Update, March 16, 2018 Currently the bitcoin energy consumption is ridiculous, and so much more so the entire cryptocurrency space. This is a know issue, that is being dealt with. But here’s the thing. I won’t buy a gas guzzling car, I won’t invest in oil stocks, I turn my lights out when I’m not using them. Until this is solved, either by all cryptos going carbon neutral and/or a _much _more efficient blockchain is adopted, there are many other investment vehicles I can speculate though.