Nepalese soldiers have retrieved four bodies and a skeleton from Mount Everest and the neighbouring peaks of Lhotse and Nuptse during a cleaning operation. The recruits collected 11 tons of rubbish since April, according to the army. At 8,849 metres, Mount Everest is the highest mountain in the world and has also gained the sad notoriety of being the world’s highest rubbish dump. Tons of broken tents and clothing, food packaging, cookers, empty water bottles, beer cans and oxygen bottles lie there, left behind by thousands of adventurers. There is also a lot of human waste – and dozens of corp…