(http://media.il.edmunds-media.com/nissan/leaf/2012/ns/2012_nissan_leaf_prf_ns_41612_196.jpg) A new study by the Union of Concerned Scientists gets down to the nitty-gritty with electric and hybrid cars like the Chevrolet Volt, Nissan Leaf and Mitsubishi i by tracking the source of power and its carbon impact.
InsideLine