Too Much Carbon Dioxide May Have Caused Earth’s Worst Mass Extinction

So much for carbon dioxide being a “harmless” gas. The worst mass extinction in Earth’s history may have been caused by huge amounts of carbon dioxide that accumulated in the atmosphere and the ocean after colossal volcanic eruptions in Siberia 252 million years ago, according to a new study. AdvertisementIn addition to coating ancient Siberia … Continue reading Too Much Carbon Dioxide May Have Caused Earth’s Worst Mass Extinction