U.S. News and World Report: In his inaugural address, President Obama promised “to restore science to its rightful place.” Last week, in arguably one of the toughest tests of that pledge yet, the Environmental Protection Agency proposed new rules for calculating greenhouse gas emissions from ethanol. [Read more about Obama’s commitment to science] The underlying question: Does ethanol help or hurt the environment? In 2007, when Congress passed the law that lit up the U.S. biofuel industry by mandating the …