The whole post is heavily subjective and skewed heavily towards Bitcoin. Taking Gold as a "counter" and throwing around random statistic "I'll assume 10%" is a move that really shows you that the post is not to be taken seriously. Should we replace all Gold mines with BTC mines? But how will we make the hardware for mining BTC then?
Not to mention that it isn't even talking about the obvious question - on top of all current pollution, is adding Bitcoin as another huge source of pollution worth to humanity or is it just individual/collective greed of people with vested interest in Bitcoin that is propagating it as such?