Melting Ice (IMAGE) Oregon State University Caption A study of the demise of the Laurentide Ice Sheet that once covered Canada may help scientists better understand shrinking ice fields today -- like this melting ice margin in Greenland. Credit Courtesy of Oregon State University 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.