No he's effing not. This for example:
“For the first time in history, we have set in motion a national policy aimed at both increasing gas mileage and decreasing greenhouse gas pollution for all new trucks and cars sold in the United States of America,” Mr. Obama said in remarks from Washington, flanked by officials from Michigan and California. [...]
The effect will be a single new national standard that will create a car and light truck fleet in the United States that is almost 40 percent cleaner and more fuel-efficient by 2016 than it is today, with an average of 35.5 miles per gallon.
This is important and historical, and anyone who's stomping their feet and regretting their vote can bite me. If moderating on something else earned him the capital to make this happen, I'll take that trade. We'd be insane not to.