photo: Jenny

Another nail has been hammered into the corn ethanol coffin. According to researchers at the University of Texas at Austin, the water requirements to produce corn ethanol are significantly higher than producing non-irrigated biofuels, hydrogen generated from renewable energy, or petroleum or diesel fuel.

The researchers compared the amount of water withdrawn (used and returned to the source) and the water consumed (water not returned to the source) per mile traveled in a typical car when powered by gasoline, diesel, corn ethanol, soy-derived biofuels, hydrogen and electricity and obtained the…