Apa Sherpa has stood on top of the world more times than anyone in history, and now he is heading back up Mount Everest, not for the fame or glory, but in the name of environmental protection.
This spring season, Apa, 49, hopes to conquer Everest for the 19th time, bring down as much rubbish as he can carry. and also use the trip to focus attention on how climate change is affecting the Himalayas.