Alaska Coastal Erosion (IMAGE) University of Colorado at Boulder Caption A new study led by the University of Colorado at Boulder indicates part of the northern Alaska coastline is eroding by up to 45 feet annually due to declining sea ice, warming seawater and increased wave activity. Credit Robert S. Anderson, University of Colorado 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.