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Nepal Opens Investigation into Record-Breaking Everest Climb Using Xenon Gas

  • Four British Army veterans summited Mount Everest in under five days on May 21, 2025, after flying from London on May 16 and arriving at base camp on May 17.
  • The team used xenon gas treatment administered in Germany before departure, aiming to reduce altitude sickness without the typical weeks-long acclimatisation, prompting debate over its safety and ethics.
  • The expedition, organized by Furtenbach Adventures, employed around 120 local workers paid competitively and included training in hypoxic tents and other acceleration methods.
  • The UIAA stated xenon offers no proven benefit for altitude climbs and warned side effects like impaired brain and respiratory function could be fatal, while Nepal investigates the use amid ongoing safety concerns.
  • Nepalese officials face a dilemma balancing safety, fairness, and economic impact as short-duration climbs challenge traditional Everest expeditions, with Furtenbach confident the investigation will clear the team.
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The Sun broke the news in United Kingdom on Wednesday, May 21, 2025.
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