California officials from Sacramento to Washington say that law, history, politics and even the Nobel Peace Prize are on their side in one of the state's signature environmental ventures - claiming the right to regulate emissions of greenhouse gases from cars and light trucks.

But that may not be enough. Next week, state officials are prepared to go to federal court to force the Environmental Protection Agency's hand so that California and 14 other states can enact restrictions that would, by 2016, reduce carbon dioxide emissions from vehicles by 30 percent.

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Source: Mercury News Washington Bureau (http://www.mercurynews.com)