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Earth

Can We Fight Climate Change By Giving the Ocean an Antacid? (nbcnews.com) 109

Oceans naturally recycle carbon dioxide from the atmosphere at a massive scale, reports NBC News. So a Canadian startup named Planetary Technologies is "attempting to harness and accelerate that potential by adding antacid powder to the ocean." The theory goes that by altering seawater chemistry, the ocean's surface could absorb far more atmospheric carbon than it does naturally. The company is developing an approach that would turn the waste products from shuttered mines into an alkaline powder. They would deliver it into the water via existing pipes from wastewater treatment or energy plants to avoid having to build new infrastructure....

Planetary intends to recycle mine waste from a defunct asbestos mine in Quebec to produce pure magnesium hydroxide, which the company believes would help accelerate the ocean's carbon uptake ability in the areas where it's used. The strategy is inspired by the natural process of chemical rock weathering, where rain — which is slightly acidic — "weathers" or erodes the surface of rocks and minerals, and then transfers that alkalinity to the ocean via runoff.... [T]he company intends to start running small-scale ocean pilots — adding their antacid and measuring the change in carbon absorption — in Canada and the U.K. later this year.

But it's just one of "a growing number of strategies" to "leverage" the ocean in fighting climate change: In 2021, the National Academies of Science published a landmark report advocating further research into ocean-based carbon removal methods, in light of the growing scientific consensus that reducing emissions alone will not be enough to stave off the devastating effects of climate change. The report highlighted everything from large-scale seaweed farming to shooting lasers to electrochemically change the water's chemistry, while acknowledging that research on the viability and potential trade-offs of these strategies is nascent at best.....

One startup intends to spread ground minerals over beaches in Long Island and the Caribbean, in the hope that they will gradually wash away and alkalinize the beaches there. Another method that's gained traction involves using underwater pipes to pump up nutrient rich water from the ocean's depths to promote phytoplankton growth on the surface.

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Can We Fight Climate Change By Giving the Ocean an Antacid?

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  • by SuperKendall ( 25149 ) on Sunday February 12, 2023 @03:52PM (#63287487)

    I would say all efforts like his should be banned by all countries, there is not way the risk of permanent harm to the oceans and wildlife therein is not vastly worse than whatever benefit you are seeking.

    Same goes for all efforts toots crazy things into the atmosphere.

    If you want to figure out ways to reduce CO2, fine, but significantly altering ocean chemistry to absorb more CO2 will just end up destroying the thing you are "helping".

    • Comment removed (Score:5, Insightful)

      by account_deleted ( 4530225 ) on Sunday February 12, 2023 @04:15PM (#63287551)
      Comment removed based on user account deletion
      • Seriously, the title says it all. I'd rather pop pills than change my diet. But I don't read climate threads, I just come in to fart and leave. It is far, far too fucking late. Let's all fiddle and fart with fancy happy talk bingo, "recycling" [X] "toxic" [X] "waste" [X] "climate" [X] "sameole" [X] BING-fukking-O! No reason to stop now is there kids? The future won't come to visit, nope, we stopped the arrow of time too. Those folks that wish mass death upon the population of the world, (except their friend
      • by nasch ( 598556 )

        I think we need to do both. Maybe if we could halt all carbon emissions tomorrow we would be OK, but given how long it's going to take to do that (emissions are still rising; we haven't even hit the top of the curve yet), I think we need techniques to remove carbon from the atmosphere in addition. The difficulty is making sure that this isn't used as a free pass to keep emitting.

    • by Archtech ( 159117 ) on Sunday February 12, 2023 @04:50PM (#63287631)

      Absolutely right! The ocean is on the alkaline side already, and doesn't need any further alkalinity - not that puny efforts like this would have any noticeable effect.

      But the principle is vital. Individuals and corporations should NOT be tampering with the fundamentals of the environment. Tipping stuff into the oceans or the atmosphere, or scattering dust to screen out sunlight, is insanely risky.

      • by boaworm ( 180781 )

        Tipping stuff into the oceans or the atmosphere, or scattering dust to screen out sunlight, is insanely risky.

