Prof John Marshall (left), taking samples in Spitsbergen. Credit: Sarah Wallace-Johnson
by Sprep-Admin

Researchers at the University of Southampton have shown that an extinction event 360 million years ago, that killed much of the Earth's plant and freshwater aquatic life, was caused by a brief breakdown of the ozone layer that shields the Earth from damaging ultraviolet (UV) radiation. This is a newly discovered extinction mechanism with profound implications for our warming world today. There have been a number of mass extinction in the geological past. 

Original Article