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?
Actually bitcoin needs only a few electricity because you only do is post. In signature campaign you just consume a minute to post but you need to do it every 30 minutes.