West Antarctic Ice Core (IMAGE) University of Washington Caption A freshly drilled section of the 2.1-mile West Antarctic Ice Sheet Divide ice core. Credit Mark Twickler/University of New Hampshire Usage Restrictions With credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.