Photos taken on Mount Everest from the same spot where similar pictures were taken by George Mallory in 1921 reveal what is described as an "alarming" loss of ice.
Scientific studies confirm more than 90 percent of the world’s glaciers are retreating, and many of the smaller ones — like the alpine ice sheets of Glacier National Park in the U.S. — are rapidly disappearing. On the other side of world, at Khumbu Glacier near Mount Everest in the Himalayas, expanding ponds are merging and forming larger bodies of water. This could threaten settlements downstream if they overflow. Thawing glaciers account for about 20 percent of the sea-level rise recorded in the past century, adding to the meltwater coming from polar ice caps and ice sheets.