Ocean Warming and Oxygen Depletion Linked to Ancient Mass Extinction

A Stanford-led study has provided strong evidence that rising ocean temperatures and reduced oxygen levels were the primary drivers of the Permian–Triassic extinction event, which eradicated 96% of marine species. This research offers the clearest understanding yet of how ocean life responded to the 'Great Dying' 252 million years ago. The findings serve as a critical warning regarding the potential impacts of contemporary climate change on marine ecosystems.