A British company hopes to build a toilet on the roof of the world because the slopes of Mount Everest are now packed with climbers who have nowhere to go.
"There is no drainage up there. Human waste stays around for a long time. That leads to infection, including dysentery," Charles Clarke, medical adviser to the British mountaineering council, told the Guardian newspaper.Thousands use the Nepalese and Tibetan base camps every year, posing hygiene problems for authorities, who are coming to Britain later this month for talks on how to improve the environment.
Philip Tolan, a toilet manufacturer from the Scottish city of Glasgow, hopes to make a pitch for business at the meeting.
"It may seem like quite a challenge, but we have products which would be ideal for such a difficult location," he told the paper.