Andrzej Bargiel, a 37-year-old ski mountaineer from Poland, has achieved what no other human has ever managed before. He successfully climbed Mount Everest without bottled oxygen and then skied all ...

When we proposed climbing Everest without oxygen in 1978 people told us it wasn't possible, that we were risking our lives. They said we would lose our brains up there. When the first climbers on the ...

Hundreds of climbers are in the Himalayas this spring to attempt Mount Everest and the other peaks above 8,000 meters (26,000 feet). Very few of them, however, will climb without supplemental oxygen.

Last October, my daughter Elizabeth and I stood at Londorossi gate (elevation 2,250 metres), the western entrance to Mount Kilimanjaro National Park in Tanzania, ready to begin the nine-day Lemosho ...