The weight of human waste on the roof of the world in Nepal is estimated at several tonnes. Between the first and fourth base camp of the climb, the quantity of residue would be estimated at… three tonnes.

The municipality will now require the purchase, at base camp, of bags dedicated to human droppings. These bags should be able to be used up to six times, knowing that each person spends an average of two weeks there. Chemicals should prevent the smell from spreading. The contents of the bags will be checked upon return.