Trashtag challenge on Mount Everest. Results: 11 tons of trash and 4 dead bodies

Not anymore, they're cleaning it up

Bringing in a flock of cryogenic buzzards.

They clean it every off season but the minute the season begins again they make just as much or more trash. They need to shut the mountain down for a few years till it is restored. Than only allow so many a year climb it.
You should see base camp it is like camping in a garbage dump.