The Union of Concerned Scientists released a report today called “State of Charge” that finds that on average plug-in cars are less polluting than gasoline-powered vehicles in the U.S. But the greenhouse gases emitted from electric vehicles depends on the sources of electricity.

I am right in the middle of teaching my students about alternative vehicle technology and the debate between plug in electric cars and their hybrid counterparts when we stumbled across this article on Yahoo Autos. Enjoy!