fungussa OP t1_j6nzwzi wrote
Reply to comment by czk_21 in A dire forecast: Scientists used AI to find planet could cross critical warming threshold sooner than expected by fungussa
Lol, what? The PETM caused a major disruption to global ecosystems and had a severe impact on ocean chemistry and marine life, where approx two thirds of marine species went extinct. https://www.pnas.org/doi/10.1073/pnas.2003197117
At a mere +2C there'll be multiple, simultaneous breadbasket failures, and at +4C large scale agriculture will largely collapse.
Unusual-Diver-8335 t1_j6pc97z wrote
>two thirds of marine species went extinct
over the course of ~1,000 years
Contrarily, planktonic foraminifera diversified, and dinoflagellates bloomed. Success was also enjoyed by the mammals, who radiated extensively around this time.
https://en.wikipedia.org/wiki/Paleocene%E2%80%93Eocene_Thermal_Maximum
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