The coal plant pollutes MORE than a car does.
apples and kumquats. An oil refinery pollutes more than a coal fired power plant becasuse oil refineries dont spend much thought on cleaning air .
So if all is even "at the source" an all electric car is zero emissions and a plug in hybrid is sizeably (at least 1/3) less emissions than a gas car per miles driven.
One of the worst types of pollutions comes from the coal plant and that is mercury. I wasn't implying that gasoline engines are better than electric. I am saying for people who think electric cars save the environment, they are misled.
I think it would be better to have a huge majority if not all power, be generated through nuclear power but too many people cry about it's hazards. They would much rather have coal plants and mercury poisoning. There is always going to be a cost involved in "electrical" needs. There will always be some kind of impact on the environment as long as huge corporations control the advancement of technology and hold it hostage.