If someone wants to drive an SUV, an International pickup, whatever, I don't really think it's anyone's business but the person driving it.

A 2007 Hummer driving on the highway at 55 MPH pollutes less than a 1970's economy car does while it's sitting parked in a driveway.

A Hybrid car uses more energy in production and causes more pollution from production than will ever be saved by driving it, but somehow they're "green".

Diesels, the most efficient engines available, very popular in Europe, can't be sold in the US for the most part because they don't meet EPA standards......?

Get the politics and the knee jerk reactions out of this, let science and physics be the guides, and a lot could be fixed.