Marking the Summer Olympics in 2008, Tashi Tsering holds the Olympic torch on Qomolangma's summit. In 2005, he guided a man from Denmark who was attempting to climb Qomolangma without oxygen. The man's condition turned critical at 8,550 meters, about 300 meters below the summit, and Tatse offered some oxygen to help him reach the top. "I could climb Qomolangma …