well if your going to raise that old turd of an issue (yes pun)
China Population: 1,330,044,544 (July 2008 est.)
so at 0.7kg of poo per pay per person = 255.5kg per year, say avg lifespan in China is 65 thats 16607.5kg a life time.
16607.5 x 1,330,044,544 = enough fertilizer for hops.
There was a show on tv a few months back about the sewage treatment problems different countries are facing. In China they really push Bio-tanks (I think that's what they called them), they encourage rural people to install them in their homes and the poo from the family can give them a constant supply of gas for cooking etc. Apparently most of the women in these areas will only look for a husband that can provide her with one so she doen't have to spend half her day scouring the countryside for wood :lol: .
The worst topic on the program was a scientist from Japan I think it was, who because there is so much undigested protein in human feces has produced a method to extract it and make edible HAMBURGER PATTIES from it!!!!!!!!!