Caption:
The Kangerdlugssuaq glacier and its ice stream, in an image from the Landsat-7 satellite. It is the largest outlet glacier on Greenland's east coast, discharging ice into the surrounding oceans. A recent study based on satellite observations revealed that over the past 20 years the ice melting in Greenland and Antarctica has contributed about 11 mm to the global sea-level rise. This image clearly shows the glacier's calving front, where ice breaks away. Over the years, satellite images have shown that this front has retreated, which indicates that the glacier is getting smaller over time.