"Hmm… have we been selling sewage short? Rob noted the other day that small-scale biogas digesters—which convert human and animal waste into methane that an be used for cooking fuel—can do a lot for the developing world. But now here's Flint, Michigan, thinking even bigger, looking to create a new biogas system that would turn municipal sewage into fuel for the city's bus fleet..."
It's great to see Flint in the news for something other than crime and economic devastation.
