"Waste remains a major issue, especially in higher up camps where you can't reach," says Chhiring Sherpa, Chief Executive Officer of the non-government organisation Sagarmatha Pollution Control Committee (SPCC).
Although no official figure exists, his organisation estimates that there are around three tonnes of human excrement between camp one at the bottom of Everest and camp four, towards the summit.''
Although no official figure exists, his organisation estimates that there are around three tonnes of human excrement between camp one at the bottom of Everest and camp four, towards the summit.''