        And yet, that's what we've been doing for the last 200 years. It isn't long ago the common practice for getting rid of toxic stuff was to simply put it in barrels and dump overboard.

      • Indeed, that was the first thing I thought when I read this. Do they not realize how big the ocean is? That we're talking billions of tons of co2 per year? That's a lot of Tums.

      • Making the ocean more alkaline would counteract ocean acidification caused by climate change. In principle this wouldn't be a bad thing. The ocean is becoming more acidic and it's causing all kinds of problems with sea life. So this idea tackles two related problems at the same time...

        • by nasch ( 598556 )

          My question is, what other effects could this have? I would think pH is not the only factor at play, so does combining carbonic acid and a base really result in no side effects at all? Hopefully it does and this works, but that doesn't seem right.

          • Finding that out is... kind of the point of doing this research. I know nobody reads articles around here, but it was actually an interesting read.

    • Re: (Score:2, Insightful)

      by blahabl ( 7651114 )

      I would say all efforts like his should be banned by all countries, there is not way the risk of permanent harm to the oceans and wildlife therein is not vastly worse than whatever benefit you are seeking.

      Same goes for all efforts toots crazy things into the atmosphere.

      If you want to figure out ways to reduce CO2, fine, but significantly altering ocean chemistry to absorb more CO2 will just end up destroying the thing you are "helping".

      No. We need to learn geoengineering, and FAST. For all we know we're on the verge of next Ice Age, and for all we know it could happen any moment, because we do not even really know what triggers them. And we need to be ready, with the technology and science to stop that.

      You Gaia worshippers need to finally drop the ridiculous idea that there's some Mother Nature that will Provide and Protect if we only do not sin through industrialization. Newsflash: the Earth is just a ball of mud hurtling through space

      • "Doctor, all this heroin is making me so tired. Can you give me some meth to even things out?"

      • by gweihir ( 88907 )

        No. We need to learn geoengineering, and FAST.

        Not doable. No, really not. The problem is a few orders of magnitude too large and will become pressing a few 1000 years too fast.

        • by nasch ( 598556 )

          We've massively engineered the climate accidentally in a few hundred years; what makes doing it on purpose impossible in less than a few thousand?

          • by gweihir ( 88907 )

            Because doing something out of greed and stupidity that happens to have a global effect is vastly different from doing something _else_ that does not really make anybody rich in a coordinated and targeted fashion? The problem is not the base tech. The problem is managing the thing and getting people on board. And that is infeasible at this size.

    • all efforts like his should be banned by all countries

      Exactly this. With all these ludicrous idea's that I read about altering the atmosphere, dimming the sun or further alterating the oceans.. One idiot somewhere will proceed with some insane idea and experiment with our global ecology somewhere unless next COP puts a halt to such madness.

      Haven't we messed up enough already!? The solution to global warming has been well known for decennia and is very straightforward: an immediate and drastic reduction of e

    • by narcc ( 412956 )

      You're an expert in ocean chemistry now? Unbelievable...

    • According to https://www.worldometers.info/... [worldometers.info] on average we put 4.79 tons of CO2 in the atmosphere per person (babies included) in the world (in 2016)... For a western person this is easily double that amount. Let's round that of to 10 ton of CO2 per person who can finance to off set their carbon footprint. It is much more in USA and Canada and less in Europe and other developped countries. As burning 1 liter of diesel produces 2.7 kg of CO2, 10 tons of CO2 is the equivalent of 3700 kg of diesel fuel. The
    • There has to be some type of middle ground, to be able to test for efficiency and safety without changing the entire ocean's chemistry while we're at it. There are many places in the ocean that are in need of this remediation, that are too acidic right now for life and have basically become "dead zones". I those areas, there isn't really much left to damage. We need to research this in the standard scientific manner, not outright ban it nor go whole-hog in on the entire ecosystem at once.
    • That's the attitude that has made it impossible for people to enjoy the cleaning power of ammonia and the stain-fighting power of bleach at the same time. Why do you hate cleanliness?
  • by rsilvergun ( 571051 ) on Sunday February 12, 2023 @03:53PM (#63287489)
    As does common sense. At this point we're in the bargaining stage. Trying to come up with any excuse to avoid switching to renewable power. A handful of extraordinarily wealthy people as well as several nation-states have trillions of dollars in fossil fuel assets. Renewables are basically going to slash the value of those drastically.

