Inter Press Service: A wind turbine on an acre of northern Iowa farmland could generate 300,000 dollars worth of greenhouse-gas-free electricity a year. Instead, the U.S. government pays out billions of dollars to subsidise grain for ethanol fuel that has little if any impact on global warming, according to Lester Brown. “The smartest thing the U.S. could do is phase out ethanol subsidies,” says Brown, the founder of the Washington-based Earth Policy Institute, in reference to rising food prices resulting …