California regulators advised Democratic presidential candidate Hillary Clinton on methods to revamp federal regulations regarding ethanol and other biofuels in order to ensure their increased use, according to state and campaign officials who spoke to Reuters. Clinton’s stance on the regulation in question, called the Renewable Fuel Standard, could hurt her chances in swing states such as Iowa, where she faces a tough race against Republican candidate Donald Trump. Congress created the standard in 2005, which mandated that transportation fuels for the U.S. market contain a minimum amount of renewable fuels. The bill aimed to lower greenhouse gas emissions and increase demand for renewable energy, but it has met with opposition from the oil industry’s lobby. Environmentalists have also spoken against the measure, calling it a subsidy for the corn industry. The California Air Resources Board, which oversees a market-based system called the Low Carbon Fuel Standard […]