# AI & The Permanent Hum: Why Nobody Can Make It Stop > Source: > Published: 2026-08-02 01:00:30+00:00 ## AI & The Permanent Hum: Why Nobody Can Make It Stop There is a particular cruelty in a sound that never stops. A single loud noise is an event; you flinch, you brace, and then it passes and your nervous system stands down. A sound that runs at fifty-something decibels around the clock, day after day, month after month, is something else entirely. It never resolves. It offers no interval in which the body can register that the threat is over, because by the standards of an evolved animal listening for danger, the threat is never over. On Louise Avenue in Dowagiac, a small city in the south-western corner of Michigan, residents have spent the better part of a year living inside exactly that condition: a mechanical drone, measured by neighbours at between fifty and sixty-two decibels at all hours, comparable to the interior of a moving car or the noise floor of a busy open-plan office, sustained without interruption, emanating from a data centre that runs because somewhere, at scale, machines are learning. I keep returning to a phrase one of the residents used to describe it. It is, he said, like having a vacuum cleaner running all the time. Not a roar, not a bang, nothing you could point a camera at and make go viral. Just a vacuum cleaner, in the next room, forever. That is the texture of the thing, and it is precisely the texture that makes it so hard to legislate, litigate, or even talk about. The permanent hum is sub-catastrophic by design. It does not kill anyone in a way a coroner could certify. It just sits underneath everything, a low industrial tinnitus imposed on a residential street, and it will not go away, and until very recently almost no legal or democratic mechanism in the United States was built to make it. ## The Anatomy of an Always-On Sound To understand why data centres hum the way they do, you have to understand what they are actually fighting, which is heat. A modern facility packed with servers, and increasingly with the power-dense graphics processors that train and run large AI models, converts prodigious quantities of electricity into computation and, as an unavoidable by-product, into warmth. Left unchecked, that heat would cook the hardware within minutes. So the entire architecture of a data centre is, in a sense, an enormous machine for moving heat out of a building faster than the silicon can generate it, and every stage of that heat-removal process makes noise. The Environmental and Energy Study Institute, a non-partisan body founded by members of the United States Congress, laid this out in unusually plain terms in an analysis published on 23 March 2026 by Miguel Yañez-Barnuevo. Cooling systems, the institute noted, account for roughly forty per cent of a data centre's electricity use, and they are the dominant source of the sound. Air chillers produce a continuous humming. Banks of fans — and a hyperscale facility contains thousands of them — generate a whirring that merges, at distance, into a single tonal wall. Cooling towers can emit up to seventy A-weighted decibels within four hundred feet. Inside the server halls themselves, where the fans live closest to the machines, the ambient level can reach ninety-six decibels, a figure that sits above the threshold at which sustained exposure is considered hazardous to hearing. Then there are the generators. Every serious data centre keeps diesel backup generators on site to ride through grid failures, and these are periodically tested, often monthly, under load. An industrial-scale diesel generator can produce up to a hundred and five decibels, which the institute compares to a jet passing overhead. A newer and louder wrinkle is the move by some operators towards on-site gas turbines to power facilities independently of a strained electrical grid; the institute counted forty-six planned American data centres intending to use off-grid turbines for continuous operation, machines whose acoustic signature is closer to that of a small power station than a neighbour's air-conditioning unit. What matters most for the people living nearby, though, is not the peak decibel figure but the character of the sound. Data centre noise is broadband and, crucially, it carries a strong low-frequency component. Low-frequency sound behaves differently from the mid-range frequencies our regulations and our decibel meters are optimised to capture. It travels further. It bends around obstacles and slips through walls that would stop higher tones. It is poorly attenuated by the double glazing and insulation that keep out traffic. And it can be perceived as much through the body — a pressure, a vibration, a felt presence in the chest and the skull — as through the ears. Kyle Hart of the National Parks Conservation Association, quoted by the institute, made the technical point that because data centre noise spans multiple frequency ranges, it is genuinely difficult to measure, which is a polite way of saying that the instruments most local authorities own were never designed to characterise it. This is where a strange and important sub-controversy enters the story. Across a growing number of host communities, from Chandler in Arizona to Granbury in Texas, residents have reported symptoms they attribute not to the audible drone but to something below the threshold of conscious hearing altogether — infrasound, the very low-frequency energy that a standard A-weighted decibel reading, which deliberately discounts low frequencies to approximate the sensitivity of the human ear, will systematically under-report. Reporting by outlets including Tom's Hardware and Futurism has documented residents complaining of a noise that barely registers on their meters yet leaves them nauseous, dizzy, and unable to sleep. I want to be careful here, because