See, e.g., the coolly named blog “It’s Getting Hot In Here: Dispatches from the Youth Climate Movement”, BREAKING: Obama Lets California and 13 States Regulate Global Warming Pollution from Cars and Trucks,

     BREAKING NEWS: President Barack Obama will grant California and 13 other states the authority to regulate global warming pollution from cars and light trucks, setting standards that would require cars and trucks sold in those states to achieve higher fuel efficiency. …
     …as the Post reports, the waiver allowing California and 13 other states to move forward with regulations on CO2 emissions from cars and trucks may do more to accelerate increased vehicle fuel economy than the federal CAFE standards….

, and CBS News, California Cheers Obama’s Emissions Push–CBS Evening News: State That Pioneered Battle With Auto Industry Chimes In On President Obama’s Proposals,

     In its drive to crack down on air pollution, California has waged a four-year battle with Washington and the auto industry. Now, it just might win, CBS News correspondent Ben Tracy reports.
     “For too many years Washington has been asleep at the wheel. Now we have an ally.” California Gov. Arnold Schwarzenegger [sic--apparent omission]
     California has wanted permission to set the most stringent standard in the nation on tailpipe emissions to reduce pollution. …

     I can hear the polar bears cheering already.