Collapse of Earth's global water circulation system is already happening
www.earth.com
AMOC is like a massive ocean circulation conveyor belt that moves warm and cold water around the Atlantic. It's failing, and that's very bad.

Don’t think I need to summarize this one. This is bad news for everyone.

  • chaogomu@lemmy.worldEnglish
    313·
    1 day ago

    Humans are pretty resilient. Adaptable to any climate, even the mess of a climate we created.

    Now, I’m not saying that all 8 billion of us will survive.

    What I’m saying is, the minimum viable genetic population for humans is about 2000 individuals.

    • XIIIesq@lemmy.worldEnglish
      1·
      34 minutes ago

      Right. We survived the ice age with stone age tech.

      Not saying that this makes any of this OK but resilience is absolutely one of humanities highest spec traits.

      • Danquebec@sh.itjust.worksEnglish
        2·
        6 hours ago

        50 if you’re carefully planning breeding.

        2000 for a good chance to persist long-time under normal breeding conditions

      • chaogomu@lemmy.worldEnglish
        2·
        12 hours ago

        I’ve seen some of the same estimates. I settled on 2K because that’s what is estimated to have survived the To a supervolcano. Or rather the non-African population that survived.

        Homosapiens in Africa actually did quite well comparatively.

    • Random_Character_A@lemmy.worldEnglish
      112·
      1 day ago

      When food runs out for even a portion of those 8 billion, results are gonna be nasty.

      It’s hard to talk about climate initiatives when 1/3 of the planet is shooting eatch other. In worst case with nukes.

    • CitizenKong@lemmy.worldEnglish
      81·
      1 day ago

      Yep, there will always be humans as long as there is literally anything we can hunt/forage and eat.

      If that will resemble what we perceive as civilisation is another question entirely.