You need fossil fuels to get off of fossil fuels, you need regulation, the entire planet working on this, etc. Making the process LESS efficient is not going to help at any point. Let's start blowing up the equipment used to dig coal out of the ground so we can go back to doing it by hand like in the early 1900s, and let's start unscrewing the bolts in the machines at the factories, let's all quit at CAT and never build another digger...