What happened to biofuels?
Everybody was talking about biofuels a few years ago. Politicians in the U.S. saw corn ethenol as a path to “energy independence,” while greener folks preferred biodiesel made from waste cooking oil. Fans of biofuels said that these were supposed to be just a bridge to second-generation biofuels like cellulosic ethanol and algae biodiesel; these wouldn’t be made from food crops or limited feedstocks, and they would be much greener overall.
Continue reading… “What is the future for biofuels?”