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  2. Death zone - Wikipedia

    en.wikipedia.org/wiki/Death_zone

    Bottled oxygen can help mountaineers survive in the death zone. Mountaineers use supplemental oxygen in the death zone to reduce deleterious effects. An open-circuit oxygen apparatus was first tested on the 1922 and 1924 British Mount Everest expeditions; the bottled oxygen taken in 1921 was not used (see George Finch and Noel Odell).

  3. Cho Oyu - Wikipedia

    en.wikipedia.org/wiki/Cho_Oyu

    Until the ascent of Mount Everest by Reinhold Messner and Peter Habeler in 1978, this was the highest peak climbed without supplemental oxygen. [11] Viewing Cho Oyu via Tingri. Cho Oyu is considered the easiest eight-thousander, [nb 1] with the lowest death-summit ratio (1 ⁄ 25 th of Annapurna's).

  4. Reinhold Messner - Wikipedia

    en.wikipedia.org/wiki/Reinhold_Messner

    A "World's First" is the highest category of any Guinness World Record, meaning the ownership of the title never expires. [28] As of 2021, Messner is the second highest record holder of "World's Firsts" (after Icelandic oceanic rower Fiann Paul, who has 13). Messner's world firsts are: First ascent of Manaslu without supplementary oxygen

  5. Organisms at high altitude - Wikipedia

    en.wikipedia.org/wiki/Organisms_at_high_altitude

    The highest-altitude plant species is a moss that grows at 6,480 m (21,260 ft) on Mount Everest. [83] The sandwort Arenaria bryophylla is the highest flowering plant in the world, occurring as high as 6,180 m (20,280 ft). [84]

  6. Climbing the world’s other highest mountain – no ... - AOL

    www.aol.com/climbing-world-other-highest...

    Chimborazo is only the 39 th tallest mountain in the Andes, when measured from sea level, but there was a brief time in the 19 th century when it was thought to be the world’s highest peak.

  7. Makalu - Wikipedia

    en.wikipedia.org/wiki/Makalu

    This was the third ascent of an eight-thousand meter peak by a great mountain face and the highest peak successfully summitted without supplementary oxygen (Marjan Manfreda). [ 9 ] 1976 – South pillar route completed by Czechoslovak expedition (first attempt in 1973 ended shortly before Makalu South at 8010m due to the fatal fall of Jan ...

  8. Sirbaz Khan - Wikipedia

    en.wikipedia.org/wiki/Sirbaz_Khan

    In May 2019, Sirbaz became the first Pakistani to successfully summit the 8,516-metre (27,940-foot) high Mount Lhotse – the world’s 4th highest mountain - without using supplementary oxygen. [8] In July 2019, Sirbaz climbed the summit of the 8,047-metre (26,401 ft) Broad Peak mountain in Pakistan, without using supplementary oxygen. [9]

  9. Seven Summits - Wikipedia

    en.wikipedia.org/wiki/Seven_Summits

    The first person to climb the Seven Summits without using supplemental oxygen on Mount Everest is Reinhold Messner. [40] Miroslav Caban is the second climber to finish the project without supplemental oxygen on Everest (finished in 2005 with Carstensz). Ed Viesturs also summitted all peaks without supplemental oxygen. [41]