Energy Efficiency News: Alternative fuels, such as biofuel or hydrogen, could use much more water in their production than conventional petroleum-based fuels, says new research. According to Carey W. King and Michael E. Webber at the University of Texas at Austin, the production of some alternative fuels could put a strain on water resources in some regions. The researchers compared the amount of water withdrawn (water taken from source, used and returned for reuse) and consumed (water that is not …