I asked this on Reddit. How long would it take to erode the trash on Everest? If we closed Everest and kept anyone from climbing it, about how long would it take for all the trash on it to "naturally" erode away?
https://www.reddit.com/r/estimation/comments/1foksz1/if_we_closed_everest_and_kept_anyone_from/ #CoSoQuestions
@scottyorange I can't fully answer your question. Think about what's up there. Oxygen bottles thru nylon tents and everything in between.
Some of this stuff is forever.