Mont Blanc, the highest mountaing in the Alps:  Martijn Seuren planned to climb all the peaks in the range. Photograph: Loic Venance/AFP/Getty Images

An ambitious attempt by one of the world’s leading mountaineers to ascend all 82 4,000-metre summits in the Alps consecutively in a single summer has (...)

Every year hundreds of climbers  set out in April to attempt to climb Mount Everest in Nepal, above. Photograph: Desmond Boylan/Reuters

A mountaineer on Everest has described the “terrifying” scene of two noted European climbers fighting with Nepalese guides in a high-altitude b(...)