SACRAMENTO, Calif. — California sued the federal government on Thursday to force a decision about whether the state can impose the nation’s first greenhouse gas emission standards for cars and light trucks. More than a dozen other states are poised to follow California’s lead if it is granted the waiver from federal law, presenting a challenge to automakers who would have to adapt to a patchwork of regulations. The state’s lawsuit against the Environmental Protection Agency, filed in U.S. District Court in Washington, D.C., was expected after Gov. Arnold Schwarzenegger vowed last spring to take legal action. ‘Our future depends on us taking action on global warming right now,’ Schwarzenegger said during a news conference. ‘There’s no legal basis for Washington to stand in our way.’ At issue is California’s nearly two-year-old request for a waiver under the federal Clean Air Act allowing it to implement a 2002 state anti-pollution law regulating greenhouse gases. Eleven other states have adopted California’s standard as a way to combat global warming and five others are considering it. ‘Our position is that it’s time for EPA to either act or get out of the way,’ said Lee Moore, […]