General Motors is apparently serious about it's green push and will be launching a new commercial later this month to show off its environmental intentions. The spot, created by McCann-Erickson, is GM's televised Dear John letter to Big Oil that begins by saying, "We've had this great relationship for many years. We think we will both be a lot happier and healthier if we see less of each other."

The Big Predictions for the Future have begun. This is the numbers game where eye-popping numerical targets start being thrown around before we've come anywhere close to achieving the eyebrow raising targets that are still 14 years away. According to Margo Oge at the EPA, the CAFE standard will need to jump to 75-MPG by the 2030s to meet greenhouse targets.

In yet another move demonstrating that Porsche is capitulating to the greener crowd, an industry newsletter is reporting that the German automaker's executives have overcome their long-time reservations about diesel powerplants and are considering such a vehicle for their lineup by 2010.