Crud-to-crude: The global potential of biofuels made from human waste
Last year, a car fueled by human waste toured the European countryside, covering more than 2,000 kilometers (1,200 miles). It was the culmination of To-Syn-Fuel, a pathfinding project using technology developed by Germany's Fraunhofer Institute UMSICHT to make 50,000 liters (13,200 gallons) of biocrude oil from 500 tons of sewage sludge. The trip marked a […]