David Olive: If you were trying to develop a less effective means of kicking the gasoline habit and coping with climate change you'd be challenged to improve on North America's misguided biofuels policy, which is centered on corn-based ethanol and is contributing to the global food crisis. "Biofuels are economical nonsense, ecologically useless and ethically indefensible," Nestle SA chairman Peter Brabeck-Letmathe.
