Bolivia, which holds 20 percent of the world's tropical glaciers has seen its glaciers shrunk by 43% since the mid-1980s. The melting has left behind at least 25 unstable glacial lakes capable of causing sudden and catastrophic outburst floods.

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Submitted October 30, 2016 at 11:54PM by KRISHNA53 http://ift.tt/2f2Tcit