Good news, but
This is great to hear, as clearly lots of people want to drive greener vehicles, especially with all of the features that Teslas have, but just couldn't afford it before. However, there is a big caveat to this: electric cars are only as green as their source.
That means that in coal heavy countries, the U.S. being quite guilty of that, the impact is far less than in nations like France or Brazil, where greener energy dominates.
While electric cars do move the smog away from cities and concentrate it around power plans, we still need to push for greener energy production to help make electric cars ever more efficient.