Can Pee Really Cool Data Centers? Jason Kelce's Viral Joke Explained

TL;DR
- Former NFL star Jason Kelce went viral for joking that data centers should be cooled with urine instead of wasting clean drinking water, sparking a real debate about data center water consumption.
- Modern data centers use millions of gallons of potable water per day for evaporative cooling, raising serious sustainability concerns as AI demand explodes.
- While urine is 95% water, its salts, urea, and organic compounds make it corrosive and inefficient for cooling without extensive treatment — but treated wastewater and other non-potable alternatives are already being adopted as viable solutions.
Where Did This Joke Come From?
If you missed it, the internet had a field day this week after Jason Kelce riffed on his New Heights podcast about the massive resource footprint of AI data centers. Amid reports that a single large data center can consume as much water as thousands of homes, Kelce quipped: why are we using perfectly good drinking water to cool servers when everyone produces gallons of free, warm liquid every day?
The clip, delivered with Kelce's signature deadpan humor, racked up millions of views on TikTok and X within hours. Fans ran with it, creating memes about "crowdsourced cooling" and "Pee-Powered AI." But beneath the bathroom humor, Kelce accidentally hit on a very real and urgent tech infrastructure problem.
Why Data Centers Are So Thirsty
Data centers are the physical backbone of everything from ChatGPT to Netflix to cloud storage. And they get incredibly hot. A single high-density AI server rack can generate more heat than several household ovens running at once.
To prevent servers from melting down, most hyperscale facilities rely on evaporative cooling systems. These systems work like a giant swamp cooler: they evaporate fresh, potable water to pull heat away from the servers and expel it outside. It's cheap, effective, and extremely water-intensive.
The numbers are staggering. Recent sustainability reports from major operators show that a large hyperscale data center can consume between 1 to 5 million gallons of water per day, depending on climate and cooling design. In 2024 and 2025, Google, Microsoft, and Amazon all reported total annual water consumption in the billions of gallons, with a significant portion attributed to data center cooling. As generative AI workloads have surged, so has the water footprint, with cooling demand spiking 15-20% year-over-year for some providers.
This has created tension in drought-prone regions like Arizona, Texas, and parts of Spain and the American West, where new data center projects have faced community pushback for straining local drinking water supplies. The industry metric to watch is WUE, or Water Usage Effectiveness, which measures liters of water used per kilowatt-hour of energy consumed. The push is to drive that number as close to zero as possible.
Could You Actually Cool a Server With Pee?
On a purely chemical level, the joke isn't as crazy as it sounds. Human urine is about 91-96% water, so in theory, it could absorb and transfer heat.
In practice, it's a terrible coolant in its raw form. Here's why engineers aren't lining up to plumb urinals directly into server racks:
First, urine is full of dissolved salts, urea, phosphates, and organic compounds. When heated and evaporated, those solids don't disappear. They leave behind severe scaling and mineral buildup that would clog pipes, coat heat exchangers, and destroy cooling towers in a matter of days. It would also be highly corrosive to the metals like copper and aluminum used in cooling loops.
Second, there's the biological problem. Urine is not sterile once it leaves the body and is an ideal breeding ground for bacteria. In a warm cooling tower, it would create massive biofouling, foul odors, and a serious public health hazard for workers.
To make urine usable, you would need to purify it first through filtration, reverse osmosis, or distillation to extract the clean water. At that point, you're essentially just making recycled water — which is possible, but requires so much energy and infrastructure that you lose the "free and easy" benefit Kelce was joking about. NASA does exactly this on the International Space Station, recycling astronaut urine into drinkable water, but the system is complex and expensive.
The Real Sustainable Solution: Not Pee, But Gray Water
Kelce's punchline actually points to the real solution the industry is moving toward: stop using drinking water at all.
Instead of urine specifically, many data center operators are shifting to alternative, non-potable water sources. The most promising is treated wastewater, also known as gray water or reclaimed water.
For example, several new facilities in California and Arizona are now designed to run on municipal reclaimed water that has been treated to a level safe for industrial use but not for drinking. Others are adopting closed-loop liquid cooling, where water is recirculated in a sealed system instead of being evaporated, cutting consumption by up to 90%. Some coastal projects in Europe and Singapore are even experimenting with seawater cooling.
Companies like Meta and Microsoft have publicly committed to replenishing more water than they consume by 2030 and are increasingly siting new data centers where they can use air-cooling in colder climates or recycled water in warmer ones. Google has also piloted the use of treated wastewater at its facilities in Georgia and Finland.
The Bottom Line
Jason Kelce was joking, but he wasn't wrong to ask the question. Using pristine drinking water to cool the internet's infrastructure is increasingly unsustainable, especially as AI makes data centers hotter and thirstier than ever.
You won't see a "bring your own urine to cool the cloud" program anytime soon. Raw urine would wreck a cooling system faster than it would cool it. But the core idea — replacing potable water with waste fluids that would otherwise be flushed away — is exactly where the future of green data center design is headed. The next generation of data centers won't run on pee, but they very well might run on the cleaned-up water that comes from it.
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