This photo combo of satellite images provided by the USGS shows Lake Poopo filled with water on Oct, 11, 1986, left, and almost dry on Jan. 16, 2016, right, in Bolivia. As Andean glaciers disappear so do the sources of Poopo’s water. Along with glacial melting, authorities say another factor is the diversion of water from Poopo’s tributaries, mostly for mining but also for agriculture. (USGS via AP)

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