For example, at the highest camp, Camp 4 on the South Col at almost 8000m, there are shredded tents and small fuel cylinders frozen into the snow. (There are no abandoned oxygen cylinders anymore, as often reported. On the mountain, where people were working close to their limits, it was natural to discard anything unnecessary, such as depleted oxygen cylinders or rubbish. The 1994 US expedition became the Sagarmatha Environmental Expedition (SEE), committed to cleaning the slopes of Everest whilst also climbing the mountain. Rubbish on Everest is officially dealt with by the Sagarmatha Pollution Control Committee (SPCC).

Source: Forbes May 20, 2019 12:33 UTC