The Bush administration blocked California's plan to put tighter limits on automobile tailpipe emissions, handing a victory to the auto industry on the same day the president signed an energy bill that mandates the biggest boost in federal fuel-efficiency standards in more than 30 years.
Late yesterday, Environmental Protection Agency Administrator Stephen Johnson blocked California from going further than the federal government does in curbing auto emissions that contribute to global warming, setting up a clash with Gov. Arnold Schwarzenegger.
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