Mining all the lithium to use for batteries for the entire planet. Not to mention the already stressed power grid where certain states already have to do rolling blackouts. How do you think that grid is going to handle the demand of a 100 million+ cars on it? Not to mention the majority of our electricity is still generated by fossil fuels so instead of the emissions coming out of your tailpipe its coming out of the coal plants stacks that generates the electricity you use to change your vehicle. To name a few.