2. The Open Road
GENeco, a subsidiary of the British sewage treatment company Wessex Water, is working with Volkswagen to develop the Bio-Bug, which runs on sewage. Bacteria are used to digest the sewage and produce methane, which is then turned into a biofuel and put into the tank of a converted 2.0-liter, four-cylinder engine. GENeco says that 70 households’ worth of human waste is enough to power the vehicle for a year, or 10,000 miles.
Photo Credit: GENeco