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Global Warming Stopped By Adding Lime To Sea

Antiglobalism writes "Scientists say they have found a workable way of reducing CO2 levels in the atmosphere by adding lime to seawater. And they think it has the potential to dramatically reverse CO2 accumulation in the atmosphere, reports Cath O'Driscoll in SCI's Chemistry & Industry magazine published today."

33 of 899 comments (clear)

  1. Adding lime to sea water.... by jnaujok · · Score: 4, Insightful

    Adding ten million square kilometers of lime from Australia's outback to sea water...

    ...yeah, no chance for any unintended consequences here.

    --
    Life, the Universe, and Everything... in my image.
  2. Oh yeah! Interference FTW. by Anonymous Coward · · Score: 5, Insightful

    You know...

    Based on the success of introducing the cane toad, tamarisk, the bark beetle, the banana slug, the mongoose, or the brown tree snake!

    Any time humans screw something up, the best bet is for humans to go double-or-nothing.

    Sure beats efficiency, responsible building practices, responsible reproduction rates, or simply riding a bike to work! Surely, changing the pH, salinity, disolved o2, and turbidity of the oceans will have no unwanted effect.

    1. Re:Oh yeah! Interference FTW. by mr_mischief · · Score: 4, Insightful

      The bicycle production uses the same amount of energy to produce as driving the car how far? If the bicycle's parts used that much energy to mine, smelt, cast, assemble, and transport then how much more did the parts of the 1,200 kg car take?

  3. Whoa there... by Kenrod · · Score: 4, Insightful

    It's more sensible and cost effective for mankind to use technology to adapt to climate change rather than to try to change the climate. After all, some climate change isn't caused by man and can't be stopped. Witness the last little ice age, and the last ice age before that that glaciated much of the northern hemisphere.

    Eventually some idiotic scheme like dumping X in the oceans is going to cause a truly great disaster. We need to stop screwing around with the Earth. Climate science is still in its infancy.

    --
    Good heavens Miss Sakamoto - you're beautiful!
  4. Nevermind the obvious unknowns here by radiashun · · Score: 4, Insightful

    But what happens when one nation decides this is a great idea while another fervently disagrees? Water doesn't obey boundaries.

  5. Re:Sure... by Trails · · Score: 5, Insightful

    In deed this strikes me as the climatological equivalent to the following song: I know an old lady who swallowed a cow, I wonder how she swallowed a cow?! She swallowed the cow to catch the goat, She swallowed the goat to catch the dog, She swallowed the dog to catch the cat, She swallowed the cat to catch the bird, She swallowed the bird to catch the spider, That wriggled and jiggled and tickled inside her, She swallowed the spider to catch the fly, I don't know why she swallowed the fly, I guess she'll die.

  6. Re:Riiight. by gfxguy · · Score: 4, Insightful

    Now, I'm not saying this is a great idea, but I'm getting pretty sick and tired of people bashing scientific findings simply because of who sponsored them. Why is Al Gore's sponsored research any more compelling than Shell's?

    Instead of a knee-jerk attack on the messenger, why don't you discuss what's wrong with the research, like every one else ("lime" jokes aside) is doing?

    --
    Stupid sexy Flanders.
  7. Re:Anonymouns Coward by wile_e_wonka · · Score: 5, Insightful

    Science ignorance on the rise

    I love it when people think they know everything and don't even see if these scientists even considered the issue.
    So, correction:

    Reader ignorance on the rise.

  8. Re:Ocean of Acid by Svartalf · · Score: 4, Insightful

    Heh... Because of the CO2 we already have in the atmosphere, it's too acid right now. All they're doing is a process mother nature already does (Much like Thermal Depolymerization does with biomass and plastics to break it down into natural gas and sweet crude...). Strange as it seems, it might actually do some good- but it's a bold thing they're proposing.

    --
    I am not merely a "consumer" or a "taxpayer". I am a Citizen of the State of Texas
  9. Re:Depends on HOW the Lime is made... AND... by blueforce · · Score: 4, Insightful

    Only on /. does this:

    "Remembrances of my chemistry classes tell me this is not practical... "

    magically make one person more qualified than dozens of environmental scientists with PhDs.

    I feel better knowing that the /. crowd is on the job.

    --
    If you do what you always did, you get what you always got.
  10. Re:Sure... by timster · · Score: 3, Insightful

    Well, I guess, but we've really swallowed the cow already. Our best available science predicts dire consequences from current and future CO2 levels, so it's reasonable to look for potential fixes that may have other consequences that will need to be studied carefully.

