Picture of a tip of the Perito Moreno Glacier which is expected to collapse soon, at Los Glaciares National Park, near El Calafate in the Argentine province of Santa Cruz, March 10, 2018. An arch of ice formed at the tip of the Perito Moreno, between the glacier and the shore of Argentino lake, started collapsing into the water on Saturday, a natural display that happens just once every several years. (Photo/Agencies)
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