Read here. Greenland's ice sheet has been melting for well over 12,000 years (and was even smaller in recent past). It continues to melt around the edges due to warmer ocean currents lapping at its edges, not because of a warmer atmosphere. Using satellite technology, expert scientist Scott Luthcke's research indicates that Greenland possibly has been melting at at a rate that represents only 0.005% to 0.008% of its volume.
What does this really mean? The ice sheet may take some 19,000 years to melt entirely. If the present global cooling trend continues, then it would take longer. ;-) (And scientists remain unconvinced that ice sheets would ever melt entirely based on most recent evidence.)
Putting it into perspective........
"So the next time you read something that breathlessly says.....“If this activity in northwest Greenland continues and really accelerates some of the major glaciers in the area — like the Humboldt Glacier and the Peterman Glacier — Greenland’s total ice loss could easily be increased by an additional 50 to 100 cubic kilometers (12 to 24 cubic miles) within a few years”.....you can say “Well, if it does increase by the larger estimate of 100 cubic km per year, and that’s a big if since the scientists are just guessing, that would increase the loss from 0.007% per year to around 0.010% per year, meaning that the Greenland Ice Cap would only last until May 23rd, 12010.”"