The smug has been thick for green car owners and promoters, but the reality may be something different (tip to Instapundit):
The study highlights in particular the “toxicity” of the electric car’s manufacturing process compared to conventional petrol/diesel cars. It concludes that the “global warming potential” of the process used to make electric cars is twice that of conventional cars.
And then there's the issue of whether the electricity generated is from coal. Tip the scales some more for conventional vehicles.
I'm grinning. Very broadly.