Earth Your future. Our mission. Feature Text Size Grow Text SizeShrink Text Size Average Rating: 3.8 / 5 (558 ratings) HELP HELP HELP HELP HELP HELP '); Satellites See Unprecedented Greenland Ice Sheet Surface Melt 07.24.12 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 4..