• kmkz_ninja@lemmy.world
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    1 year ago

    I mean, we left the planet. We created art. We did some good, and life will diversify again after we’re gone.

    • Sterile_Technique@lemmy.world
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      1 year ago

      and life will diversify again after we’re gone.

      Here’s hoping; but that’s far from a safe assumption. The kicker about the changes we’re making to this planet is that a lot of them are positive feedback loops, so even if 100% of humans just got thanos-snapped out of existence RIGHT NOW, meaning a complete stop on fossil fuel consumption, deforestation, etc; the damage we’ve already caused will continue to get worse on its own with no further input from us.

      So how far can those feedback loops go until they’re broken naturally? They might stabilize; they might just carry on until this planet is molten.

      There will for sure be life after the last human dies, but given a few thousand more years, even the most resilient of critters could still be fucked because of us.

      • evranch@lemmy.ca
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        1 year ago

        they might just carry on until this planet is molten

        The odds of true runaway warming are very low, the planet has both been much hotter and had much higher CO2 levels in the past. The Holocene is actually a cool period, geologically.

        We’re just going to make it too hot to grow enough crops to feed the world.

          • kmkz_ninja@lemmy.world
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            1 year ago

            The lake Toba Eruption caused a 4°C drop in global temperatures, covered asia in inches to feet of ash, and may have taken the climate 1000s of years to recover.

            Even more extreme, the lava floods that created the Siberian Traps 250 million years ago raised ocean temps to 40°C, killed off 90% of all life, and might have taken millions of years to recover.

            We are tiny. The climate and the Earth are formidable. Sure, we might have the capacity to destroy all multicellular life on earth, but she’s recovered from even worse.

            We shouldn’t ever give up, but I think the earth is capable of handling even our worst fuck-ups.

    • jcit878@lemmy.world
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      1 year ago

      we did just waste a good few million years of evolution though (let’s say 65 million accounting for the rise of mammals). earth isn’t going to be habitable forever, from memory there’s less than a billion years left before the temp would increase with the expanding sun enough to make liquid water impossible. feels like we kind of shot earth in the foot a bit here

      • abbotsbury@lemmy.world
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        1 year ago

        65 million years isn’t that bad on a geologic scale

        As long as there isn’t a runaway greenhouse effect that turns Earth to Venus, life would almost certainly continue, with or without us.