    So expect to see a lot of articles about why now that we've all admitted the climate change is real and we're not pretending anymore that it's not we don't really need to do anything about it except wait for the scientists to come up with something. We certainly don't need to take any positive action against the cause of climate change. No siree.
    • Climate town. Check it out, this is an ongoing strategy.
    • by Z80a ( 971949 )

      If they were smart, they would be using the money to research battery technology.
      There will be a point where the battery technology will be convincing enough to get even small cities etc to move to it, and who get there first will be the next oil baron.

    • Trying to come up with any excuse to avoid switching to renewable power.

      Why would anyone need an excuse to not use renewable power? There's nothing more fashionable today than being "green" so there must be some barrier to entry. That barrier is cost, renewable energy costs more than fossil fuels. I'll see people point to the lower LCOE of wind and solar vs. fossil fuels to "prove" it costs more for fossil fuels but those numbers don't take into account that fossil fuels are a store of energy that we can draw from as we desire while wind and solar are energy sources we can o

      • Voters needed excuse not to do the massive subsidies from the government that would replace fossil fuels with renewable energy. Voters wouldn't do that because they're being told not to do that by extremely rich people who got that way by owning trillions of dollars in natural resources buried in the ground.

        At the moment we burn fossil fuels because we have in transition to renewables. It would be incredibly almost childishly naive to assume that the people who own all those fossil fuels aren't going t
        • Equating "green" energy with social justice bullshit can't happen without some help of those that are advocating for the "green" energy. I can agree that those invested in fossil fuels will do what they can to protect their investment but they can only do so much on their own. If the rest of the energy market shifts to something else there's nothing the fossil fuel energy market can do to stop them. They might try lowering prices but that only works so long as they can run their business at a loss, at so

      • by XXongo ( 3986865 )

        Why would anyone need an excuse to not use renewable power?

        Everybody who makes billions of dollars by not using renewable energy would.

        There's nothing more fashionable today than being "green" so there must be some barrier to entry.

        Yes, the fact that changing infrastructure takes time.

        ;;;A handful of extraordinarily wealthy people as well as several nation-states have trillions of dollars in fossil fuel assets. Renewables are basically going to slash the value of those drastically.

        If it is true that renewable energy is going to ruin the value of fossil fuel assets then the smart move would be to be the first one out.

        Huh? That makes no sense. If renewable energy is, in the future, going to ruin the value of your assets, the smart move is, first, sell as much fossil fuel now as you can, and, second, delay the time that your assets drop to zero.

        The last one still holding fossil fuel assets is the person that lost all their money.

        "Abandon a trillon dollars worth of assets" is not "the smart move."

        Oil companies aren't in the business of making oil, they are in the business of making money. If there's no money in oil then they will do something else.

        They already own trillions of dollars worth of assets. Abandoning them makes no sens

        • Why in the world do you think that people who make money by maintaining the status quo wouldn't want to maintain the status quo?

          I'm not claiming they would not want to maintain the status quo, I'm pointing out that they are powerless to maintain the status quo once someone offers a better alternative. I'm sure the people invested in the horse as a means of transportation were really interested in maintaining the status quo but at some point they could not compete with the automobile. The first people to realize that the future of transportation was the automobile would want to sell off their investment in horses while they were st

          • You don't seem to making a distinction between present and future.

            Nothing happens instantaneously. Oil companies have assets that are generating trillions of dollars right now. They are not going to abandon those assets, that would be idiotic. They are already paid for. If and when the transition to renewables happens, it will happen slowly. It won't be, all of a sudden the assets switch "from being worth trillions of dollars into being worth nothing."

            LIkewise the value of renewables won't suddenly switc

      • by AmiMoJo ( 196126 )

        Why would anyone need an excuse to not use renewable power?

