Al from Facebook asked : What amount of fossil fuels are used to produce a gallon of ethanol? Watch energy expert, Brigham McCown, answer in the video above. Have a question you want answered? Send them to @AiiWire on Twitter or e-mail them to [email protected] Ask the Expert is a video cast provided by the Alliance for Innovation and Infrastructure (Aii), an independent, non-profit alliance focusing on infrastructure innovation through awareness and education.