The glaciers on Mount Everest and the surrounding region have shrunk by 13 percent in the last five decades as temperatures have risen and snowfall has declined in 
that section of the Himalaya, according to a new study. Using satellite imagery and topographic maps, a team of scientists found that the majority of glaciers on Everest, the world’s tallest mountain, and in the surrounding Sagarmatha National Park are retreating at an accelerating rate. In the last 50 years, the snowline in the Everest region has shifted up by an average of 590 feet (180 meters), said Sudeep Thakuri, a Ph. D. student at the University of Milan and leader of the research team, which presented its findings at a conference in Cancún, Mexico. Because glaciers are melting faster than they are being replenished, researchers say, rock and debris that were previously hidden under snow are now exposed and absorbing heat.
Pavel Novak