Tibetan guide, Bimbar talks to Greenpeace at base camp, Mount Everest, about the effects of climate change that he has witnessed. He has seen a deterioration in the Rongbuk Glacier and a noticeable drop in water levels with rising temperatures and dry conditions. over the last few years.The Rongbuk Glaciers are one of the prime sources of water feeding into the major rivers of China and India. Glaciers in the Himalaya are receding faster than in any other part of the world as a result of global warming.