Stop worrying about how much energy mining Bitcoin uses, the title to a recent article written for The Conversation, you can find the original article for yourself, here.
Should we stop worrying?
Well according to Katrina Kelly-Pitou, yes we should.
Bitcoin mining is a heavily inefficient function. Mining uses up an awful lot of power and therefore costs a lot to do. Moreover, because of the high energy use, the carbon footprint of a mined Bitcoin is frankly huge.