World GDP: $105.4 trillion USD

  • marcolo@poliverso.org
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    3 days ago

    @FlyingSquid
    “Scientists say…”
    All of them, are you sure?
    Geoengineering schemes are not agreed upon by many scientists. There are several types of geoengineering “solutions” and no agreement on any, just suggestions.

  • febra@lemmy.world
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    7 days ago

    Amazing. Instead of just… fighting climate change by not polluting the planet let’s just fill our entire atmosphere with diamond dust, because that’s the logical decision of course.

    • Eximius@lemmy.world
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      7 days ago

      It’s not really any different than usual dust, other than it is even more likely to scratch your phone (oh no!). The surprising thing is the bullshit price number, I’m sure it’s some brain-dead economist looking at the point-price for diamond and with great effort making a single multiplication.

      Edit: The study does note industrial diamond manufacturing, but doesn’t go into detail on why it’s so expensive for diamond powder, other than saying “it would require much more industrial diamond than is currently produced”… Which is just… Empty? Considering industry would change to account for such a drastic rise in demand.

  • TurboHarbinger@feddit.cl
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    6 days ago

    Let’s throw more carbon to the air, what could go wrong. Is not like it will get to our lungs and destroy everything from the inside.

  • AlphaOmega@lemmy.world
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    4 days ago

    Isn’t this very similar to the annuki and the Sumerian history. Where these aliens came to earth to mine gold to take it back to their planet and use it to save their atmosphere.

  • GHiLA@sh.itjust.works
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    7 days ago

    I’m still set on “we’re fucked” until I see some more hopeful news.

    When we are fucked and who is first fucked, and making sure I’m not that guy is what I’m trying to determine.

  • marcos@lemmy.world
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    8 days ago

    Of all the aerosols they could think about!

    No chance at all of a basically indestructible material not being destructed if absorbed by lungs (or gills) and leading to some disease. You don’t need to check. There’s no way this could go wrong.

    Or, rather… I believe lead is cheaper… Given how much people like to use it, maybe it’s a better option.

  • dogslayeggs@lemmy.world
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    8 days ago

    Yes, let’s just have everyone on Earth breathe in diamond dust all day every day. There’s no way that could be bad for our health.

    • PlantJam@lemmy.world
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      8 days ago

      There’s never been a case of something having different behavior or health effects just because of a tiny chemical difference (trans fat) or size difference (micro plastics), what’s the worst that could happen?

    • desktop_user@lemmy.blahaj.zone
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      7 days ago

      just wear masks for a few decades, potentially respirators, and probably add whole house air filtration if you want to take it off at night.

  • Diplomjodler@lemmy.world
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    8 days ago

    That amount sounds like total bullshit. Diamonds can be manufactured and once that is done at scale, it won’t be all that expensive. Even at $10000 a ton, five million tonnes would cost just 50 billion.

    • HubertManne@moist.catsweat.com
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      8 days ago

      These are not good ideas. Remember that global warming is just an overarching effect of pollution which we will still have. What diamond dust pollution effects will be, no one knows, but I doubt we want to find out.

      • WhatAmLemmy@lemmy.world
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        8 days ago

        The fossil fuel oligarchy would prefer to give all mammals on Earth emphysema than stop burning fossils, and do it for 10x the price.

    • Skua@kbin.earth
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      8 days ago

      That number is for doing it anually for 65 years. It lists roughly 18 billion per year for the cost.

      But besides that, I think you are greatly underestimating the cost of the diamonds. Synthetic ones are way cheaper than natural ones, yes, but there’s a lot of room between “natural diamond expensive” and “actually cheap”. Going by these prices https://www.diamondtech.com/products/categories/diamond_powder_price_list.html

      It’s $2.5 million per tonne. I assume you could get a cheaper price per weight if you’re buying five million tonnes of anything, but it’s still two orders of magnitude more expensive than you are guessing

    • jalkasieni@sopuli.xyz
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      8 days ago

      Firstly, it’s 5 million tonnes per year. For 65 years. Secondly, the cost is for a 65 year SAI program, including developing the tech and running the missions. Thirdly, this is all explained in TFA or the links therein.

    • BussyCat@lemmy.world
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      7 days ago

      $10000/ton is $5/lb from a quick google search they are about $250/lb for industrial diamonds. So 50* 50 or 2500 billion or 2.5 trillion with no idea if they can use run of the mill industrial diamonds or if there will be additional processing to get them into the aerosolized form also how are you going to launch them, and for how many years would we need to do it

  • john89@lemmy.ca
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    7 days ago

    The artificially-inflated price of the diamonds should be irrelevant in this calculation.