Nepal wants climbers on Mount Everest to carry their defecation back down to base camp and no longer leave it on the mountain. From this year's main season in spring, it will be mandatory for them to use excrement bags.

The 8,849 meter high mountain has gained notoriety for being the highest garbage dump in the world. There are toilets in the base camp itself, but mountaineers have to relieve themselves outside - and the problem with excrements is now big.