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Edinburgh University researchers use drones to map retreating Andes glaciers

Edinburgh University researchers use drones to map retreating Andes glaciers

Science
An Edinburgh university researcher has used drones to capture a bird's-eye view of some of the highest glaciers in South America.Rosie Bisset is part of a project to map the Andes glaciers which are retreating in the face of global heating, despite their high altitude. Experts say these glaciers are a vital resource which are under threat. The glaciers in Peru have shrunk by about 30% in the last couple of decades. Peter Nienow, professor of geology at the University of Edinburgh, said it could have a devastating effect on local people. "In the Andes in Peru, which have about 70% of the world's glacier area in the tropics, those glacial areas are retreating," he said. "As they retreat that impacts downstream communities because t...
Antarctica's grounding lines are retreating across the seafloor

Antarctica's grounding lines are retreating across the seafloor

Science
April 2 (UPI) -- The grounding lines of Antarctica are on the retreat on the ocean floor. According to a new study by scientists at the University of Leeds, warm ocean water is shrinking Antarctica's underwater footprint.According to the new data, published this week in the journal Nature Geoscience, the Southern Ocean melted 565 square miles of underwater ice between 2010 and 2016.Antarctica's glaciers have been retreating at an average rate of 82 feet per year. But the rate retreat of the grounding lines of eight of the ice sheet's 65 largest glaciers is five times greater, roughly 410 feet per year.The most dramatic rates of grounding line retreat were measured along the coast of West Antarctica."Our study provides clear evidence that retreat is happening across the ice sheet due to oce...