Using the same method of estimation as this Time article: https://time.com/article/2026/06/03/ai-global-water-resources-un-report/

We, right now, unfortunately use water equivalent of 66 Earths of human needs.

These scientists used a very funny trick, which would give you an F in High School (but they are PHDs and Professors therefore that doesn't apply):

They assumed modern humans don't need clothes, transportation, infrastructure or electricity. Heck, they even assumed we don't need any food. Only the water we need at home to survive like drinking.

Since they clearly represent the "Scientific Method" (read: sensationalism) I too, inspired by their great minds, decided to extrapolate it to non-datacenter needs. Have a nice day and don't trust anyone, regardless of their titles and positions. And never expect media or politicians to do any research for you.