Future climate changes

"Our findings point to the difficulty of modeling accurate temperatures under higher CO2 in this critical region." And, there are many questions regarding the glacier's stability, the temperature thresholds that would cause radical glacier melting, and the rate at which it would change, according to Pagani. There are about 70 meters of vertical sea level rise represented in the ice sheets of Antarctica. "Previous reconstructions gave no evidence of glacier formation in that region, say the Yale scientists. "Our data demonstrate a clear temperature drop in surface-water temperature during the climate transition.

And, there are many questions regarding the glacier's stability, the temperature thresholds that would cause radical glacier melting, and the rate at which it would change, according to senior author Mark Pagani, professor of geology and geophysics at Yale. Another theory refuted by this study is the notion that ice-expansion also occurred in the ice sheets of Antarctica. "Temperatures in some regions, just before the Southern Hemisphere ice expansion, high-latitude temperatures were at least 10°C (about 18˚F) warmer than previously estimated and that there was an ice sheet where there had been subtropical temperatures before," said Co-author Matthew Huber of Purdue University. Detailed in the Northern Hemisphere during this time." Their conclusions are based on the distribution of specific organic molecules from ancient plankton that only lived at certain temperatures and were later preserved in ocean cores collected by the Integrated Ocean Drilling Program (IODP) and earlier marine programs that study Earth history by coring deep-ocean sediments and crust around the world.