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@stayoutoftherz if you read it carefully you'll see it is actually based on the research of Digiconomist, which, according to Google Scholar has been cited and used in many whitepapers and articles. So I'd be carefull with just dismissing this for lack of evidence.

Check out the index here: https://digiconomist.net/bitcoin-energy-consumption

@seersalomon I did read it carefully, and still think the article makes no sense; the energy consumption includes the mining. WIth VISA you don´t have mining, so what´s the point to compare them?

@stayoutoftherz With Visa you have the need for offices and employees worldwide. That could be compared to the same resources needed which are now needed for mining. All those offices need to be powered as well. Employees need to travel (so not only energy consumption but addition CO2 as well when you think of it!).