Mass extinction

Huge and widespread volcanic eruptions triggered the end-Triassic extinctionSome 200 million years ago, an increase in atmospheric CO2 caused acidification of the oceans and global warming that killed off 76 percent of marine and terrestrial species on Earth.

An eruption-fueled extinction?Enormous volcanic eruptions may have triggered the worst extinction in Earth’s history.

Timeline of a mass extinctionNew evidence points to rapid collapse of Earth’s species 252 million years ago.