>Decreasing price of batteries is the most important step in decreasing air pollution and CO2 emissions. Is it? What good does an electric car do if the electricity was produced using fossil fuels?

Batteries are also extremely important for storing solar and wind energy, as it's a substantial cost of solar and wind farms now that producing electricity is so cheap.

Tesla leadership said many times that the battery part of its operation is going at least as if not more important than the car operations over time.