Global Warming Impacts Patagonia's Massive Glaciers

SANTA CRUZ PROVINCE, ARGENTINA - NOVEMBER 30: The Perito Moreno glacier stands in Los Glaciares National Park, part of the Southern Patagonian Ice Field, on November 30, 2015 in Santa Cruz Province, Argentina. Certain parts of glaciers take on a bluish hue due to light refracition. The Southern Patagonian Ice Field is the third largest ice field in the world. The majority of the almost 50 large glaciers in Los Glaciares National Park have been retreating during the past fifty years due to warming temperatures, according to the European Space Agency (ESA). The United States Geological Survey (USGS) reports that over 68 percent of the world's freshwater supplies are locked in ice caps and glaciers. The United Nations climate change conference began November 30 in Paris. (Photo by Mario Tama/Getty Images)