Of Snow and Ice (IMAGE) Brown University Caption The position of the snowline on Greenland's ice sheet has been found to play a key role in setting the pace at which the sheet melts. The image shows bright-hued snow above the snowline and darker bare ice below. Bare ice absorbs more solar radiation than snow, and therefore melts much more quickly. Credit NASA 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.