HUMAN WASTE HAS HIGH ENERGY VALUE.

Biogas potentially available from human waste worldwide would have a value of up to US$ 9.5 billion in natural gas equivalent, UN University's Canadian-based water institute estimates. And the residue, dried and charred, could produce 2 million tonnes of charcoal-equivalent fuel, curbing the destruction of trees. The large energy value would prove small, however, relative to that of the global health and environmental benefits that would accrue from the safe treatment of human waste in low-resource settings. read more about the research here;http://www.sciencedaily.com/releases/2015/11/151103064551.htm