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Long-Term Carbon Storage

zebadee writes "The UK has given £25 million ($45 million) in funding toward storing CO2 under the North Sea. The article at the BBC has a discussion on how this will be achieved. Basically gases produced at the power station will be pumped into old oil and gas fields for long-term storage. This has the added effect of pressurising the wells, allowing better recovery of the contents."

50 comments

  1. Tonic by pyrrhonist · · Score: 4, Funny
    The UK has given £25 million ($45 million) in funding toward storing CO2 under the North Sea

    An additional £25 million ($45 million) in funding will go toward adding the obligatory gin.

    --
    Show me on the doll where his noodly appendage touched you.
    1. Re:Tonic by 3waygeek · · Score: 1

      How much has been budgeted for the quinine?

  2. Better than the atmosphere... by Tanmi-Daiow · · Score: 1

    Finally they found some money to put it somewhere.

    --
    "Of all tyrannies, a tyranny sincerely exercised for the good of its victims may be the most oppressive." - C.S. Lewis
  3. Escape route by centauri · · Score: 1

    Can't the CO2 just escape through the holes made to extract the fuel?

    On a less serious note, those fossil fuel guys are planning this because they know that years from now we'll need that carbon and they can charge us to have them drill it back up again.

    --
    Don't blame me, I voted for Durga.
    1. Re:Escape route by Mr2cents · · Score: 3, Funny

      > Can't the CO2 just escape through the holes made to extract the fuel?

      In that case, it will just become a tourist attraction known as the Soda Sea.

      --
      "It's too bad that stupidity isn't painful." - Anton LaVey
  4. Oh no! by Anonymous Coward · · Score: 0

    At first I thought it said "Long-Term Carbon Shortage"... I was like, WTF?!

  5. On the plus side..... by flawedgeek · · Score: 3, Funny

    If we ever need to adjust the Earth's orbit, just stick a big drill down into the pocket, and WHOOOSH, just like that.

    --
    My other Sig is .40 caliber.
  6. Only helps a little by WalksOnDirt · · Score: 3, Interesting

    Given how the article talks about how expensive carbon sequestration is, nuclear plants seem to be a better option for producing electricity. You're not going to be able to separate out 100% of the carbon dioxide from the waste stream anyway.

    The example of reducing the emissions from steel plants is very interesting. I'm sure there are ways to refine steel that don't release carbon (e.g. electrolysis), but using coke would probably still be much cheaper even with the costs of removing most of the carbon from the flue gases. Getting steel plants to implement this without being wiped out (by carbon emitting overseas competitors) or supported by massive government subsidies sounds very tricky, though.

    I really think the best first step for reducing green house gases is to stop producing more coal fired power plants, and schedule the eventual closing of the current ones. The amount of damage done to the atmosphere by the remaining oil to be extracted is probably manageable, but there is enough coal (and tar sands, oil shale, etc.) to cause much more severe problems.

    --
    a,e,i,o,u and sometimes w and y (at be if of up cwm by)
    1. Re:Only helps a little by dasunt · · Score: 0

      This also neglects the issue of "How much carbon does mankind produce" vs. "How much carbon does nature produce." (It may turn out that natural production of CO2, including volcanos, dwarf any human contribution).

      The research in that area ends up reporting different results depending on who is paying the scientist's bills. (And its easy to find criticism about scientific climate models and data collection methods.)

      There is also the possibility that earth is due for a natural phase of global warming, which means that warming climates are inevitable.

      If global warming is due to CO2, there is the question of how much it costs to reduce CO2 emissions, and if that money could be better spent on other environmental causes.

      Due to the above, I'm rather skeptical about most proposals to limit global warming. The data isn't there to justify the expenditures, especially considering that (1) sooner or later, climate change will happen naturally sooner or later and (2) if global warming will happen, it will probably have a net benefit on many countries' economies.

