One of greatest mass extinctions was due to an ice age and not global warming

via Climate Change Dispatchhttp://climatechangedispatch.com

(h/t Raining Sky) Earth has known several mass extinctions over the course of its history. One of the most important happened at the Permian-Triassic boundary 250 million years ago. Over 95% of marine species disappeared and, up until now, scientists have linked this extinction to a significant rise in Earth temperatures. But researchers from the […]

via Climate Change Dispatch http://ift.tt/2jXMFWN

March 6, 2017 at 10:22PM