Who owns the reliable information that the network bitcoin uses more than 80% of the countries separately electricity. Bitcoin also multiplied by several times the amount of energy consumed in the last year. Is this really true, who will say? So there are thoughts that bitcoin in a couple of years will be a threat to the energy situation on the planet?
In my opinion, the more the demands of bitcoin maybe more usage of electricity. We are using electronic device in every transactions in BTC that's why it needs electricity. It's a matter of disciplining one's self, if we love our mother earth then it follows the correct usage of consumption of electricity.