Field measurements of neighborhood-scale air temperature impacts of data centers

Post by mediaman » Tue, Aug 18, 2026, 6:43 PM UTC

savanaly wrote: post #82

sjoedev wrote: post #65

Earlier quoted context omitted.

We’re building data centers in the U.S. at an unprecedented and increasing rate [1]. Is it so hard to imagine that something which was fine at one scale may begin to cause issues at some massively higher scale? If I drink one glass of wine per day, it’s probably fine. If I drink three bottles per day, I’m gonna start having problems. [1] https://ourworldindata.org/grapher/monthly-spending-data-cen...

Complete tangent, but my impression is that one glass of wine per day is "fine", but you're still statistically better off in a non-trivial way by going down to zero. Not counting the benefits of course.... :)

Post by drfloyd51 » Tue, Aug 18, 2026, 6:43 PM UTC

stryan wrote: post #83

dwoldrich wrote: post #35

I cannot figure out if this data center panic is legit or trumped up. There are legitimate nation-state and political entities that would love to create pressure for degrowth in this area. And, pollution and natural resources are a concern, yes, fine, sure. NIMBY happens, I get it ... *BUT*, we've been building huge data centers for decades and they are minuscule compared to the size of the earth. My skeptic meter ma…

Some of it's a panic, but I'm leaning towards many of the concerns being true or at least partially true due to the sheer scale of the construction. The figures I've been seeing are something like half of all current private construction projects are data center related these days and it's the biggest single sector of construction in terms of money spent. It's also a lot easier to protest data centers then AI compani…

Post by K0balt » Tue, Aug 18, 2026, 6:44 PM UTC

babelfish wrote: post #90

compass_copium wrote: post #59

Earlier quoted context omitted.

I'm a hobbyist IT enthusiast, not a professional computer guy, but from my point of view there's a big difference between a bunch of servers hosting something people want, like Netflix, and a warehouse full of GPUs running around the clock to make Lobster Jesus or whatever. It's also a proxy for people's feelings on AI--essentially the only way people have to fight back against the new technology that makes eternal g…

Totally agree that it's just a proxy for people's feelings on AI, but my Lobster Jesus is much more important to me than a Netflix show! All of the datacenter usage (for inference) is just serving something people want. Time has already shown that the datacenter for training is also just creating something people want.

Post by duplessitous » Tue, Aug 18, 2026, 6:45 PM UTC

elictronic wrote: post #60

duplessitous wrote: post #10

> The mean air temperature on the upwind side of the facility was approximately 42.7 °C, increasing to 43.5 °C in the neighborhood near the eastern boundary of the data center campus on the downwind side. The observed ΔT of approximately 0.8 °C extended roughly 500 m downwind Seems like we do observe heating but a much smaller average delta T than the title would hint at; I didn't see a max distance they evaluated ov…

The title is correct. You are looking at average temperature rise. The article states by up to which is the maximum temperature rise. If you catch me on fire my average temperature rise doesn't go up very much, but I have the barest of hints that it might have an impact.

Post by duplessitous » Tue, Aug 18, 2026, 6:46 PM UTC

Groxx wrote: post #99

duplessitous wrote: post #89

Earlier quoted context omitted.

> The whole data center heat/water thing is like not even in the top 100 risks/issues related to AI, but it's all people seem to care about. Why is that? Another commenter said the concerns about heat/water were because they were being built next to their houses, and I responded to that. I am specifically asking this person why they are touting water usage and not noise pollution as the main problem. I was not asking…

It can be an issue for the community in the same watershed, as well as being affected by what they do with any waste water. There have been quite a lot of extremely-drawn-out lawsuits about them drawing more than claimed, dumping hot water into streams and damaging the ecosystem, and polluting other water sources by dumping dirty water into drinking water affecting areas. I agree the total usage isn't particularly la…