Entire corn and soya harvests would supply only 12% of US petrol
"Even if the [United States'] entire corn and soya harvests were used to produce agrofuels, they would satisfy only 12 per cent of the country's current thirst for petrol and 6 per cent of its need for diesel. See, for example, Brian Tokar, 'Running on Hype,' Counterpunch, November 2006. http://tinyurl.com/w5swf"
Source: Seedling Magazine, July 2007