the science linking environmental infrasound at these levels to specific health outcomes is genuinely contested and the evidence is thinner than advocates sometimes suggest. But the mismatch itself is the point. When the official measurement tool and the lived experience diverge this sharply, the measurement tool stops being a neutral arbiter and becomes an instrument of dismissal. ## What Fifty Decibels Actually Does to a Body The intuitive objection to the Dowagiac residents' complaint is that fifty to sixty decibels simply is not very loud. It is quieter than conversation, far quieter than a lawnmower, a fraction of the energy of the jet the generators are compared to. Surely, the reasoning goes, people can habituate to something so modest. The science of environmental noise says otherwise, and it says so with a consistency that ought to unsettle anyone inclined to wave the problem away. The foundational document here is the World Health Organization's Environmental Noise Guidelines for the European Region, launched on 10 October 2018 after years of systematic review of the epidemiological evidence. The WHO's central finding is that noise is not merely an annoyance but a genuine determinant of physical health, operating through pathways that do not require the sound to be loud enough to damage hearing. Chronic exposure acts as a physiological stressor. It elevates levels of stress hormones, raises blood pressure, and disturbs sleep architecture even when the sleeper does not consciously wake, and over years those insults accumulate into measurably increased risks of hypertension, ischaemic heart disease, and other cardiovascular outcomes. The guidelines emphasise that night-time exposure may matter most of all, because it is during sleep that the body is meant to perform its cardiovascular recovery, and a hum that never lets the autonomic nervous system fully power down denies it that repair. The thresholds the WHO recommends are strikingly low, which is exactly why they are relevant to Dowagiac. For road traffic, the guidelines advise keeping average noise below fifty-three decibels over the day-evening-night period and below forty-five decibels at night, above which the panel found an increased risk of adverse health effects. For wind turbines the recommended limit is forty-five decibels. An older WHO benchmark for protecting sleep put the ideal level inside a bedroom at around thirty decibels of continuous sound. Set those figures against a residential street registering fifty to sixty-two decibels at all hours, including throughout the night, and the Dowagiac readings are not marginal exceedances of health-based guidance. They are comfortably above the levels at which one of the most cautious and methodologically rigorous public-health bodies in the world says harm begins — and they are being produced not by a motorway that at least quietens at three in the morning, but by a facility engineered to be identical at three in the morning as at three in the afternoon. The low-frequency dimension sharpens the concern further. A review of the literature on low-frequency noise and human health published in the journal Applied Sciences, covering studies from 2016 to 2019, catalogued a consistent cluster of effects: annoyance as the primary reaction, frequently accompanied by headaches, difficulty concentrating, palpitations, and disturbed sleep. This is not a fringe finding. Low-frequency noise is more annoying, decibel for decibel, than higher-frequency sound, and it is annoyance in the specific technical sense used by noise researchers — a chronic, low-grade stress response that itself has downstream health consequences. When a plaintiff's household in Dowagiac reports that a pregnant neighbour cannot spend more than half an hour outside without a headache, or that a wife's Parkinson's disease has deteriorated since the facility expanded, the correct scientific posture is caution about any single causal claim while recognising that the general phenomenon — chronic low-frequency environmental noise producing headache, sleep disruption, and physiological stress — is exactly what the literature would predict. These are, in the language of the filings, allegations. They are also entirely consistent with what decades of noise research would lead you to expect. ## A Law Written for Barking Dogs and Late Parties Here is the crux of the matter, and the reason Dowagiac is not merely a local dispute but a document of a wider failure. The legal instrument the residents have been forced to reach for — the doctrine of nuisance, and the municipal noise ordinance that sits beneath it — was never designed for a facility like this. It was designed for barking dogs, late-night parties, a neighbour's poorly sited air-conditioning condenser. It assumes an intermittent, identifiable, negotiable disturbance between private parties of roughly comparable standing. It does not contemplate a permanent industrial process running twenty-four hours a day at the property line of a residential zone. Consider the mechanics. The facility on East Prairie Ronde Street is operated by Alliance Cloud Services, LLC, a subsidiary of Hyperscale Data, Inc., and has run since March 2022, drawing something in the region of thirty megawatts to power a mixture of digital-asset mining — bitcoin — and high-performance computing. Dowagiac revised its noise ordinance in March 2026, establishing limits of sixty-five decibels during the day and fifty-five decibels overnight in residential areas, and on 1 April 2026 Mayor Patrick Bakeman sent an open letter to the company's chief executive, William Horne, pressing for transparency: announce immediately which land you are buying, and submit plans to the city within forty-five days. On paper this looks like a functioning local response. In practice, an ordinance framed around A-weighted decibel