Melt Raise News Today

>> what are we seeing when we watch that very dramatic greenland footage. >> in april of this year, the temperature over greenland was much higher than normal. the engineer on one of the helicopters took a video during this temperature spike. those are parts of the glacier just exploding with the high temperatures. >> what exactly are we watching and why is it so important? >> well, the land-based ice on greenland would if at all melt raise sea level worldwide about 20 feet. most threatened citi...