The last days of dinosaurs during the Cretaceous Period, caused by a giant asteroid impact at Chicxulub off the coast of Mexico. | Stocktrek Images via Getty Images
Climate

The Asteroid That Killed the Dinosaurs Caused Catastrophic Climate Change

Wildfires caused by the Chicxulub impact propelled soot high into the atmosphere, which blocked out the sun’s rays and cooled global temperatures by 50 degrees Fahrenheit.

August 22, 2017
2:03 PM EDT