You're right. Mining 400kg of carbon, iron, and aluminium for a battery in a sodium ion car is prohibitive. Rather than replacing it with nickel, copper, noble

You're right. Mining 400kg of carbon, iron, and aluminium for a battery in a sodium ion car is prohibitive. Rather than replacing it with nickel, copper, noble metals, and rare earths in an electrolyser and fuel cell we should remove and shrink as many cars as we can by mass expanding transit, active transport, and LEV infrastructure.