A new model of ice friction helps scientists understand how glaciers flow
(PHYSorg.com Physics)

Since the early 20th century, nearly all of Earth`s glaciers have been retreating or melting. Glaciers cover 10 percent of the planet`s land area and contain 75 percent of our fresh water. Moreover, the water from melting glaciers accounts for nearly two-thirds of the observed rise in global sea levels. Despite the looming ecological consequences, glacier motion remains poorly understood because of a lack of research on how large ice masses sheer and flow in contact with bedrock.