Aug 01, 2019 · That melting has global implications—if Greenland's ice sheet were to melt entirely, it would result in about 20 feet of global sea level rise. As the temperature climbs and the long days of summer expose the ice sheet to more sunlight, the ice and snow at the lower elevations are the first to go. THE SCARE: An article in the New York Times in late July 2008 by an author promoting a forthcoming book about "global warming" calls the Greenland ice-sheet "one of 'global warming's' most disturbing threats. The article says: "The vast expanses of glaciers - massed, on average, 1.6 miles deep - contain enough water to raise sea levels ...

Jan 22, 2019 · If the entire Greenland ice sheet were to melt, it would raise global sea levels by 20 feet. That’s enough to inundate much of lower Manhattan in New York City and flood the National Mall in ...