the idea that 200 pound bags of flesh need to be ferried around by tonnes of steel, massive swathes of land devoted to letting them rest nearby while we remain in the destination, and the entire landscape designed to let them roam around is insanity.
edit: also, the majority of people don't own cars.
The solution isn't "just ride public transportation".
The solution is less polluting vehicles, ie. hybrid/electric cars. More efficient roadways (ie. "smart roads"), etc.