Emily
Editor, Senior Moderator
http://www.nature.com/news/archaeageddon-how-gas-belching-microbes-could-have-caused-mass-extinction-1.14958
Archaeageddon: how gas-belching microbes could have caused mass extinction
Study suggests gene transfer led to sudden release of methane 252 million years ago, killing most life on Earth.
Chelsea Wald
31 March 2014