Scientists say volcanic eruptions caused global warming and other changes in the environment that sparked the extinction of over 90% of species about 250 million years ago. Dramatic increases in the chemical element nickel from cooled magma at the time of the Great Permian Extinction are connected to volcanoes erupting in what is now Siberia, researchers say.
Researchers link ancient volcanoes in Siberia to mass extinction
Sign up for AAG SmartBrief
Research and technology news for geographers
Get the intelligence you need: news and information that is changing your industry today, hand-curated by our professional editors from thousands of sources and delivered straight to your inbox.