This is a common practice in other high altitude, high traffic mountains, such as Aconcagua. Rangers actually watch you deposit your excrement bag and fine you if you do not do so or they catch you leaving your waste on the mountain. I'm frankly surprised its just now becoming a policy on Everest.
It sounds gross, but in practice it is not as bad as it seems. For anyone interested in the details, it is stored in multiple bags (one bag per movement, then multiple larger outer bags) and freezes pretty quickly, so there isn't really any smell.
It sounds gross, but in practice it is not as bad as it seems. For anyone interested in the details, it is stored in multiple bags (one bag per movement, then multiple larger outer bags) and freezes pretty quickly, so there isn't really any smell.