Mount Everest, a climber known only as ‘Green Boots’, and the mission to solve a 30-year mystery

In 1996, a blizzard in Everest’s notorious ‘death zone’ killed ‘Green Boots’. Now, a fresh expedition plans to retrieve his body, and establish his identityThirty years after he perished in a small limestone cave near the top of Mount Everest, the body of the climber known only as “Green Boots” may...