      I'd rather see the money spent on tasks with a more tangable benefit. We know what will happen if we spend $1M to set aside a wildlife area. We don't know what will happen if we spend $1M to put X units of CO2 under the sea floor.

    2. Re:Only helps a little by Bastian · · Score: 2, Insightful

      Personally, I think that every energy solution based on using 'cleaner' energy that I've heard of is at best too little too late, and at worst a simple case of whistling in the dark. If the world's energy usage continues to skyrocket the way it is, closing all the coal fired power plants in the world and installing the best scrubbers and catalytic converters and such on every other fossil fuel burning device is only going to put us a decade or two behind the current curve. Heck, I think that the entire idea of "clean energy" is a refuge for people who haven't considered the laws of thermodynamics and people who tend to tunnel-vision on only a few types of pollution. Even windmills will alter the planet's climate if you put up enough of them.

      Really, the solution is to get people to quit using so @$%@$ much energy in the first place. Until we give up our need to have large houses with big, manicured lawns, motorized private transportation, having more than two children, and individually wrapped disposable everything, we're going to have to live with the possibility that we or our descendants are going to end up living on a planet that's not fit for supporting human life anymore.

    3. Re:Only helps a little by WalksOnDirt · · Score: 1

      The people who measure such things think that volcanoes only emit 1% as much carbon dioxide as human activities do. Since this doesn't seem like a terribly difficult measurement to make, I doubt they are off enough to make a difference.

      I do think the severity of the dangers of global warming are exaggerated. Such "dire" predictions as biomes moving 100 miles north in a decade or two don't move me much. Global warming should cause more rainfall, but oddly most of the early models had all the extra rainfall falling at sea. The modelers seem quick to note that the higher temperatures cause more evaporation, leading to more stress on plants in dry areas, but much slower to acknowledge that higher levels of carbon dioxide in the air mean some plants don't need as much water. Plus, the severe effects aren't projected for many decades, by which time I think there is a good possibility of effective remediation technologies. Still, even if rising ocean levels were the only consequence of global warming, the problems caused are at least somewhat annoying.

      Coal plants have many negatives besides carbon dioxide emissions, such as sulfur particulates (reduced but not eliminated by scrubbing) and large volumes of toxic waste. These problems cost society in ways that don't show up on power bills. The French seem to find nuclear power affordable and, since it is, I think coal should be abandoned for electricity. Other power sources may be feasible now or in the near future, and these could turn out to be preferable to nuclear, but in any case I think we should commit to a non-coal future now!

      --
      a,e,i,o,u and sometimes w and y (at be if of up cwm by)
    4. Re:Only helps a little by hawkfish · · Score: 1
      This also neglects the issue of "How much carbon does mankind produce" vs. "How much carbon does nature produce." (It may turn out that natural production of CO2, including volcanos, dwarf any human contribution).
      Fortunately, this issue has been heavily studied and the answer is that human contributions dwarf natural production.
      The research in that area ends up reporting different results depending on who is paying the scientist's bills. (And its easy to find criticism about scientific climate models and data collection methods.)
      This is true for studies funded by the energy industries, but not for independent researchers. And if you think that independent researchers are "under pressure" to produce pro-warming results, then why are so many energy industry grants going begging? (And as for criticism being easy to find, criticism of just about anything is easy to find - insert your favorite conspiracy theory here. Intelligent criticism is much harder to come by.)
      If global warming is due to CO2, there is the question of how much it costs to reduce CO2 emissions, and if that money could be better spent on other environmental causes.
      Sure, these are policy/value questions. But consider that the consequences of global warming include rising sea levels and most of the world's population lives near sea level.
      Due to the above, I'm rather skeptical about most proposals to limit global warming. The data isn't there to justify the expenditures, especially considering that (1) sooner or later, climate change will happen naturally sooner or later and (2) if global warming will happen, it will probably have a net benefit on many countries' economies.
      WRT (1), yes "climate change will happen", but the rate of change is unprecendented and we may well not survive it. WRT (2) see my previous comment about drowning lowlands. Your country's economy may do well, but billions may literally die so you can have that wealth.
      I'd rather see the money spent on tasks with a more tangable benefit. We know what will happen if we spend $1M to set aside a wildlife area. We don't know what will happen if we spend $1M to put X units of CO2 under the sea floor.
      And if your wildlife area becomes a desert in 50 years, your $1M has been completely wasted.
      --
      You will not drink with us, but you would taste our steel? - Walter Matthau, The Pirates
    5. Re:Only helps a little by Anonymous Coward · · Score: 0

