Detailed text transcripts for TV channel - CNN - 20170806:17:08:00
>> 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 cities in the world by population are calcutta, mumbai, you can go down the list of many of them in asla...
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