Nature: The new economy of excrement
“…[New approaches to waste management and processing] reflect a rethinking of sludge treatment — with the end product, and not just public health, in mind from the start. The economic model of sanitation is also changing, moving from an entirely public service to one run at least partly by private enterprises that are finding value in excrement, says Doulaye Kone, deputy director of the Water, Sanitation and Hygiene Program at the Bill & Melinda Gates Foundation in Seattle, Washington…” (Wald, 9/13).