      Using less energy won't help in the long run. Waste etc. is still going to accumulate, albeit slower.

      We really do need clean enery. And you are right even windmills affect the climate, but the whole idea of all the green energy options is to make the effects so minuscule that effectively they are clean.

    6. Re:Only helps a little by Bastian · · Score: 1

      Three words: conservation of energy.

      We'll get truly clean energy the same day we develop perpetual motion machines.

  7. Comparable to Nuclear? by kingofalaska · · Score: 2, Informative
    From TFA: ""This is what this funding will allow us to assess in great detail. It's likely the costs are comparable with nuclear power and renewables." "

    Depends on location. From my post "Rural Alaska nuclear power gets legislative backing":

    "Because of Galena's inaccessibility and the necessity to ship diesel fuel by barge, residents pay from 20 cents to $1 per kilowatt hour, while the national average is less than 9 cents. With nuclear power, residents could pay a third of what they now pay to power their homes, Yoder said.

    If it's feasible in Galena, nuclear power could be used to lower energy costs throughout rural Alaska, state lawmakers said.

    "Nuclear power is something folks might frown on, but it's self- contained," said House Speaker John Harris, R-Valdez. "It has a lot of potential for areas" that have high fuel costs.

    KOA

    1. Re:Comparable to Nuclear? by Martin+Blank · · Score: 1

      I'm a big nuclear enthusiast, but isn't the manufacturer offering to pay for the unit itself, with the residents of the town paying for the upkeep and other long-term costs? Doesn't that skew the price expectations?

      --
      You can never go home again... but I guess you can shop there.
    2. Re:Comparable to Nuclear? by kingofalaska · · Score: 1
      Excellent questions, none of which I have an answer to. I have been following this since the first announcement, which I believe was also posted here on slashdot.

      Any insights are appreciated.

      KOA

    3. Re:Comparable to Nuclear? by ZosX · · Score: 1

      Well it has to remain profitable or at the very least break even to make it worth the while of the electrical company. I'm sure a new nuclear facility would cost a great deal of money to erect, and unfortunately I don't have any recent American examples to give costs for since, well, we haven't built a new nuclear reactor in some time. The company is selling you electricity at whatever it may cost them to bring it to you and yes that includes building of facilities, upkeep, line maintenence, etc. Given the forcasted demand on the new nuclear facility, it should hopefully have enough customers to support itself as well turn in a tidy profit. In case you just woke up from a long sleep, this is how companies work. Now that I am thinking about it I can't even believe that I just answered such a retarded question.

    4. Re:Comparable to Nuclear? by Martin+Blank · · Score: 1

      You completely missed the point.

      The manufacturer has offered to pay without recompense for the construction and installation of the unit, and then the town picks up the operating costs, essentially getting the plant for free in order for the manufacturer to get real-world experience and feedback, and some marketing. This represents an artificial depression of the price of the reactor and hence the electricity prices, because the town isn't paying for what is clearly a very expensive part of the whole plan.

      This kind of thing skews the numbers associated with the reactor to such a degree as to make the electricity price very misleading.

      --
      You can never go home again... but I guess you can shop there.
    5. Re:Comparable to Nuclear? by falconwolf · · Score: 1

      This kind of thing skews the numbers associated with the reactor to such a degree as to make the electricity price very misleading.

