The study reveals that an enormous El Niño weather pattern significantly contributed to climate chaos during the Permian-Triassic extinction, challenging previous volcanic explanations.
The mass extinction's severity was exacerbated by unusual ocean warming across low and mid-latitudes, which created inhospitable habitats for many species.
While volcanic activity was a significant factor in the extinction event, the role of this unprecedented El Niño suggests a need to rethink past extinction scenarios.
Evidence from this extinction event points to surprising complexities in how climate change and biotic responses interact, particularly in the fossil record.
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