Would it make a difference if all bitcoin mining was done 100% from solar energy?I don't know, but there's plenty of irresponsibility to share around. From the FT: 'Each bitcoin transaction uses the same amount of power as 436,000 through the Visa payment system.' BTC is bad enough, but it really riles me when so-called green companies like Tesla turn out to be exactly the opposite. If Tesla can't be bothered to be properly green, why should consumers? It sets an extremely poor example and gives fuel (no pun intended) to those who are sceptical about green initiatives.