California regulators on Friday voted to reinstate a rule to require a 10% cut in the carbon content of transportation fuels sold in the state by 2020, despite oil industry objections that it would raise gasoline prices. The California Air Resources Board voted 9-0 to move forward with the state’s low-carbon fuel standard, which was the first regulation of its kind in the U.S. when it was established in a 2007 executive order by then-Gov. Arnold Schwarzenegger. It had been frozen since 2013, as the state made revisions to the law following a court challenge. Oregon adopted its own carbon fuel standard in 2009. The California regulation further tightens the state’s emissions regulations, already the most stringent in the U.S. It requires fuel makers to reduce emissions by developing cleaner fuels or adopting greater use of biofuels. It also requires fuel producers to take into […]