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

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

#61

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?

The impact is highly geography dependent.

For example, the lower Colorado River basin is facing heavy drought, extremely low reservoirs, and federally mandated cuts in water shares. Awkward time to build water intensive infrastructure, even if the usage is relatively low.

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

#62

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…

I've done a bit of research into it, and I think it's a mix.

The energy thing is exaggerated. Want to compensate for a week of heavy AI coding usage? If you drive to work, telecommute for one day. Skip one long-distance DoorDash order. Cars use tons of energy, a lot more per-user than the fraction of data center capacity you're using with your AI stuff. A burrito on DoorDash delivered using an average MPG gas car uses something like a week's worth of heavy AI usage in energy.

The water thing is region-specific and where is a problem it's due to incompetent or corrupt goveranance. Bottom line is that if a data center is using too much water, it means they're not paying enough for that water. Make them pay more for their water and they'll magically discover closed cycle cooling.

The noise thing is in some cases real, and needs to be fixed with local regulation or a class action suit by neighbors to force them to deal with the noise problem.

I am a little puzzled though by where these things are being built. Phoenix? Other than cheap solar power I can't tell why you'd want a data center there given the energy needed for cooling.

Why are we not putting them up in the Arctic circle? Build run-of-the-river hydro in northern Canada and put them way up there. Free cooling, especially in winter. AI is not a very latency-sensitive load so an extra 50ms doesn't mean much.

I suspect state incentives are a reason. The giant Amazon data center proposal in Texas with the giant natural gas power plant sounds a lot like "taxpayer funded indirect fossil fuel industry subsidy." Offer some kind of big state incentive to get a huge natural gas customer with long-term locked-in demand.

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

#63

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…

It is real but it's about the unaccountability, dishonesty, and misanthropy of corporate overlords, rather than about the externalities of data centers per se. See https://news.ycombinator.com/item?id=49180901

It was already a huge problem that powerful people in this world work to enrich themselves with no regard to regular people's wellbeing. The rage about data centers is because it suddenly started happening in everyone's backyard, making the abstract problem into a physically palpable one.

Imo their anger is completely justified. This only gets any better when there is an actual imperical shift towards behaving prosocially and away from mindless profiteering, and people have every right to want that from people in power. I fully expect the path we're on to end in some kind of revolution if nothing changes and there seems to be no sign of anything changing.

In particular, shame on anyone who uses arguments of the form: "it's these company's jobs to maximize profit, therefore they should not be beholden to behaving prosocially; the abstract force of economic growth justifies all iniquities because it will miraculously benefit everyone eventually". This argument is a lie on every count: it's only their job because we've chosen for it to be their job; the force of economic growth famously hurts people all the time; there is no evidence that it will fix everything versus just accelerate burning everything down (quite literally in this case); and finally, people's happiness is proportional more to their ability to trust those in power to care about them and their communities than to their material wealth per se, so trust is the thing they want maximized, not profit--and they are presently starved of it, because the people with power behave like lying manipulative scumbags at every possible opportunity.

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

#64
post #44
post #9

"The attribution of this warming to data center waste heat is supported by the consistent alignment of the temperature signal with the prevailing wind direction across multiple sites, dates, and meteorological conditions. " Well, no? That could also mean that the heat island effect of the (statutorily mandated) employee parking lot is causal.

You can look up the NTT PH1 Datacenter from the study on Google Maps. It doesn't have much of a parking lot but due to poor industrial zoning, it's right next to a residential suburb. It's basically a failure of urban planning.

It's in the middle of a large, disturbed area with big commercial buildings, roads, and parking lots, only some of which are data centers. This type of disturbance tends to get hot in the sun. But the larger question is how they are attributing the temperature at the end of the cul de sac to the data center when the somewhat more obvious reason for a hot spot there is that nothing shades it. That is, the measured cooler streets are shaded by the houses, but the edges of the neighborhood are shaded by nothing.

Anyway the main problem with this paper is it does not have an explanation for why the response isn't linear. If areal density of heat rejection was able to raise air temperatures this amount, then nobody would be able to go anywhere near a thermal power station without being vaporized.

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

#65

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…

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...

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

#66

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…

One strange form that the post-truth era takes is deciding that stances you don't believe in aren't even real. Saves you the trouble of having to engage with them meaningfully.

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

#68

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?

>but it's all people seem to care about.

This is a pretty weird assertion to make on HN when we've had constant AI threads about everything from mass surveillance and job threats to bio-warfare agent creation. Or just simple economic debt and risk. People clearly care about all sorts of aspects. Even in mainstream media there is tons of coverage on many aspects. But if you're talking purely in terms of the law and local activism:

>Why is that?

The way we have things structured (for good and less good reasons) in the judiciary and local politics is heavily biased towards immediate or very short term, concrete, and individualized/divergent harms vs broader societal costs and risks. Water, heat, electrical access/costs, and noise all meet those standards. They can be objectively measured, impose significant immediate burdens on a small population living near the DC while little (and over time) to nothing at all elsewhere, have clearly priceable harms and/or mitigations, and are instantly graspable by everyone regardless of education/research. On a practical level, they also involve a significant degree of local power without diffusion across as many people, including traditional things like zoning. A small motivated group living there can definitely make a difference, and definitely has standing for lawsuits too.

So of course those are the first and most immediately loud focuses in that arena. The broader stuff is also under scrutiny, but at a different scale right?

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

#69

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?

Pretty sure everyone cares about their power bills and water bills going up. The people living next to them care about this other stuff.

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

#70

Earlier quoted context omitted.

Cool, I'll be putting big data ai machine learning data center in your back yard.

No one has ever built a full datacenter in someones backyard...

The referenced 169 MW location is literally across the street from a residential neighborhood, where the article indicates they measured temperature differences[0].

> This gap is significant because many facilities are sited adjacent to residential neighborhoods (Fig. 1), and their air-cooled condenser arrays discharge air at temperatures 8–14 °C above ambient—often exceeding 50 °C during Phoenix summers—with air velocities of 2–4 m/s [15,16], creating thermal plumes that are advected downwind over inhabited areas. For example, the Iron Mountain Data Center (Fig. 1(c)) has cooling equipment located less than 50 m from the nearest three-story apartment building.

[0] https://www.openstreetmap.org/#map=17/33.267398/-111.880313

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