Decades of commercial mountaineering have turned Mount Everest into the world's highest rubbish dump as an increasing number of big-spending climbers pay little attention to the ugly footprint they leave behind.
Fluorescent tents, discarded climbing equipment, empty gas canisters and even human excrement litter the well-trodden route to the summit of the 8,848-metre (29,029-foot) peak.
"It is disgusting, an eyesore," Pemba Dorje Sherpa, who has summited Everest 18 times, told AFP. "The mountain is carrying tonnes of waste."
As the number of climbers on the mountain has soared -- at least 600 people have scaled the world's highest peak so far this year alone -- the problem has worsened.
Source: Mount Everest, the high-altitude rubbish dump