Ice Island (IMAGE) University of Delaware Caption This graphic shows an ice island twice the size of Manhattan that has calved from Petermann Glacier off northern Greenland. Credit Courtesy of professor Andreas Muenchow, University of Delaware 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.