text: Global warming #39;s big chill plummeted, ushering in a deep freeze that lasted a century or more, researchers have proposed. earth and environmental sciences at the University of Illinois at Chicago, says he has evidence that this happened.
inputs: Global warming #39;s big chill plummeted, ushering in a deep freeze that lasted a century or more, researchers have proposed. earth and environmental sciences at the University of Illinois at Chicago, says he has evidence that this happened.