Is a claim that a massive data center will use only 4 Olympic swimming pools of water per year accurate?

No.

Microsoft data centers in Mount Pleasant in southeast Wisconsin are projected to use much more water annually than would fill four Olympic-size pools.

https://wisconsinwatch.org/2026/03/wisconsin-data-center-water-olympic-swimming-pools-microsoft-mount-pleasant-racine/

Big Tech gets up in the morning and it lies. It's lies for lunch. It lies in the afternoon, and it lies in the evening. And before it goes to bed, it lies.

Lies, lies, lies