts. I have seen news footage from Perth where ironbark posts (2-3' in diameter) were chared but still intact after surviving a warehouse fire hot enough to melt the steel framing they were supporting, they are a classic example of adaptaion to an environment where bushfires are viewed as a "season".

      --
      And did you exchange a walk on part in the war for a lead role in a cage? - Pink Floyd.
  108. Where does carbon come from? by HeadlessNotAHorseman · · Score: 1

    Where does carbon come from? Imagine that millions of years ago there was quantity X of carbon in the "carbon system". Since that time, quantity Y of carbon has been sequestered in the form of fossil fuels etc. 300 years ago there was quantity Z of carbon in the carbon system.

    So does X+Y=Z? If so, then all of the carbon we are unsequestering is simply bringing the atmospheric levels back to what they were millions of years ago. Or is there a larger super-system of carbon, in which the carbon is naturally laid down in the form of oil and coal and stuff, but more carbon is introduced from some other source? I'm just a bit confused about how reintroducing all of that sequestered carbon could be considered so bad if millions of years ago the carbon was in the system and life was flourishing.

    --
    I like my coffee the way I like my women - roasted and ground up into little tiny pieces.
  109. Confusion by Ihlosi · · Score: 2, Insightful
    Beside, I can't get an accurate 3 day forecast, now I am supposed to rely on a 50 year one? Get the week right first, then I will listen to your models.



    You're confusing weather forecasts with climate prediction. They're two very different things.

  110. It's not about the US. by TapeCutter · · Score: 1

    "Hardwood is a piss-poor way to generate pulpwood, because hardwood grows so slowly."

    I agree, my point is that in the large tropical rainforests of the world virtually nobody replants and no care is taken to ensure the resource can grow back naturally. The trees are in effect "free" and make excellent raw material for high quality paper. What makes you think these people give a flying fuck about regrowth, in many places they don't even give a fuck about the natives who have lived there for millenia. Natives are simply a hinderance to operations and are chased of their land by armed corporate mercenaries and prevented from returning because they don't have a bit of government paper that says they can continue to live there.

    I also generally agree with the rest of your post, I was not attempting to say anything about US forestry practices in particular only that we have significantly better native alternatives for pulpwood here in Oz that can use the same harvesting equipment, produce a similar yeild in 1/3 of the time, and are good for the environment to boot. Yet we continue to plant pine for domestic pulpwood. (Not sure if they are useful for plywood or structural purposes)

    We don't really have a problem with residential creep (imagine the US with only 20M people), most of our forests have dissapeared over the last 150yrs or so to make way for farmland or pasture but there are still large areas covered with virgin forests.

    OTOH: I think the US does share in some culpability for negligent destruction and corrupt governments in the other two thirds of the world, western business and politics in general have, and still are, screwing the poor and "uncivilized" to profit from the rich on a global scale.

    --
    And did you exchange a walk on part in the war for a lead role in a cage? - Pink Floyd.
  111. Free Air Now!!! by kehren77 · · Score: 1

    Can't you see the millions of angry hippies turning blue as they don't breathe in protest of the capturing of air?

  112. Re:Uh...Yeah, actually by Ken+Erfourth · · Score: 1

    I live in Wisconsin, which is one of the largest producer of paper in the country. I have known people who work in the business of cutting down the trees from which much pulp paper is made.

    They're Poplars. Young Poplars, 10-15 years old. They cut em' down, and grow em' back. Poplar bark is easy to shuck off, and the wood is very white, which cuts down on the bleach needed.

    I agree about recycling paper. I think it is silly, from a carbon footprint standpoint. What I think we should do is to gather waste paper, heat it anaerobically to boil off the flammable methane and methanol (use that to run the process and create extra energy) and use the remaining carbon to build a mountain (Wisconsin is a great place, but we don't have any actual mountains). I don't know how hard it is to turn charcoal into graphite, but if it isn't too hard, then we really need a mountain somewhere just west of the Fox River Valley. We also have a lot of PCB polluted sediment in the Fox river (from old paper mills, among other things) which needs a long, long, term home. I think that sediment would make a good center of the Wisconsin Mountain, and could be nicely walled off and isolated by giant blocks of graphite, which would form a huge carbon sink.

    So toss that paper into the waste stream, and lets build a new green mountain out of charcoal and polluted sediment in Wisconsin!

    Hmmm, maybe I gotta work on that slogan a little bit, but I've still always liked the idea...

    --
    Fundamentalism is a crime against humanity
  113. Spaceballs the Vacuum by bartmank11 · · Score: 1

    "WE CALL IT MEGA MAID !"

    Ready now chant Suck!... Suck!.... Suck!....

  114. We're not doing nothing. by Grendel+Drago · · Score: 1

    So far, man's attempts to influence his environment for the good have historically brought about far worse negative consequences. For sure, when the situation is not fully known and fully assessed, doing nothing is the best and safest course of action to take even though it requires the strongest fortitude and leadership which are not factors one hardly ever finds in the ruling class.
    I'd be right with you on that whole doing-nothing thing, except that we're not. It's not like we're faced with the choice of whether or not to monkey with the atmosphere; proposals to actually reduce the amount of carbon that we puke up into the atmosphere are essentially taboo at this point. The question that's posed is then in what manner we perform said monkeying.
    --
    Laws do not persuade just because they threaten. --Seneca
    1. Re:We're not doing nothing. by cbacba · · Score: 1

      Pick a card, any card, every cards a winner. welcome to the darwin awards casino.

      Bigger actions cause bigger consequences and that includes serious unintended consequences. We're still way too tiny and insignificant to have a serious intentionaly effect but it's happened before that we are able to negatively influence things - not through our power or control but through actions creating situations beyond our control. - like introducing foreign species into an environment with no natural predators.

  115. Re:Uh...FU Capitalist tree by X'16435934 · · Score: 1

    In Soviet forest, trees breathe YOUR CO2.

      Uhhh wait..

    --
    - Ecsad Essemal
    The Hexadecimal TV-REMOTE!
  116. Andthenandthenandthenandthen? by Anonymous Coward · · Score: 0

    Well? Big deal. yay. Carbon. NOW WHAT?!?!