"Saving the World" is about 40 years too late at least, the damage is done, too many feedback mechanisms now in play, rising temps, global crop failures, Billions will starve and we'll take most of the large animal species with us as the Habitat fails. Planet will be fine... in about 10 million years or so.There is enough oil to be pumped/fracked here in the US for at least 150 years or longer. During that time grid improvements can be made, new battery technology can be developed and new methods of swapping batteries in EVs can be developed. There is absolutely no reason to rush into this "green agenda" headlong and blindly in a ten year time period. It will only kill the economy which will have devastating and immediate effects on the entire world. Adding ethanol to gasoline is a ridiculous effort that costs more than it "saves". It takes 1.5 times as much energy to produce ethanol than the ethanol can produce when burned. In other words it's another "green feel good" effort by idiots.
If you want to "save the world" it would be better to invest your time and efforts in stopping the major polluters like China, India and Russia rather than trying to force EVs on people that don't want anything to do with them. Another thing you could try would be to make hydrogen generation practical and portable. Hydrogen power is much cleaner and more abundant than oil or batteries.