Humanure composting being used in places where it's most needed. Quick video. Although the buildings are wayy!! over-built, at least the people are using it and empowering themselves.
http://www.nytimes.com/2009/03/29/opinion/...stof.html?th&emc=thFor those without video, the article mentions a bit, it tells the story of a couple women helping communities build composting toilets where people used to go in the streets or down by the river/streams. One of my favorite books is by Joe Jenkins: Humanure Handbook, free online or in paperback; very funny and packed with information. Has capability to end sewage getting in contact with drinking water forever, and much more benefits.