A supraglacial lake over the Greenland ice sheet in the Kangerlussuaq area photographed on July 21, 2012. The lake feeds a stream that will deliver meltwater to the low elevations where it will either... more 
A supraglacial lake over the Greenland ice sheet in the Kangerlussuaq area photographed on July 21, 2012. The lake feeds a stream that will deliver meltwater to the low elevations where it will either flow to the ocean on the surface or dive in less 
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LiveScience.com | Photo By Marco Tedesco
Wed, Aug 15, 2012 12:11 PM EDT