FILE - In this Monday, Feb. 22, 2016 file photo, trekkers pass through a glacier at the Mount Everest base camp, Nepal. One-third of Himalayan glaciers will melt by the end of the century due to climate change, threatening water sources for 1.9 billion people, even if current efforts to reduce climate change succeed, according to an assessment released Monday, Feb. 4, 2019. by the International Centre for Integrated Mountain Development.
FILE - In this Monday, Feb. 22, 2016 file photo, trekkers pass through a glacier at the Mount Everest base camp, Nepal. One-third of Himalayan glaciers will melt by the end of the century due to climate change, threatening water sources for 1.9 billion people, even if current efforts to reduce climate change succeed, according to an assessment released Monday, Feb. 4, 2019. by the International Centre for Integrated Mountain Development. Tashi Sherpa, file AP Photo
FILE - In this Monday, Feb. 22, 2016 file photo, trekkers pass through a glacier at the Mount Everest base camp, Nepal. One-third of Himalayan glaciers will melt by the end of the century due to climate change, threatening water sources for 1.9 billion people, even if current efforts to reduce climate change succeed, according to an assessment released Monday, Feb. 4, 2019. by the International Centre for Integrated Mountain Development. Tashi Sherpa, file AP Photo