      Anytime the organization, in this case the power comapany, doesn't bare the full costs of the product prices are skewed. If the company isn't able to pay the costs then the project isn't economically feasible and they want subsidies or other government guaranties of profit. While I may ask for assistance to start a business, I should be able to pay it back and still make profits. If I can't I shouldn't ask for a handout, it's still welfare. And yes I do hope to start my own business, without said government assistance.

      Falcon
  8. Hmm by Knara · · Score: 1

    Wasn't this a plotline in some old Seagal movie?

  9. A dangerous idea by B.D.Mills · · Score: 2, Interesting

    The idea of hiding the CO2 underground makes me uneasy. There's no guarantee that the CO2 is going to stay put. Suppose an earthquake ruptures the chamber. What then? If the CO2 comes out, it will kill anyone in the vicinity through asphyxiation.

    http://www.snopes.com/horrors/freakish/smother.asp

    Google for "carbon dioxide lake deaths" to learn more on why this is a dangerous idea.

    --

    The only thing necessary for the triumph of evil is for good men to do nothing. - Edmund Burke
    1. Re:A dangerous idea by Curmudgeonlyoldbloke · · Score: 5, Funny

      Indeed it is, what with the North Sea been one of the most heavily populated areas of Europe, and one of the most seismically active.

    2. Re:A dangerous idea by gl4ss · · Score: 1

      uhh.. like the other replier already mentioned..

      nobody lives there, apart from the crew. there's not that much quakes either. and they could have figured out pockets where they can push it to that wouldn't release it all in one go even if shit did hit the fan.

      --
      world was created 5 seconds before this post as it is.
    3. Re:A dangerous idea by Anonymous Coward · · Score: 0

      If the CO2 comes out, it will kill anyone in the vicinity through asphyxiation.

      Well, that's the plan anyway. But even the best laid plans of mice and men....

    4. Re:A dangerous idea by bill_mcgonigle · · Score: 1

      Maybe you could create methane from the CO2 (bacterially?) and store it as methane hydrate ice on the sea floor. Worse case you sink a few ships or airplanes. but RADAR might be able to warn against it.

      --
      My God, it's Full of Source!
      OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
  10. Ironically... by mister_llah · · Score: 2, Insightful

    Nature came up with its own long term carbon storage system long before we did.

    It's called "diamonds"

    --
    MoM++ - A Classic Expanded - [Master of Magic 1.5]
    http://mompp.sourceforge.net/
    1. Re:Ironically... by eraserewind · · Score: 1

      It's called "life"!

  11. Reminds me of Futurama [Not a stupid quote] by Anonymous Coward · · Score: 0

    That episode with the giant ball of garbage that New York launched into space as "Long-Term Storage", but fell back towards New New York a thousand years later. Sound like a possibly similiar situation.

  12. Idea! by Anonymous Coward · · Score: 1, Insightful

    Why choose to begin fixing our problems when we can instead sweep them under the rug? Or in this case, the ocean? It's not as if it'll still be there in 20 years when we've run out of storage space!

    Anyway, my point is that the effort here is aimed at the problems caused by inefficient and polluting industrial processes - rather than fixing those processes instead, which would be a much more desirable goal.

    I'm also wondering how much this will figure into any carbon emissions trading schemes that are going on in Europe..

    1. Re:Idea! by Anonymous Coward · · Score: 0

      >inefficient and polluting

      You don't seem to understand how industry works. It's the non-polluting processes that are inefficient. Often it's cheaper to just pack up and move to another country when environmental laws get too strict rather than to cripple your plant.

  13. Oh yes! by some+guy+I+know · · Score: 0, Offtopic
    At first I thought it said "Long-Term Carbon Shortage"... I was like, WTF?!
    I read it correctly, but I interpreted the headline to mean archiving information (long-term backups, etc.) using buckyballs or something similar.
    My reaction was "Cool!".
    A DVD/CD made from nanotubes would be able to withstand much higher rotation speeds, meaning faster I/O.
    Imagine a 200x drive!
    You wouldn't be able to have them in laptops, though, because of the gyroscopic effects.
    --
    Those who sacrifice security to condemn liberty deserve to repeat history or something. - Benjamin Santayana
  14. Humans? by phorm · · Score: 1

    Humans aren't the only organisms that will suffer from CO2 suffocation, you know...