    It's certainly good to address the problem at its cause, by releasing less CO2 in the first place, but there are practical limits to reductions and many methods used to reduce CO2 will have their own side effects. Even wind/solar would have SOME negative effects, some of which would likely be unanticipated.

    --
    I have seen the future, and it is inconvenient.
  11. Re:Sure... by WhiplashII · · Score: 3, Insightful

    You give away your bias too easily...

    If you really think global warming will kill you all, then any side effects are of secondary concern - go nuclear, kill all the dolphins be damned.

    If you think global warming is going to annoy us all, side effects are questions to be answered - go study, weigh the economics, look for good and bad in it.

    If global warming is your religion, side effects must be zero - you will not accept any solution not your own.

    --
    while (sig==sig) sig=!sig;
  12. Re:Sure... by Deathdonut · · Score: 3, Insightful

    Global warming is not going to kill us all (thought might make life miserable and kill alot of us), but an unknown side-effect that kills the ocean's algae might.

  13. Re:I Am A Chemist by magus_melchior · · Score: 4, Insightful

    Slashdot seems to have eaten the arrows in your equations, so here's a try using HTML entities:

    CO2 + H2O -> H(+) + HCO3(-)

    CaO + H2O -> Ca(2+) + 2 * OH(-)

    H(+) + OH(-) -> H2O

    Seems Slashdot has something against implementing some form of Unicode (and HTML 4 entity codes), so putting in → (right arrow) or pasting the equivalent character don't work. You'd think they would pass it onto the browser rather than simply deleting them...

    --
    "We are Microsoft. You shall be assimilated. Competition is futile."
  14. So this is stage three, "bargaining"? by boyfaceddog · · Score: 5, Insightful

    Based on the speed at which the we are progressing through the Kubler-Ross model of grief, the world governments should hit "acceptance" sometime around 2025. Then maybe we'll start hearing some sense out of people.

    --
    Here will be an old abusing of God's patience and the king's English.
  15. Re:The Wisdom of the Simpsons by Svartalf · · Score: 5, Insightful

    Unfortunately doing nothing isn't the answer either. Nor is anything that I've seen most of the people suggesting (Suggested alternatives to the polluting vehicles, etc. end up producing their own global warming inducing pollution, either at only a slightly LESS rate than we are now or at the same or higher levels- you just don't have it happening locally...) including the seeding of the oceans with iron filings to produce algal blooms, etc.

    While I'm not 100% on board with this, on the first reading, it's the first relatively "sane" thing that someone's suggested so far about the "global warming problem"- which is not to say I think we need to do it right away or that this is the sole answer.

    And, for the record, we've been doing the old saw about the lady or the Simpson's gag since the earlier days of man. Just being on this earth, we cause a disruption like no other... I don't see us doing any less anytime soon, I'm afraid.

    --
    I am not merely a "consumer" or a "taxpayer". I am a Citizen of the State of Texas
  16. Re:This scares the hell out of me by InterGuru · · Score: 4, Insightful

    Hey. This is not global warming, this is ocean acidification. The rise in CO2 in the last two centuries coincides exactly with the burning of fossil fuel. The acidification, which will kill of corals and other shellfish is an easily derived consequence of rising CO2.

    If you want to dispute the effect of CO2 on climate, fine. I disagree with you, but there are valid questions. There are no valid questions on ocean acidification.

  17. Re:This scares the hell out of me by clonan · · Score: 3, Insightful

    Umm...RTFA!

    The lime is being added to REDUCE the acidification of the ocean which will then better absorbe CO2...which will return the ocean to the current acidity and rate of CO2 absorption. The excess CO2 will generally precipitate out, collect on the bottom and form...lime stone.

  18. Cause and effect by bunratty · · Score: 5, Insightful

    What you're saying is that the release of carbon dioxide was not the cause of past global warming. It does not follow that the release of carbon dioxide cannot be the cause of global warming this time. If you show up to work late ten times in a row because of bad traffic, it does not mean that the eleventh time you're late it cannot be because your car didn't start. It looks like you could benefit from learning more about science.

    --
    What a fool believes, he sees, no wise man has the power to reason away.
  19. Re:Sure... by nomadic · · Score: 3, Insightful

    Everywhere else, nature kills the OLD... only in "land management" do the idiots kill the young.

    So your contentions are that these thousands-of-years-old trees only exist because of man, and nature would have taken care of them long ago, despite their having living thousands of years without "land management" and only "nature." Ok, do you see the logical fallacy here?

