Prof James Hansen says pace of global heating has been significantly underestimated, though other scientists disagree

Summary

Renowned climate scientist James Hansen warns that limiting global warming to 2°C is no longer possible due to underestimated climate sensitivity and reduced sun-blocking pollution from ships.

His study suggests warming could hit 2°C by 2045, increasing extreme weather and accelerating ice melt. The research challenges IPCC models, arguing for a higher climate sensitivity estimate.

Hansen calls for carbon taxes, nuclear energy, and geoengineering research.

He warns of an Atlantic ocean current collapse within 20-30 years.

  • AA5B@lemmy.worldEnglish
    24·
    6 hours ago

    Wow, wasn’t it just last year when they took the 1.5° target off life support and called it?

    Now the 2° is dead? Are we killing off 2.5° by summer?

    • HubertManne@moist.catsweat.com
      3·
      3 hours ago

      lots of folks said it was not going to happen. Last year was really recognizing there was absolutely no way its happening because it had actually passed it already so there is no way we were not passing it as we have. you will see something when we pass it about how now its impossible not to im sure soon enough.

      • AA5B@lemmy.worldEnglish
        5·
        2 hours ago

        The scary part is that seems to make no difference (to people, corps, countries). Has anyone changed anything based on passing that target? Will the anyone change their minds or behavior with this new projection?

        Maybe I’m just cynical with the disaster of the US elections - we were finally making a little progress, finally had reason to hope, but we just threw that away

    • PaleRider@feddit.ukEnglish
      9·
      5 hours ago

      All of last year, every time they said this month was the hottest on record, I kept saying “So far…”