(global warming news) Ice Core Secrets Could Reveal Answers to Global Warming - U.S. News & World Report

We can take this ice core, we can crush it up, we can remove the air that is inside of here, and find out how much C02 (carbon dioxide) is in here; methane and other greenhouse gases were in the atmosphere at the time when this ice core was formed," he said. White's recent analysis of Greenland ice cores, a National Science Foundation (NSF)-supported project, has revealed some important clues about rapid climate changes at the end of the last two ice ages, about 15,000 and again 12,000 years ago. Changes in sea ice, like the dramatic retreat being observed right now in the Arctic, could also have contributed to that warming thousands of years ago. The more heavy hydrogen you have, the warmer the cloud was that had the snow. But unlike those CSI shows, these scientists at the University of Colorado at Boulder's Institute of Arctic and Alpine Research (INSTAAR) don't come up with the answers to current climate change at the end of an hour.

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