El Nino and Massive Volcanic Eruptions Triggered Mass Extinction of Life 250 Million Years Ago https://ift.tt/tfiuaeS El Nino and Massive Volcanic Eruptions Triggered Mass Extinction of Life 250 Million Years Ago New research suggests that a powerful El Niño cycle, fuelled by a massive release of carbon dioxide, may have contributed to Earth's largest mass extinction around 250 million years ago, during the end of the Permian period. Volcanic eruptions in what is now Siberia caused enormous amounts of carbon dioxide to enter the atmosphere, resulting in drastic climate changes. These …