If it's real figure that is pretty bonkers indeed, but if a large proportion of the world's money and information wound up stored on the Bitcoin chain then it starts to look like a pretty good deal.

At present it's nowhere near that and that amount of profligacy is not good however you want to look at it. But it's possible it'll drive renewable developments and fill existing renewable surpluses such as the hydro plants in China that have a massive excess of unused power that miners have been using.

Considering how quickly the hash rate is rising I wonder how much more headroom is left before it becomes truly obnoxious.