How much rubbish is on mount Everest?

There is currently estimated to be around 120 tons of rubbish on Mount Everest. This includes everything from food packaging and water bottles to oxygen tanks and climbing gear. Some of this rubbish has been left behind by climbers, while other items have been brought up the mountain by animals or wind. The rubbish is a major environmental problem, as it can take hundreds of years to break down and can release harmful chemicals into the environment. It can also be dangerous for climbers, as it can block paths and cause accidents.