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.

  • kandoh@reddthat.comEnglish
    71·
    9 hours ago

    when i was a kid it was 6°C by 2100, but we have reduced this trajectory to 2.9–3.4°C

    • foenkyfjutschah@programming.devEnglish
      2·
      5 hours ago

      may be, but with the feedback loops fully contributing then, the 6°C goal will be delayed a few decades.

      and by the way, the political was to stop it at 1.5°C by 2050. nobody ever assumed 6°C an acceptable outcome.

    • prole@lemmy.blahaj.zoneEnglish
      2·
      6 hours ago

      Yeah… I dunno about that. The 2C was in An Inconvenient Truth, unless my memory has completely failed me. I think that’s when we hit the point of no return, and the “dominoes” start falling.