How much water do AI data centers really use? US protests grow

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“Protect our water,” “Water for people not AI,” “Don’t mess with our water,” declare protest signs from Texas to New Mexico to Arizona. Angered by water use, energy consumption, and pollution, locals are increasingly protesting the rapid expansion of data centers in the United States as tech companies work to rapidly expand capacity for AI.

Many data centers rely at least partly on water to absorb heat from air or surfaces, and then cause cooling as it evaporates, just like sweating keeps our bodies cool. The processors inside data centers can reach internal temperatures of up to 176° Fahrenheit, for the same reasons that an overtaxed laptop heats up.

But while there’s little doubt that data centers are consuming significant amounts of energy , water consumption is more complicated. Claims circulating online bring scant clarity, ranging from articles claiming that chatbots can consume 500 ml of water per query to some online commentators declaring AI's water issue to be nonexistent. And the consumption data from large tech companies themselves are often incomplete and inconsistent.

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