Greenland's huge icecap melting?

Greenland's huge icecap, second only to Antarctica, is also showing signs of change, although measurements are preliminary. Outflow glaciers like this one on the central east coast, as measured by NASA airborne radar and laser, appear to be thinning and flowing more rapidly. The National Climate Data Center (NOAA) reports that 2002 saw the greatest measured surface melt of Greenland ice in 24 years of satellite records. Two deep ice cores from there provide a detailed Northern Hemisphere climate record extending beyond the last ice age.