Elon Musk talked about how BTC mining with electricity isn't environment friendly but he invented electric cars, in near future if this actually becomes popular electric cars will be available world wide and billions of vehicles will be charged by electricity so how is this environment friendly?
The CEO of Binance "Changpeng Zhao" already tweeted about this topics. I believe so that energy isn't problem, how to minimize the effects from environment. Green energy or renewable energy could be the best choice but