BitcoinThere are even more lessons in the This Machine Greens documentary Could Bitcoin mining actually be a net positive for the environment Thats their thesis The documentary has Swan Bitcoins seal of approval Enrique Posner produced it and Jamie King of Steal This Film fame directed it In the first part of this analysis we learned that the Bitcoin network tends to use wasted energy and goes wherever theres cheap energy available And renewable sources of energy are usually cheap because theyre efficient