I can't understand why most North American environmentally friendly vehicles are hybrids. Aside from the new Jeep 3.0 CRD, there are few diesels out there - and they really do get mileage, efficiency, and yes - even greenhouse emmisions.
And then what about alternate fuels like hyrdogen, etc. I know they aren't mainstream yet, but it sure would be nice to see some more development in that direction.