Sep 25, 2013 09:22 AM EDT
Ice Sheet Didn't Exist in Late Cretaceous Period: Climate Change Models Impacted
About 90 million years ago, a continental ice sheet first formed during the Last Cretaceous Period--or so scientists believed. Now, it turns out that this might not be the case. One researcher has discovered evidence that suggests no ice formed during this period, which could change climate models t...