The Double Standard of Everest Records The Nepali duo's record breaking ascent of Mount Everest has sparked a mix of awe and concern.
Kami Rita Sherpa's 32nd summit, and Lhakpa Sherpa's 11th, mark milestones in Nepal's mountaineering history, but also highlight the darker side of the climbing boom.
Nepal has struggled for decades to balance its economic dependence on tourism with the risks posed by overcrowding on the world's highest peak.