  15. nuclear power by william_w_bush · · Score: 1

    sorta ot, but somebody mentioned "nucular" powa. why don't they make nuclear plants underground? can increase efficiency because waste heat can be recylced, would vastly limit contamination risks, all you need for inputs and outputs are a uranium elevator (one for ppl too) and cables for power, and if anything goes wrong just slam a 50 ton lead slab over the intakes and outputs, problem solves itself.

    thinking some of the more stable coal or ore mines could be used for this, but it beats the HELL out of putting it it new jersey (im guessing when they designed 3-mile island they figured nobody'd notice).

    oh, also of all the reactor plants, nuclear plants can be the smallest, i mean christ they have rather strong reactors on submarines with long duty cycles, just pull a few on the decomm'd LA and BF SSN and SSBN's and you could power a small city for cheap, those things are relatively low-maintanance, tho they do have integrated cores which means after the first overhaul you'd have to replace them (which you do for some plant reactors anyway).

    anyone else want to add to this?

    --
    The first rule of USENET is you do not talk about USENET.
  16. costs of Nuclear? by falconwolf · · Score: 0

    "Because of Galena's inaccessibility and the necessity to ship diesel fuel by barge, residents pay from 20 cents to $1 per kilowatt hour, while the national average is less than 9 cents. With nuclear power, residents could pay a third of what they now pay to power their homes, Yoder said.

    I'd be that if the total costs of nuclear power were included it would be more than a third. The government subsidizes and protects the nuclear power industry. If they had to compeat in a true free market economy the costs of nuclear power would be much higher than they are now. Especially there in Alaska I'd bet wind genies could hold their own in a free market. There's potential for more power from wind in Alaska than there is in Minneasota, yet MN generates several gegawatts from wind, and continues to add capacity, Minnesota's wind-power industry is picking up speed. In Oregon, Windfall from the Wind Farm Sherman County, Oregon, 5 wind projects generate 255 Megawatts.

    "Nuclear power is something folks might frown on, but it's self- contained," said House Speaker John Harris, R-Valdez. "It has a lot of potential for areas" that have high fuel costs.

    No it isn't, with current technology nuclear power generates toxic and radioactive waste with half lifes of millions of years. New technologies such as pebble bed modular reactors, PBMR are reducing risks but those hazardous wastes still need to be stored somewhere.

    Falcon
  17. Don't sequester CO2: grow food in space by Randym · · Score: 2, Interesting
    The energy required to compress CO2 and then pump it underground leads to the generation of yet more CO2, because the process is not (and can never be) 100% efficient.

    What we *need* is giant balloons (filled with sunwarmed gaseous CO2) carrying food-bearing plants to float in the atmosphere. Using the abundant solar energy, the plants can be kept at the proper temperature to grow; they can be grown hydroponically using sun-melted frozen water (from the same place as the frozen CO2); they are right there in the sunlight; and the frozen CO2 all around them can be melted and fed to them (thus generating oxygen in the process, which, when bled off, can, at those altitudes, be zapped by cosmic rays and create more protective ozone.)

    When the food-bearing plants are mature, segments can be split off and ferried directly by remote control back down to places on earth where famine is epidemic, thus bypassing corrupt governments. The fuel would be methane generated by using sunlight and water to compost non-food stalks and roots.

    Seriously. Except for the obvious lack of political will to do this, it is only an engineering problem. At one stroke it will solve the excess-CO2 problem AND the lack-of-ozone problem AND food shortages anywhere on the globe.

    Come on, slashdotters: find something technically wrong with this proposal. Can you?

