has he worked with any organization for improving the above mentioned living condition?
Yes - He was the Honorary President of the American Himalayan Foundation, a United States non-profit body that helps improve the ecology and living conditions in the Himalayas.
Edmund Hillary
He was the Honorary President of the American Himalayan Foundation, a United States non-profit body that helps improve the ecology and living conditions in the Himalayas. 
who was the first one to climb mount everest Edmund Hillary who is he? A New Zealand mountaineer, explorer, and philanthropist. who was along with him for this first climb? Tenzing Norgay when did norgay started climbing mountains? When he was 20 year old, somewhere in 1934 what did he do after his everest success? He became the first Director of Field Training of the Himalayan Mountaineering Institute in Darjeeling, when it was set up in 1954. has he been awarded for his achievements? Yes - Tiger Medal for high-altitude work; George Medal; Queen Elizabeth II Coronation Medal. what was hillary doing after the everest success? Hillary climbed ten other peaks in the Himalayas on further visits in 1956, 1960–1961, and 1963–1965. He also reached the South Pole as part of the Commonwealth Trans-Antarctic Expedition, for which he led the New Zealand section, on 4 January 1958. what kind of charity is he involved in? Assisting the Sherpa people in Nepal, construction of schools and hospitals, improving the ecology and living conditions in the Himalayas, worldwide protection of mountains.
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Edmund Hillary [SEP] Philanthropy
Following his ascent of Everest he devoted himself to assisting the Sherpa people of Nepal through the Himalayan Trust, which he established in 1960 and led until his death in 2008. His efforts are credited with the construction of many schools and hospitals in this remote region of the Himalayas. He was the Honorary President of the American Himalayan Foundation, a United States non-profit body that helps improve the ecology and living conditions in the Himalayas. He was also the Honorary President of Mountain Wilderness, an international NGO dedicated to the worldwide protection of mountains.