A United Nations University study claims that #Bitcoin required more water than 660,000 Olympic swimming pools in 2020-2021.
Why this abstruse comparison is essentially directed against the switch to renewable energies, here:
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Discussion
United Nations University - against #Bitcoin or actually against the energy transition?
The United Nations University published a study claiming that in 2020-2021 BTC mining had a water footprint equivalent to the volume of over 660,000 Olympic swimming pools.
https://inweh.unu.edu/wp-content/uploads/2023/10/Bitcoins-Environmental-Footprint-UNU-INWEH-2023.pdf
A closer look shows that this does not mean cooling water for Bitcoin miners, but rather the water consumption for the respective electricity production. 
The authors point out the paradox that in countries with high gas-dependent electricity production (e.g. Iran), Bitcoin's water consumption is lower, but its CO2 emissions are higher. 
Immediately afterwards it is explained that mining in countries (e.g. Canada and Norway) with electricity production with a high proportion of water-intensive, renewable energies (then called hydroelectricity) is responsible for this high water consumption. 
The authors are actually saying that the energy transition to renewable energies is bad because it uses too much water. It's unbelievable. Or is it just Bitcoin that isn’t allowed to do that?
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