Snowfall in the Eastern Sierras (IMAGE) University of Michigan Caption As the planet's snow and sea ice cover shrinks, global warming is intensified to a degree greater than models have predicted, new research shows. Credit Mark Flanner 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.