Fungi Accelerated Demise Of World’s Forests In The Past - Irish Weather Online

http://www.irishweatheronline.com/news/nature/fungi-accelerated-demise-of-worlds-forests-in-the-past/30060.html

The so-called Permian extinction likely was triggered by immense volcanic eruptions in what is now Siberia. The huge amounts of gas and dust thrown into the atmosphere altered global climate, and some 95 percent of marine organisms and 70 percent of land organisms eventually went extinct.