While true in terms that we generate most electricity from fossil fuels so electric cars still pollute the environment but I find it really hard to believe an electric car in any fashion can pollute more than a gasoline/diesel. A regular car is at most 15% efficient at the vehicle level. Even less factoring carbon footprint end to end from oil extraction until you fill the car. An electric car on the other hand by itself is easily over 70% efficient. Burning gas would somehow need to be 5-7X times cleaner than coal factories.