Greenland Ice Sheet Melting at Dangerous Rate
July 26, 2012 Leave a Comment
These images provided by NASA show the extent of surface melt over Greenland’s ice sheet on July 8( left) and July 12 (right). Measurements from three satellites showed that on July 8 , about 40 percent of the ice sheet had undergone thawing at or near the surface. Fours days later, the melting had accelerated at an alarming rate and an estimated 97 percent of the ice sheet surface had thawed by July 12.
In the image, the areas classified as probable melt (light red) correspond to those sites where at least one satellite detected surface melting. The areas classified as melt (dark red) correspond to sites where two or three satellites detected surface melting. Almost every part of the Greenland ice sheet melted a small amount this month in a bizarre event that scientists had never witnessed before.