Great mass extinction caused by ice age, not climate change

via Climate Change Dispatchhttp://climatechangedispatch.com

During the Permian-Triassic boundary 250 million years ago, the Earth was enjoying some of its warmest temperatures when it was interrupted by a catastrophic cooling event. The new discovery shows how an Ice Age forced a massive die-off of most marine life, and not from global warming as once thought. It also shows the role geological events have played […]

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

March 7, 2017 at 08:02AM