The Rise and Fall of the Dinosaurs: A New History of a Lost World: The Definitive Dinosaur Encyclopedia with Stunning Illustrations, Embark on a Prehistoric Quest!

by Steve Brusatte

And the rain was not able to remove some ten trillion tons of carbon dioxide that had been blown up into the sky with the soot. CO2 is a nasty greenhouse gas that traps heat in the atmosphere, and soon nuclear winter gave way to global warming.