        Good question, why don't we ask the guy who constantly makes excuses for diverting that investment to nuclear power instead? I think his name was AppleMan or MacDude or something like that.

    • Renewables are doing nothing of the sort. If they were so lucrative and inevitable, capitalists wouldâ(TM)ve been all over it. If you want to replace carbon based fuels, you need to replace it with something feasible, except all the green nut jobs have done is delayed and worked against the only solution we have. The oil industry has largely gone bust as the resource becomes more scarce, the power that once made up most of Canada, Northeast US and Texas is now held by a small group of big companies mos

      • by gweihir ( 88907 )

        And then there are people like you with big egos and zero understanding. People like you are what is going to eventually kill us all.

    • by gweihir ( 88907 )

      At this point we're in the bargaining stage. Trying to come up with any excuse to avoid switching to renewable power.

      Yep, pretty much. And time is running out fast and already _has_ run out on avoiding a really large global catastrophe that will last a few centuries. All we can do is avoiding making the catastrophe even larger, but there does not seem to be any real will to do so. None of the "magic" solutions that would allow us to continue as we currently do will work, ever. The human race does not have the capability for measures on this level. And it certainly does not have the insight or the will.

      • In my opinion, the idea of adding the antacid powder to the ocean to combat climate change seems like a promising solution. By increasing the amount of atmospheric carbon the ocean's surface can absorb, we can potentially reduce the impact of climate change on our planet. The fact that this approach is inspired by natural processes, such as rock weathering, makes it even more appealing to me as it suggests a sustainable solution. However, it is important to acknowledge that this is just one of several strat
        • In my opinion, the idea of adding the antacid powder to the ocean to combat climate change seems like a promising solution. By increasing the amount of atmospheric carbon the ocean's surface can absorb, we can potentially reduce the impact of climate change on our planet. You need to have a good understanding of natural processes, for starters, at least read the articles here https://samploon.com/free-essa... [samploon.com], and then draw conclusions and think about the rationality of the proposed approach. The fact that
  • It's not shit going into the ocean, it's fertilizer.

  • by HotNeedleOfInquiry ( 598897 ) on Sunday February 12, 2023 @04:05PM (#63287531)
    Possibly go wrong?
    • What if the plan worked perfectly? What if the ocean absorbed all the CO2 anyone could ever wish for? But at that point, can you stop adding alkaline to the ocean or would it just dump out all the extra CO2 at that point?
  • Ya, no ... (Score:5, Insightful)

    by fahrbot-bot ( 874524 ) on Sunday February 12, 2023 @04:15PM (#63287549)

    The theory goes that by altering seawater chemistry, ...

    Ya, there's no way we accidentally screw that up and end up killing all the algae, that produces about 70% of all the oxygen in the atmosphere (citations below), or killing something essential to the ocean food-chain. No way! /sarcasm

    Google: algae ocean oxygen [google.com]
    Understanding Global Change [berkeley.edu]

  • plenty of calcium carbonate on floor of ocean, if we back off with carbon pollution instead of messing up ocean chemistry even more then the acidity of ocean will decrease naturally and we'll quit the abnormal accelerated dissolving of that calcium carbonate (interesting topic in itself)

    making huge alkline spots on the surface of ocean isn't the answer, could cause disasters, ocean is supposed to have slight acidity though somewhat greater pH than present.

    • ...if we back off with carbon pollution...

      By "carbon" do you mean carbon dioxide - CO2 - the gas without which most life on Earth would die rapidly? The gas whose atmospheric concentration right now is near to the lowest it has ever been since life began? A higher concentration of which increases the fertility of plant life, allowing much more of it to grow in a given area - thereby providing more food for animal life?

      Yes, by all means let's get rid of it. If we want to wipe out all the mammals and a lot of other species.

      • An excess of carbon dioxide makes the ocean too acidic, damaging the shells, skeletons and exoskeletons of sea creatures, causing food chain issues.. This is already happening. I am more concerned about this than the exaggerated and 'hot model' climate change hysteria.

        https://www.nature.com/article... [nature.com]

      • What? Where is your evidence that atmospheric carbon is the lowest it has been since life began? Or even that it is lower now than it was 50 years ago?

