Following the longstanding realisation that electric cars are really only as sustainable as the electricity they're powered with, the NY Times has a great article today about something else we should be asking.
What's going to happen to all the fancy batteries being used?
A good place to start is thinking about how many we're talking. Frost & Sullivan puts the number at 500,000 every year by the early 2020s.
That's a lot of batteries. Even if the impact isn't as big as the total carbon emissions spewed from the world's humongous fleet of cars each year, it's still toxic.
And it's a reminder of what the world's big auto companies don't want people to actually think about: the glass ceiling on cars as a truly sustainable form of mobility.