California sues EPA over Global Warming

California and 14 other states are demanding urgent action on global warming from the U.S. Environmental Protection Agency, arguing in a lawsuit filed Thursday that the environmental and health risks are mounting every day that the Bush administration delays action.

But a quick remedy to the problem may not be in the cards, even if the EPA makes a decision about California's plan to give its drivers cleaner cars that emit fewer greenhouse gases.

A tangle of lawsuits is expected to follow, no matter what the EPA's decision is, as Gov. Arnold Schwarzenegger acknowledged Thursday.