I run numbers and then years later only remember the rough result. But for a gasoline powered car 10-20% of the CO2 emissions are from manufacturing. So EV's help reduce CO2 emissions a lot. EV's emissions during manufacture are currently a bit higher than gasoline powered cars but not by much.
That said cars and the infrastructure needed to support them requires enormous amounts of resources, EV's don't change that much. But what what are you going to do?
On the other hand for California zero emission also means no NOx, SOX and PM2.5 tail pipe emissions in cities where most people live. Granted EV's produce some PM2.5 from tires and brakes. But that's a percentage of tail pipe emissions.
That said cars and the infrastructure needed to support them requires enormous amounts of resources, EV's don't change that much. But what what are you going to do?
On the other hand for California zero emission also means no NOx, SOX and PM2.5 tail pipe emissions in cities where most people live. Granted EV's produce some PM2.5 from tires and brakes. But that's a percentage of tail pipe emissions.