The Theory That Volcanoes Killed the Dinosaurs Is Officially Extinct

For years, scientists have floated an alternative theory to explain the extinction of the dinosaurs—one involving extreme volcanism. It’s an intriguing idea, but new research seems to have finally put this competing explanation to rest. Sixty-six million years ago, all dinosaurs (except for birds) were wiped from the face of the Earth. Did the final blow come from devastating volcanic eruptions, or a catastrophic asteroid impact? To answer this decades-old question, researchers led by The University of Manchester reconstructed the average air temperatures of the 100,000 years preceding the extinction...