caps is poorly matched to a low-frequency tonal source; a facility can sit under the numerical limit on a standard meter while producing exactly the penetrating, sleep-destroying character of sound the residents are complaining about. The measurement approved by the rule and the harm experienced by the resident can point in opposite directions. And then there is enforcement, where the mismatch stops being technical and becomes structural. It would be easy to assume, from the outside, that nothing has been enforced at all. That is not what happened. Dowagiac did issue notices of violation under its ordinance. It is what happened next that matters. Hyperscale challenged those notices immediately, disputing the city's readings and its methodology, and as the city manager, Kevin Anderson, told residents at a council meeting on 13 July 2026, they are now tied up in litigation. This is the crucial thing to understand about municipal enforcement against a corporate entity of this size: the problem is not that the citation is never issued. The problem is that the citation is absorbed. A small city can write a ticket. A company with a legal department can contest that ticket into abeyance, and keep contesting it, and the arithmetic of that exchange is brutally simple — the appeal costs the company a fraction of what compliance would, and the hum continues, unabated, for the entire duration of the argument. A fine that would ruin a homeowner is a rounding error to a data centre operator whose expansion plans reportedly involve raising its power draw from thirty megawatts towards three hundred and forty, and even that rounding error need not be paid this year, or next. An injunction against a hyperscale facility, meanwhile, raises the spectre of shutting down critical infrastructure, which courts are understandably reluctant to order. Enforcement here is not absent. It is simply outlasted. Nuisance law compounds the mismatch with its own burdens. To prevail, plaintiffs must generally show that the interference with the use and enjoyment of their property is both substantial and unreasonable, a standard that invites the operator to argue about ordinary sensibilities, about the social utility of the enterprise, about whether the complainants are simply unusually sensitive. It places the cost and labour of documentation on the victims, who must hire acousticians, log readings, and prove their own suffering, while the party generating the harm continues to generate it throughout the years such litigation takes. The federal class action filed in the United States District Court for the Western District of Michigan on 26 May 2026 — brought on behalf of owner-occupants and renters within a mile of the site, a class the complaint estimates at around thirteen hundred residential properties — is an attempt to overcome that asymmetry through sheer aggregation. It is a rational response to a broken tool. But the fact that a neighbourhood must assemble a federal class action to address the noise from a single building tells you how far the ordinary machinery of local governance has been outrun. The shape of that case is itself instructive. The plaintiffs' attorneys describe it as the first proposed class action in the country seeking relief for data-centre noise, and as pleaded it is framed around property damage — the loss of the use and enjoyment of a home, and the diminution of what that home is worth — rather than personal injury. That is sound strategy, because property harm is the harm nuisance law was built to see. But look at what the framing does. The headaches, the ruined sleep, the deteriorating health enter the case chiefly as evidence that a house has become less pleasant to live in, rather than as injuries in their own right. The law translates a body into a balance sheet, because the balance sheet is the only dialect it speaks with any fluency, and a great deal of what these residents are actually complaining about does not survive the translation. Meanwhile the clock runs at the defendant's pace. Hyperscale sought and was granted an extension to respond to the complaint, pushing its answer out to 24 July 2026 — a delay of no consequence whatsoever to a company, and of considerable consequence to someone who cannot sleep. ## The Permits That Were Never Filed The most quietly astonishing detail in the Dowagiac story is not the decibel readings. It is that, according to the residents, the city council itself cannot answer basic questions about the facility's expansion because it has received no permit applications from the operator, and cannot say what is coming next. Sit with that for a moment. The people whose job is to govern the physical development of the city, who hold the democratic mandate to decide what gets built and where and under what conditions, are reduced to reading the news like everyone else to find out that a facility in their jurisdiction intends to more than double in size and multiply its power consumption by a factor of ten. This is what I would call the democratic deficit at the heart of the AI build-out, and it is structurally distinct from the noise itself. Data centres frequently arrive through a lattice of arrangements — pre-existing industrial zoning, economic development agreements negotiated out of public view, land purchases through intermediaries — that can allow a great deal to happen before anything reaches a public hearing or requires a discretionary permit. The site at Dowagiac sits within an established business park, which is precisely the kind of pre-approved industrial envelope that lets a use expand without the friction of fresh democratic scrutiny. From the operator's perspective this is simply efficient. From the perspective of a resident on Louise Avenue it means that the single largest change to their acoustic environment in a generation was decided somewhere