A British mountaineering guide has survived an unplanned six-day bivouac near the summit of Mount Everest, sustained only by a single chocolate bar and melted ice. The climber, identified as David Henson, 38, was separated from his group during a sudden storm on May 12 and endured temperatures below minus 30 degrees Celsius without a tent or sleeping bag. Henson's survival, while remarkable, underscores the narrowing margins for error in the earth's highest places as climate change alters weather patterns and weakens the jet stream.
Henson's ordeal began when a whiteout descended on the South Col at 7,900 metres. His team descended, but he took a wrong turn and spent the first night in a crevasse. He rationed a single 100-gram chocolate bar, eating small pieces every few hours. To hydrate, he melted snow in his mouth, a process that risked hypothermia. 'The human body is a furnace that requires fuel and insulation,' says Dr. Helena Vance, Science and Climate Correspondent. 'Deprived of both, it cannibalises its own muscle for energy. Henson's survival is a testament to his metabolic reserves and luck.'
Rescuers found him conscious but with severe frostbite on his hands and feet. He was airlifted to Kathmandu where surgeons are assessing whether amputation is necessary. The ascent of Everest has become increasingly commercialised, with hundreds attempting the summit each spring. But the mountain's dangers are multiplying. Vance notes that warming at high altitudes is destabilising the Khumbu Icefall, while stronger storms are becoming more frequent. 'The same fossil fuel emissions that warm our cities are reshaping the Himalayas,' she says. 'Climbers are now facing conditions that were once extremely rare.'
Henson's story of endurance is being compared to other epic Himalayan rescues. But it also raises questions about the safety protocols on the world's highest peak. In 2023, 18 climbers died on Everest, the deadliest season in a decade. 'We are seeing a convergence of factors: more inexperienced climbers, warmer temperatures that create more dangerous ice, and stronger winds,' Vance explains. 'The window for safe summits is closing.'
Henson, who has guided on Everest for ten years, told reporters from his hospital bed that he focused on 'one hour at a time'. He credits his background in winter mountaineering for his survival. 'I knew I had to keep my core warm and not panic,' he said. His body, however, may bear permanent scars. The frostbite has affected his fingers and toes; doctors will decide in two weeks if surgery can save them.
As the planet warms, such ordeals may become more common. The glaciers of the Himalayas are losing mass at an accelerating rate, and the monsoon patterns that bring life to South Asia are strengthening. 'Mount Everest is a barometer for the health of our planet,' Vance concludes. 'And its reading is growing more extreme with each passing year.' For now, Henson's will to survive has offered a rare human triumph amid an increasingly hostile environment. But the message from the mountain is clear. The rules are changing. And they are changing fast.