    And if you think CO2 regulation is the only function that trees fulfill, well that's just wrong.

  20. Re:Sure... by Tophe · · Score: 3, Insightful
    Yes, because all of those samples are from pre-industrial times. In those cases the earth warmed up a little, some CO2 was released, causing more warming, releasing more CO2, etc. (Yes, I know it's not as simple as that, a warmer earth has less ice and absorbs more light, and water vapor and other gas concentrations will change as well...)

    This warming we are experiencing now is due at least in part to humans creating CO2 by burning fossil fuels, not from CO2 naturally being released. We caused a significant increase in CO2 concentrations and CO2 has been known to absorb IR radition for over 100 years. Don't talk to me about CO2 lag, sunspots, or cosmic rays - show me the science that proves you can increase the concentration of a strong IR absorbing molecule (CO2) and not increase the temperature of the planet.

    RealClimate.org has a good discussion on CO2 lag for anyone interested.

  21. Re:Sure... by jcr · · Score: 4, Insightful

    I've dealt with plenty of GW deniers and creationists before, those equations are very good at identifying them.

    I see that you're practicing package-dealing, too. Frankly, you've got rather more in common with creationists than you would care to admit.

    -jcr

    --
    The only title of honor that a tyrant can grant is "Enemy of the State."
  22. Re:Sure... by nine-times · · Score: 4, Insightful

    You give away your bias too easily...

    If you really think global warming will kill you all, then any side effects are of secondary concern - go nuclear, kill all the dolphins be damned.

    Not necessarily. Imagine you had a black-widow spider crawling on your forehead, and your friend sees it, pulls out his gun, and prepares to shoot the spider. Would you say that, if you really believed the spider was going to kill you, you'd let him shoot, because side effects are a secondary concern? Or would you encourage your friend to consider the consequences before he pulled the trigger?

    There are times when the cure is worse than the disease, and lots of problems were begun with good intentions. Even the current ecological problems were caused by someone trying to fix an economic problem without considering (or else ignoring) the ramifications. If you're setting out to change the chemistry of our oceans, I'd say it's worth looking at all the angles.

  23. So.. lemme get this straight... by lena_10326 · · Score: 3, Insightful

    We're going to fix a weather problem, which may be cyclical, that we don't understand that may not be a problem because there may be solar interactions we don't fully understand as well as Earth core changes we don't fully understand by dumping lime into the ocean?

    --
    Camping on quad since 1996.
  24. Re:Sure... by jcr · · Score: 4, Insightful

    my arguments are based on science

    Really? So, tossing off terms like "deniers" when someone doesn't agree with you is a scientific argument?

    Look, let's suppose for a second that global warming is a problem, that people are causing it, and so forth. Do you think that you can possibly be part of the solution by getting nasty with anyone who isn't yet convinced?

    Bottom line, I could attack the arguments without prejudice but my experience has taught me not to waste the time.

    What you're doing is a waste of time. I'm sure you enjoy your holier-than-thou posturing, but it doesn't help.

    -jcr

    --
    The only title of honor that a tyrant can grant is "Enemy of the State."
  25. Re:Sure... by GameboyRMH · · Score: 4, Insightful

    True, but of the gases released by human activity CO2 is the main culprit, and the main one that needs to be "managed." To deny its role in global warming is just wrong.

    --
    "When information is power, privacy is freedom" - Jah-Wren Ryel
  26. Re:Sure... by omfgnosis · · Score: 3, Insightful

    Old growth is "sacred" because healthy forests are composed of more than trees, and old growth supports a much broader range of species than just itself, which new growth alone cannot do for a long time. But you're right. Growing and cutting new growth is not the solution to that. Stopping logging is the solution to that.

  27. Comment removed by account_deleted · · Score: 4, Insightful

    Comment removed based on user account deletion

  28. Re:Sure... by phulegart · · Score: 4, Insightful

    it is good to try to treat everything with a modicum of respect. The dividing line you draw in the sand between what you will show respect for, and what you won't, is subjective, and specific to only you. Someone else may come along and think that what you have decided not to show respect for, deserves respect. Who is right? While applying respect unilaterally gives you closer to a true moral high ground to work from.

    I respect those of a religious persuasion enough to actually take a look at their Big Book of Holiness, to attempt to point out to them where they are making their mistakes (if we are to disregard the old testament for the new testament, why follow the ten commandments.. and if we are to follow the ten commandments, why ignore the rest of the rules laid out in the old testament?)