      • Yes, we mean atmospheric CO2, which is higher now than ever according to the NOAA's Daily Global CO2 chart [www.co2.earth]. This chart goes back to 1880 [herdsoft.com], using both ice cores until about 1980 and then the actual atmosphere. No chart anywhere shows any "lowest it has ever been since life began". Extraordinary claims require extraordinary evidence, I show mine now you show yours. Your posts are full of absolutist language, "always", "never". They also seem pretty anti-vax, anti-government, and pro-climate destruction.
        • https://upload.wikimedia.org/w... [wikimedia.org]

          It's always easy to show that some quantity is increasing rapidly: it's just a matter of choosing the period to measure and the starting date. The Wikipedia article I cite above has page after page about how high atmospheric CO2 is, and how fast it's increasing. Only towards the end of the article do you come across a short section on the geologic record, which shows that during most of the time when life has existed, atmospheric CO2 was much higher than it is today.

          As for t

  • by dbu ( 256902 ) on Sunday February 12, 2023 @04:31PM (#63287587)

    The ocean becomes more acidic as it absorbs more CO2. So if you make it less acidic, the CO2 will evaporate again and increase the greenhouse gases in the atmosphere. We solve one problem to create or increase another. The only good way to solve the problem is to reduce the amount of CO2 released into the atmosphere not altering seawater chemistry...

    • by Anonymous Coward

      that depends on what you are adding. if it forms a solid precipitate with the CO2, especially something that can sink to the ocean floor, it removes CO2 from the waters in a pretty permanent way.

  • Preventative behavior is usually better than medication.
    When you apply medication to address a problem, you find that everything has side effects.
    Think of applying MgOH2 as medicating the environment.

  • Create your own man made private lake and test there

  • The "climate change deniers" weren't so much denying climate change as fearful of the downstream effects of the fear-mongering.

    And so here we are with a multitude snake oil peddlers stepping up with the quick fix. Can we really fundamentally believe that there is a single thing that can be done to slow/stop/reverse something so complex as the planet's climate? Dumping something in to the ocean, blocking sunlight, injecting something in to the atmosphere ... can these all seem more reasonable than altering

  • He can easily fix all your 'seawater chemistry' needs

  • WTF??? What they're describing are what they claim global warming, sorry, climate change are exacerbating. Sounds like the cure is worse than the disease.

  • And the rest go with us! Oops, we just recreated the Permian/Triassic Extinction and it all begins this year. Buckle in, the psychos are in control and you've never before seen what they yet have in store for us. Hehe. Toward a burning garbage pile in a handcart indeed.
  • It doesn't matter if everyone decides its illegal, someone is going to do things like this regardless. It's only a matter of time.

  • The problem with this plan is the mine was actually mining something to begin with or it would not be there. What they are mining is most likely a heavy metal or has heavy metals dissolved in the affluent waste water used for processing the product. This waste water has been described as battery acid filling up these open mining pits. If you attempt to put this water in the ocean you will be poisoning the entire food chain in much the same way that mercury is already doing.

    But if you find fairly pure carbo

  • And how does it affect sealife? The sea is already a highly sensitive ecosystem, so how would adding this antacid affect sealife itself. A lot of sea algea are critical to our survival, so dumping crap into the ocean might kill a lot of sealife, which in turn will eventually kill us all. And what will be the effect if too much of the antacid would be introduced into the water? What will happen if it works too good and runs out of control? There is still so much we don't know about the sea, that I think it's
  • Wow, guess we really screwed up huh? Welp, I'm sure if I just keep polluting, using different chemicals, it'll make everything better! WHAT COULD POSSIBLY GO WRONG!?

  • How much damage to the ocean will this cause? Nobody knows, but there probably isn't enough antacid to make any sort of measurable change. Just shows you that "climate scientists" will stop at nothing to get headlines and more funding.

Pascal is not a high-level language. -- Steven Feiner

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