FILE – Chunks of ice break off the Perito Moreno Glacier, in Lake Argentina, at Los Glaciares National Park, near El Calafate, in Argentina’s Patagonia region, March 10, 2016. As glaciers melt and pour massive amounts of water into nearby lakes, 15 million people across the globe live under the threat of a sudden and deadly outburst flood, a new study finds. (AP Photo/Francisco Munoz, File) 
FILE – A helicopter flies over the Planpincieux glacier located in the Alps on the Grande Jorasses peak of the Mont Blanc massif, above the Val Ferret, near Courmayeur, northern Italy, Sept. 25, 2019. As glaciers melt and pour massive amounts of water into nearby lakes, 15 million people across the globe live under the threat of a sudden and deadly outburst flood, a new study finds. (AP Photo/Antonio Calanni, File) 
FILE – This May 9, 2020 file photo shows the Mendenhall Glacier in Juneau, Alaska. As glaciers melt and pour massive amounts of water into nearby lakes, 15 million people across the globe live under the threat of a sudden and deadly outburst flood, a new study finds. (AP Photo/Becky Bohrer, File) 
FILE – Tents are set up for climbers on the Khumbu Glacier, with Mount Khumbutse, center, and Khumbu Icefall, right, seen in background, at Everest Base Camp in Nepal on April 11, 2015. As glaciers melt and pour massive amounts of water into nearby lakes, 15 million people across the globe live under the threat of a sudden and deadly outburst flood, a new study finds. (AP Photo/Tashi Sherpa, File)
Study: 15 million people live under threat of glacial floods
