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NiyerEnergy: US annual rainfall ~1.8 quadrillion gallons; human consumption is…

2026-08-02 · 20:34 UTC ·@NiyerEnergy ·1 min read

Brief

NiyerEnergy argues US rainfall (~1.8 quadrillion gallons/year) dwarfs human use (~2%), with data centers consuming roughly 1/1,000th of human consumption and says replacing water cooling with air cooling plus conservation yields an effective carbon cost under $2/ton. Blue Georgia and Erin Brockovich cite larger golf-course/data-center figures, but a community note and CBS News say those are about ten times too high and project data-center cooling at ~39 billion gallons in 2028—still lower than some other uses.

Why it matters

NiyerEnergy: US annual rainfall ~1.8 quadrillion gallons; human consumption is ~2% of that (excluding baseline plant evapotranspiration).

Key details

  • NiyerEnergy: Data centers consume about 1/1,000th of human consumption; switching from water to air cooling combined with conservation yields an effective carbon cost below $2/ton.
  • Blue Georgia / Erin Brockovich claim golf courses can use ~500 million gallons/year and 'super AI' data centers up to ~1.5 billion gallons/year; a community note and CBS News (2026) say those figures are ~10× too high, estimate total cooling water ~39 billion gallons in 2028, and state all US data centers use less than half the water of golf courses.
Source evidence

So it rains about 1.8 quadrillion gallons per year in the US.

Human consumption is about 2% of that (ignoring natural plant evapotranspiration baselining).

Of that, data centers (the internet, cellular, everything digital) consumes ~1/1000th, primarily to conserve energy.

People pushing for data centers to do air cooling instead of water cooling (paired with conservation investments) have an effective cost of carbon of well under $2/ton.

Blue Georgia (@BlueGeorgia)

Erin Brockovich: "An average golf course could use 500 million gallons a year. But these super AI data centers can go up to 1.5 billion gallons of water per year."

Video

Community note: Extremely misleading. Both numbers are too high by a factor of ten. And all US data centers put together use less than half the water of golf courses.

Water use for cooling is expected to reach 39 billion gallons in 2028, still less than is used for restaurant dishwashing.

cbsnews.com/projects/2026/…

— https://nitter.net/BlueGeorgia/status/2083548318672564723#m