Nature on ethanol
The editors at Nature discover that corn ethanol sucks:
Biofuels are unlikely ever to be more than bit-players in the great task of weaning civilization from Earth’s coal-mine and oil-well teats. But they may yet have valuable niches — including some that allow them to serve some of the world’s poor, both as fuels for their own use and as exports. Provided, that is, that someone kills king corn.