Aerial View (IMAGE) Proceedings of the National Academy of Sciences Caption This is an aerial view of a lake on the Greenland Ice Sheet before (left) and after drainage (right). Credit Image courtesy of Thomas R. Chudley. Usage Restrictions None 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.