Electricity Is Cleaner
Automakers can try to squeak out more efficiency from internal combustion engines, if they want. They can roll out all the 8- 9- or 10-speed transmissions, diesels, gasoline diesels, direct-injected, downsized, turbocharged, you-name-it tech they want.
Nothing beats zero emissions from an electric motor. This would also apply to fuel cell electric vehicles, but battery electric vehicles and other plug-in and regular hybrid vehicles are super effective.
What’s not to like about cleaner air? Battery powered cars can also benefit from a grid that itself is regulated, and mandated to become cleaner. Renewable sources such as solar, geothermal, wind, and hydro will play a greater part to one degree or another. The world is pushing for it, and electrified vehicles will make more sense as time goes on.