National Geographic: Everest isn't the same mountain it was when Jim Whittaker became the first U.S. climber to summit the peak in 1963. The world's highest peak has been shedding snow and ice for the past 50 years, possibly due in part to global warming, new research says. (Take an Everest quiz.)
New analyses show Mount Everest has lost significant snow and ice cover over the past half century. In nearby Sagarmatha National Park, glaciers have shrunk by 13 percent. Weather data reveal the larger Everest region has...