This is a two-part project originating in Australia. The first is a Melbourne-based effort to collect dog droppings and turn them into biogas for local use. The secondary effect would be to alert dog ...

It’s official: Cargill’s new energy idea is a bunch of crap. Minnetonka-based Cargill Inc. late last year fired up an $8.5 million anaerobic digester and generator facility that transforms turkey ...

Human waste is certainly plentiful, but clean? In fact, it is -- if used the right way. That's why some British utilities are planning to harness the biomethane gas produced at sewage treatment plants ...

This video is no longer available. A massive $271 million project at the WSSC Water facility in Accokeek, Maryland, is nearing completion. The first of two silos overlooking Piscataway Creek is now ...