According to a recently published report, 38 percent of the world’s population has no access to sewers and deposit their waste in tanks and pit latrines. High-profile initiatives have been pretty good at building facilities in developing areas and getting bums on toilets, but these toilets often overfill. In order to avoid this from happening, entrepreneurs are coming up with ways in which people can use excess excrete in profitable ways. From fertilizers to bioplastics, see here how the rapidly growing economy of excrement is developing.