London Tests Buses Powered By Coffee Beans

Some of London’s buses are being powered by a biofuel made with 20 percent coffee oil. The concoction provides a cleaner, more sustainable energy solution for buses across London's network by decreasing emissions, according to collaborators Royal Dutch Shell and bio-bean, which has pioneered the use of coffee grounds as a source of clean-burning fuel, including bio-mass pellets and briquettes called Coffee Logs. Bio-bean founder Arthur Kay says the bus fuel initiative is an example of what can be accomplished “when we start to reimagine waste as an untapped resource."