Another interesting article from the FT, "California vows to sue over emissions" from a story in April 2007 that outlined how Gov. Schwarzenegger was going to proceed, and then a new statement by California's governor -- reported on 22nd of October "California set to sue over emissions".
Apparently back in April 2007, Gov. Schwarzenegger told the US government that he was going to sue them if they didn't let the EPA grant a waiver over greenhouse gas emissions. Essentially the state of California wants to take more strident action against greenhouse gas emissions and do it faster than the US federal government is ready to set standards up to California's. Apparently the request for this EPA waiver was originally sent to the US government two years ago, so in 2005.
During 2006, California passed legislation that commits the state to a 25% cut in greenhouse gas emissions by 2020.
I'm usually against lawsuits. By and large, so many of them that make it to the press seem to be frivolous or at the very least selfish. This is something I can get behind.