I don't think I understand why going away from fossil fuels necessitates exponential copper growth. However, it is good to see that the way to reduce cost happe

I don't think I understand why going away from fossil fuels necessitates exponential copper growth. However, it is good to see that the way to reduce cost happens to also increase yield. We need to be more efficient in our resource use. Reduce, reuse, recycle in that order.