    --
    DNA is a Turing machine. You, however, being dynamic and emergent, are not.
    1. Re:Don't sequester CO2: grow food in space by freeweed · · Score: 1

      CO2's heavier than air. Can you actually do hot-air ballooning with just the warmth generated by the Sun? If so, why do balloonists have those immense heat generators on board?

      --
      Endless arguments over trivial contradictions in books written by ignorant savages to explain thunder in the dark.
    2. Re:Don't sequester CO2: grow food in space by Anonymous Coward · · Score: 0

      What's wrong:
      * CO2 is too heavy, about 50% more heavy than N2 and O2. (44 vs 28 or 32, IIRC)
      * There's no frozen water or frozen CO2 up there.
      * It's too cold.
      * That much UV isn't good for plants either.
      * Balloons degrade due to UV
      * Flying food down would be quite expensive. There's enough down here, famine is really a distribution problem.
      * Dumping a few kilos of O2 won't cancel the NOx
      created by flying food down.
      * You need quite a lot of food to feed a billion people. Like a million square kilometers.
      * How much of that is coming down unplanned due to malfuncioning (micrometeorite hits balloon?)?

      The idea gets a lot better if you propose to just drop that excess plant material. Leaves don't burn up when they fall from a tree, or somewhat higher.

    3. Re:Don't sequester CO2: grow food in space by Randym · · Score: 1
      CO2's heavier than air. Hmmm. Well, then we'll never have a problem with CO2 as a greenhouse gas because it will never rise above ground level!

      I joke. Actually, you are -- as you know -- correct. Let's substitute, then, another gas: how about methane (CH4)? That's about 1/2 the density of air. Sure, helium or hydrogen would be better, but I wanted something 1) readily available which 2) didn't incur much of an energy cost to create it (as, say, pure hydrogen would). CH4 is good (although admittedly flammable) because here is a use of a *worse* greenhouse gas than CO2. And it remains gaseous down to 191 K., which is important in the low temperature environments up there; being able to *be* heated by radiant solar energy would be rather handy, as it would keep the CH4 from liquifying.

      Furthermore, I am not talking about hot-*air* balloons; I am talking about closed balloons designed to go up into the high atmostphere *where the CO2* is, which can then be used to grow the plants.

      I know why I used CO2: I was thinking "well, air is a liquid" with one part of my brain, and then I visualized CO2 bubbles rising through liquid. And if only air WERE water, I would have been right. But it isn't, of course. There's a difference in density of about 2 orders of magnitude or so. D'oh!

      --
      DNA is a Turing machine. You, however, being dynamic and emergent, are not.
  18. Extremely Long Term Nuclear Solution by hicksw · · Score: 1

    Convert that nasty carbon to lovely breathable oxygen:

    Carbon (6C12) + alpha (2He4) ==> Oxygen (8O16)

  19. trees by mattr · · Score: 1

    Trees do a pretty good job of it too. That is why environmentally conscious pr departments of big companies laud burning wood since it just returns to the atmosphere the CO2 that was sequestered by the tree in the first place. The next step is NOT TO BURN THE WOOD! Just let it keep growing.

    Or even cut down the tree and plant another. You can even cut off most of the trunk and branches of some trees and you will get new trees coming out of the stump. Planting trees is one of the few ways I know that ought to require far less CO2 to plant than is sequestered. Pumping gas into a hole is not obviously going to sequester the gas as a solid, and sounds dangerous.

    1. Re:trees by Shotgun · · Score: 1

      Here's some more ideas along the same lines.

      Plant grass, havest it and pack it deep into closed limestone mines. (grass grows faster than trees can can be havested and transported more easily).

      -or-

      Burn the trees and bury the ashes (ashes == concentrated carbon)

      Either was, trying to seperate out the CO2 from the rest of the atmosphere and then phase change it to a solid so that it can be buried is just a stupid waste of money when there are cheap ways to accomplish the same goal.

