Question Earthority!

“First, virtually all crop-based biofuels are worthless from a climate perspective and probably a bad idea from most other perspectives. Second, there is not a single commercial cellulosic ethanol plant in United States yet. Third, I’m not sure there is an agreement in the scientific community about how to do lifecycle analysis needed to determine the net carbon benefit from cellulosic fuels. Fourth, in a post-2050 world with three billion more people who are losing water from melting glaciers and desertification, arable land and water will be very dear commodities.” (07/18/08)