Dwindling Ice (IMAGE) University of Kansas Caption This is the retreat of the Columbia Glacier, Alaska, by about 6.5 km between 2009 and 2015. Credit James Balog and the Extreme Ice Survey. 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.