      --
      Aah, change is good. -- Rafiki
      Yeah, but it ain't easy. -- Simba
  20. Carbon freeze by MS-06FZ · · Score: 1

    And here I thought this was going to be about how to haul smugglers off to Jabba's palace...

    --
    ---GEC
    I'm but the humble pupil, seeking to snatch the scratchbuilt pebble from the master's fully articulated hand
  21. Probably not by WindBourne · · Score: 1

    First off, bacteria already creates methane. These are bio waste compositers. But you now have something that is usable as a fuel. Rather than store it, it would be better to use it and simply cycle the CO2.

    --
    I prefer the "u" in honour as it seems to be missing these days.
    1. Re:Probably not by bill_mcgonigle · · Score: 1

      Sorry, I'm not getting your point. We know there are bacteria that photosynthesize and bacteria that produce methane, but are there bacteria that produce methane from carbon dioxide? I would surprise me if there weren't but I'm no expert.

      If you just burn the methane you have the CO2 back again, which is what they're trying to avoid. If you sequester it as anything but gaseous CO2 you have something you can use as a fuel, but as the grandparent said large deposits of gaseous CO2 are dangerous.

      --
      My God, it's Full of Source!
      OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
  22. Actually, .... by WindBourne · · Score: 1

    I have been wondering that if we create tents on the farm fields and pump CO2 in, if if would improve the crop yield and speed? One interesting aspect of it, is that we would be able to move the veggies to higher CO2 concentrations and somewhere down the road, perhaps move them to lower pressures. Perfect for Mars.

    --
    I prefer the "u" in honour as it seems to be missing these days.
    1. Re:Actually, .... by Randym · · Score: 1
      ...if we create tents on the farm fields and pump CO2 in, if it would improve the crop yield and speed?

      This is a well-known phenomenon in *highly controlled* environments like greenhouses, where all possible growth variables are controlled, and insect predation is minimized. See this. As a global phenomenon, however, it is likely to lead to higher foliage growth without necessarily an increase in yield. But I guess we'll never know unless we do the experiment. Oh, wait... =8^O

      The 'lower pressures' point is intriguing. This could definitely be a problem Up There, affecting transpiration, for instance. On the other hand, all other factors being equal, it *could* lead to inceased internodal growth, and thus bigger plants. I hadn't taken decreased pressures into account, assuming a closed environment that had "normal" [sea-level] air pressures. Presumably you could pressurize the environment to whatever you want, assuming a sufficiently rigid external structure that wouldn't break under the pressure differential between 'inside' and 'outside'.

      And your point about using interatmospheric conditions to adapt plants to the growing conditions on other planets is very interesting. I smell a scifi novel -- or a NASA grant --in there somewhere.

      --
      DNA is a Turing machine. You, however, being dynamic and emergent, are not.
    2. Re:Actually, .... by WindBourne · · Score: 1

      After following the link, the first thing I thought of was what a waste that they burned fuel to increase the CO2 in the greenhouse. I wonder how many greenhouses actually do this.
      One idea that occurs to me, is that a useful tool would be something that can seperate CO2 from the air. But it has to be small and inexpensive. It should be able to be patented, which would allow a small business to create something is needed and helpful to the environment.

      --
      I prefer the "u" in honour as it seems to be missing these days.
    3. Re:Actually, .... by Randym · · Score: 1
      One idea that occurs to me, is that a useful tool would be something that can seperate CO2 from the air.

      OK, then see this. Other people have been thinking along the same lines. Apparently, it is well-known how to do a 'low-grade' scrubbing of the air, using oxide reduction, but the holy grail is a 'high-grade' scrubbing. So far, it appears that it will be both large and expensive. It is clearly worth thinking about.

      Personally, I was thinking first of a nanoscale centrifuge, since, as the other poster pointed out, CO2 is heavier than air. But utilizing a well-known and naturally evolved technique -- plant life -- is what led me to grow!food!in!space!

      --
      DNA is a Turing machine. You, however, being dynamic and emergent, are not.