That makes the problem regional, but not unsolvable. Consider states like Washington and California, where electricity is highly renewable. Every electric car i

That makes the problem regional, but not unsolvable. Consider states like Washington and California, where electricity is highly renewable. Every electric car in those states is a big difference in 'power cleanliness'. True, in other states the gain isn't as big, but I still suspect a coal plant might be cleaner than N small gas engines (and the refineries that support making that gasoline.) At the very least, it allows for the possibility of changing the power generation under the cars, which current engines don't allow.