• Rob Bos@lemmy.ca
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    7 hours ago

    The point is that it’s a passive process, not an active one. No need for pumping.

    Water is so much denser than air that you do get more exposure time per unit time.

  • SabinStargem@lemmings.world
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    16 hours ago

    I guess Trump could add a new canal to the Red Sea, as per an old proposal involving nukes to dig it. Considering this administration, I wouldn’t be surprised at all.

  • peoplebeproblems@midwest.social
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    2 days ago

    I think y’all are missing the point here.

    It’s really to justify the production and testing of an insanely large planet altering weapon that would create a really cool firework.

    • juliebean@lemm.ee
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      2 days ago

      wow, and the bomb only needs a yield of 1620 times the largest nuclear bomb ever deployed.

        • frezik@midwest.social
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          1 day ago

          And states the main problem, with a deep ocean detonation, would be fallout.

          I’m not sure that’s right. The shockwave of a bomb that insane could easily have seismic and tsunami effects. Probably be the biggest mass of dead fish floating at the surface, too.

          Should probably talk to some geologists first.

        • juliebean@lemm.ee
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          2 days ago

          perhaps, though you’d have to dig a much bigger hole. however, the paper points out that the sheer military uselessness of such an enormous bomb would be crucial to making it legal or politically feasible. the international community would be understandably sus of anyone wanting to make 1620 tsar bombas.

    • sober_monk@lemmy.world
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      2 days ago

      Thanks for the link, interesting read! I know that a good paper is succint, but honestly, I thought that making the case for a gigaton-yield nuclear explosion to combat climate change would take more than four pages…

  • gravitas_deficiency@sh.itjust.works
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    2 days ago

    I mean… if we’re being honest, the long-term effects of global thermonuclear war would be (very eventual) carbon sequestration in tens to hundreds of millions of years, and then we’ll renew our oil reserves! We of course won’t be around to use them, seeing as we’ll have been sequestered into the oil.

    • Eheran@lemmy.world
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      2 days ago

      Can we get new oil actually? I thought we now have organisms that can break down every organic matter and thus it can not really accumulate anymore?

      • frezik@midwest.social
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        1 day ago

        There’s an abiotic pathway that creates new oil geologically. It’s a very small amount.

        The theory is popular in Russia, where it’s claimed to be the main way oil is produced. That’s complete bullshit. It turned out there is some, but not enough to matter.

      • Tar_Alcaran@sh.itjust.works
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        2 days ago

        Oil actually comes from aquatic life (mostly plankton) that sinks to the sea floor and gets buried, squeezed and heated. Oil still forms today, but it’s a process of millions of years.

        Coal is formed from plants, and that does indeed require something doesn’t eat it first. Swamps, for example, help a lot, letting the fallen trees sink down where most stuff can’t eat it. Peat can also form into coal. Coal forms even slower than oil though, and it’s much rarer, but it also doesn’t require an ocean, so it’s often more accessible for us land-living humans

        • Eheran@lemmy.world
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          2 days ago

          Coal is much rarer than oil? I have to look that up, I always thought there is far more coal.

          Nope, there is about 3x more coal than oil.

          • frezik@midwest.social
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            1 day ago

            IIRC, all that coal comes from plant material from before there were microbes that can break down cellulose. Meaning that while it’s possible to regenerate oil over millions of years, coal cannot.

            So yes, there may be more of it now, but when we burn it, it’s gone forever.

      • TeamAssimilation@infosec.pub
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        21 hours ago

        Someone needs to work out the inheritance fallout. With our luck it will still fall within the same families, or the government.

        • psud@aussie.zone
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          7 hours ago

          Government is fine. Remember money is just IOUs from the government, if billionaires assets were sold and the money went to government it would be deflationary, all money in circulation would become more valuable

  • Pennomi@lemmy.world
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    2 days ago

    Seems half-baked. Well unbaked really. They make a shit ton of assumptions that I’m not sure are true.

    For example, why do they assume 90% pulverization efficiency of the basalt? Or is that a number they just pulled out of their ass?

    And does ERW work if the pulverized rock is in a big pile on the sea floor? Or would we have to dig the highly radioactive area up and spread it around the surface?

    And does the radioactive water truly stay at the site of the explosion? Or will it be spread through the entire ocean via currents?

    Cool concept but, like, maybe we should check the assumptions a little harder?

    • kozy138@lemm.ee
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      2 days ago

      Some people would literally rather nuke the planet than take a train to work…

    • TranscendentalEmpire@lemm.ee
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      2 days ago

      And does ERW work if the pulverized rock is in a big pile on the sea floor? Or would we have to dig the highly radioactive area up and spread it around the surface?

      Yeah… Doesn’t the carbon sequestering happen from rain absorbing carbon in the atmosphere and then attaching to the rock to mineralize it? Something tells me 6-7 km of ocean might impede that process.

      And does the radioactive water truly stay at the site of the explosion? Or will it be spread through the entire ocean via currents?

      Dilution is the solution…ocean big?

      • riodoro1@lemmy.world
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        2 days ago

        Dilution was supposed to be the solution to the whole greenhouse gasses emissions, turns out atmosphere not … that big.

      • Eheran@lemmy.world
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        2 days ago

        The ocean dissolves a large amount of CO2, which then, just like in the rain example, can react with minerals. It can react faster if there is more surface area of said minerals.

        • TranscendentalEmpire@lemm.ee
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          2 days ago

          Do you know if Co2 that dissolves into water is less buoyant, or is it held in suspension? Or is this relying on the sediment being suspended in the ocean for a while before being deposited back on the ocean floor?

          • psud@aussie.zone
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            7 hours ago

            They expect the pulverised rock to be spread by the blast and distributed on ocean currents, the CO2 is throughout the water column, it moves over concentration gradients, if one volume of water has 1g/L and another has 3g/L then CO2 will move from the 3g/L bit into 1g/L bit until they are in balance

            I think they hope the pulverised rock will be spread so it works quicker, not having to wait for CO2 to balance

          • Eheran@lemmy.world
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            2 days ago

            I am not sure if I understand you. Dissolved CO2 in water of like normal water. There is no crazy difference. If water can get to the rocks, so can the dissolved CO2.

            • TranscendentalEmpire@lemm.ee
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              2 days ago

              There is no crazy difference. If water can get to the rocks, so can the dissolved CO2.

              Oh, I was just pondering the efficiency. If Co2 is held in suspension and only the top layer of sediment is going to be exposed to the carbon in the water, and not to a degree of co2 more concentrated than normal.

    • Venator@lemmy.nz
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      2 days ago

      Also would it kill all the sea life leading to a large amount of greenhouse gas emissions from all the decomposing fish corpses? Does undersea decomposition release greenhouse gases?

  • Hikermick@lemmy.world
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    2 days ago

    Just spitballing here. These grand ideas good/bad practical/or not are the beginning of mankind learning how to geo engineer planets or moons. I’ll be long dead before I get proven right or wrong so it’s easy to spitball

  • smeg@feddit.uk
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    2 days ago

    Every proposal to save the world ultimately comes back to the plot of The Core