Our Future in Feces: Vehicles Fueled by Biomethane

by Briton Lee

The British company Geneco has begun implementing prominent buses with a cartoon graphic detailing its power source: human waste. The concept of using waste to produce fuel is not novel, and is termed biomethane or renewable natural gas (RNG). It is most commonly used to power vehicles. The biomethane is collected from sewage treatment plants that process human waste while producing methane and carbon dioxide as byproducts. Typically, the resulting gases are simply released into the atmosphere, with plants in Oslo, Norway producing and releasing approximately 17,000 tons of carbon dioxide a year (Demerjian 2009). Continue reading