Keyword: without bottled oxygen

Record attempt: 59-year-old top alpinist Valeriy Babanov plans to become the oldest person to climb Everest without artificial oxygen.

Last year she came close to beating Nirmal Purja's 14x8000 record time. Now Kristin Harila wants to try again - and she goes one better: The Norwegian not only wants to climb all 14 eight-thousanders in the world within a year, she also wants to do it without artificial oxygen.

On his third attempt, the weather, conditions and physical and mental condition were perfect. On March 21, the professional alpinist David Göttler reached the summit of Mount Everest solo and without additional oxygen. A conversation about risk management, expectations and inspection styles.