Tech

36, 000 gigatons of carbon heralded history’s biggest mass extinction

Enlarge / Some of the massive volcanic deposits that are part of the Siberian Traps. (credit: MIT ) The end-Permian mass extinction was a big deal. It was the largest bulk extinction event ever and occurred 252 million years ago. A whopping 90 percent of all marine species and around 70 percent of their terrestrial […]