    There is science to back up the probability that we are adding to global warming, but there is also science that shows that the Earth goes through normal periods of heating up and cooling down. I mean... who caused the global warming that brought us back from the last Ice Age?

    Understanding an issue is leading someone from ignorance to knowledge. One cannot condemn another for their ignorance. One can only condemn another for their lack of desire to leave their ignorance behind. All you can hope to do is educate and allow people to see the reason and logic behind the presented evidence. You cannot say that you are sick of dealing with thick-headed people and therefore you see no point in explaining yourself. If you can't be bothered to make an honest attempt at improving the situation, you are only making it worse.

    Personally, I think playing with our Ocean's chemistry is playing with fire... so to speak. I'd rather see a manmade increase in Plankton and Forests, and gain the benefit of the additional oxygen.

    But then, people would have to give up on living on their 4 acres of grass.

    --
    "I love deadlines. I love the whooshing sound they make as they fly by." -D. Adams
  29. Re:Sure... by Anonymous Coward · · Score: 3, Insightful

    science

    You keep using that word. I do not think it means what you think it means.

  30. Re:Sure... by Socguy · · Score: 4, Insightful

    Powerfull stuff sir,

    Somehow you manage to draw you enemies all together under the banner of tree hugging geniuses. Then, you ingeniously lump disparate environmental issues together. Next you demonstrate profound insight into the mind of nature. You follow all this up by advocating what, to the untrained eye, would seem like some random course of action unfettered with the burden of proof. But you're not done! Somehow you still manage to finish this sweeping literary tour de force by utterly decapitating that nebulous group of government worshiping tree-huggers doubtlessly responsible for countless environmental and economical catastrophes going back untold millennia!

    Rest easy tonight sir, secure in the knowledge that the world is better place you in it.

  31. Re:And finally... by MacDork · · Score: 5, Insightful

    It's nonsense, as anyone with sophomore chemistry and the ability to google up the quantities of CO2 we're talking about could tell you.

    That's why we ask people with more than a sophomore chemistry level.

    You are kidding... right? But look at that moderation! WOW! What really blows my mind is that all the climate change cultists that read here haven't even bothered to give the article a critical look and instead are content to make jokes about fruit flavoring. The article claims:

    The process of making lime generates CO2, but adding the lime to seawater absorbs almost twice as much CO2. The overall process is therefore 'carbon negative'.

    Gee, do tell guys. How does reversing CaCO3 -> CaO + CO2 magically use up twice as much CO2 as it releases? No chemical formula, no citation. Nothing. Jack squat. Hmmm, a little digging produces this.

    So... CaO + H2O + 2CO2 -> Ca + 2HCO3...

    Wait a second!? Doesn't 2H2O + 2CO2 -> 2H + 2HCO3...

    So they're really just substituting Ca(2+) for 2H(+) and this is just more cultist sleight of hand. "We can drop CaO in the water and be SAVED! It'll absorb twice as much CO2 as it releases! HEAL mother Earth and REJOICE!! Send your support for our computer modeling efforts in the form of a check to..."

    Besides, making lime takes LOTS of energy. Where is this pile of miracle lime going to come from??

    locating it in regions that have a combination of low-cost 'stranded' energy considered too remote to be economically viable to exploit — like flared natural gas or solar energy in deserts — and that are rich in limestone, making it feasible for calcination to take place on site.

    Great, the cultists are going to stripmine the F'in desert and haul it all the way to the oceans. I'm sure that process will be "carbon neutral." I'll bet it's really inexpensive and gentle on the desert ecosystem at the same time. <sarcasm />

  32. Re:Sure... by JebusIsLord · · Score: 4, Insightful

    Yeah.. okay. Propose a controlled experiment that we could perform. God knows hundreds, probably THOUSANDS of said experiments have already been done, but obviously since we can't build a viable climate model in the laboratory, we've turned to very, very complex computer models which do the same thing.

      You think it's rational to disregard hundreds of thousands of man-hours of research by climate scientists because "you've done computer programming?" What makes you an expert in this field? have you even read the research you're disputing? (hint: you couldn't read it all in a single human lifetime, so no you haven't).

    I understand why the OP is so frusterated... if you aren't an expert in the field, freaking defer to those who are! Quantum mechanics sounds pretty wacky too, but I don't question it because I defer to the experts. Anyone who doesn't in this day and age has a serious god complex.

    --
    Jeremy