File photo of icebergs reflected in the calm waters at the mouth of the Jakobshavn ice fjord near Ilulissat...
Icebergs are reflected in the calm waters at the mouth of the Jakobshavn ice fjord near Ilulissat in Greenland in this photo taken May 15, 2007. New York, Boston and other cities on North America's northeast coast could face a rise in sea level this century that would exceed forecasts for the rest of the planet if Greenland's ice sheet keeps melting as fast as it is now, researchers said May 27, 2009. Sea levels off the northeast coast of North America could rise by 12 to 20 inches more than other coastal areas if the Greenland glacier-melt continues to accelerate at its present pace, the researchers reported. REUTERS/Bob Strong/Files (GREENLAND ENVIRONMENT SOCIETY)