they were never invited, by people they never elected, through a process that produced no document they can inspect and no meeting at which they could object. The public record of this summer bears the vacuum out with painful clarity. On 1 July 2026 the plaintiffs' attorneys held a meeting at the Dowagiac public library; residents packed a room built for fifty and rotated in and out of it because there was nowhere left to stand. On 13 July the city council convened a special data centre forum and moved it out of its usual chamber to the Dowagiac Middle School Performing Arts Center in anticipation of the turnout. Some three hundred people came. William Horne appeared in person, and the company's representatives stayed in the room through public comment, which is more than many operators in comparable disputes have done. What he offered was a list of commitments. Cryptocurrency mining would cease within three months, which he expected to make the noise more manageable. A permanent wall would go up on the Louise Avenue side of the property. The business would transition towards AI computing and humanoid robot manufacturing, an investment he put at a hundred million dollars and which he suggested might mean something like five hundred jobs — with no guarantee that those jobs would be permanent, and none that they would go to anyone local. The newly acquired forty-eight and a half acres, he said, had been bought to keep the seller happy and to create a natural buffer that would be maintained; where the physical expansion would actually go, he did not clarify. And then the offer that tells you the most about the whole affair. Horne said the company would buy the homes of nearby residents at fair market value and cover their moving costs, because he did not want neighbours to feel, in his words, trapped, with his company as the cause of it. Read charitably, that is a decent impulse. Read structurally, it is an admission and a strategy at once: the remedy on the table is not abatement but exit. Not we will stop making the noise, but we will help you leave the place the noise is. The residents were not charitable about it. One of them, Peter Gibbons, put the objection with a precision no lawyer improved upon: if somebody has got their boot on your head, when they lift their boot off your head, they are not a hero. Another said he would need more than three times his property's value before he would even consider selling. A third asked why a stretch of greenspace that was already functioning as a buffer needed to be owned by the company in order to serve as one. Notice what is missing from all of this. Every commitment made on 13 July was voluntary, offered at a public meeting, unenforceable by anything except reputation. The forty-five-day deadline in Mayor Bakeman's April letter had long since come and gone. A mayor writing an open letter to discover what is being built in his own city is not a functioning permitting process; it is the improvisation of a man who has discovered he has no formal lever to pull. And this is not incidental to the noise problem; it is causally upstream of it. Had there been a genuine permitting process — one requiring an acoustic impact assessment, public notice, and enforceable conditions on continuous low-frequency emissions before a single server was energised — the hum might never have reached the residents' bedrooms in the first place. The absence of that process is why the only remaining venue is a courtroom, years too late, and why the best offer on the table is a cheque and a removal van. ## From Dowagiac to Mount Pleasant It would be comforting to treat Dowagiac as an aberration, a single badly sited facility in a single unlucky town. It is not. It is the leading edge of a pattern, and the pattern is national. In the same window, residents of Sturtevant, near Mount Pleasant in Racine County, Wisconsin, filed their own proposed class action, on 1 July 2026, in the United States District Court for the Eastern District of Wisconsin. Their target is not an obscure operator but Microsoft, and the facility is not a thirty-megawatt outfit but Fairwater, a data centre the company has promoted as among the most powerful AI installations in the world: a three-hundred-and-fifteen-acre campus with a final bill put at seven point three billion dollars, which began bringing equipment online in April 2026. Three Sturtevant residents — Garret Ostergaard, David Wade and Joy Wade — brought the suit on behalf of the more than a thousand households the complaint places within a mile and a half of the site. It alleges unreasonable and excessive noise from diesel generators and heating, ventilation and air-conditioning systems — chillers, cooling towers, air-handling units, condenser fans — the identical acoustic cast of characters as in Michigan. It describes residents driven indoors, and Ostergaard having to switch his work shift because he could no longer sleep, and it adds construction noise and light pollution to the charge sheet. Microsoft, for its part, has acknowledged the sound, attributing it to cooling fans, and stated in a June update that its engineers and consultants investigated on site and put mitigations in place. The gulf between a corporate assurance that mitigations are in place and a class action alleging the noise persists is the gulf this whole story lives in. The Environmental and Energy Study Institute's March analysis makes clear that Dowagiac and Mount Pleasant are two points on a curve. It documents a spreading rash of near-identical complaints: Chandler, Arizona, where a neighbourhood battled a humming facility for years and the city eventually tightened its zoning and rejected a new proposal; Prince William County, Virginia, in the densest data-centre corridor on Earth, where residents reported noise exceeding sixty decibels and one operator began retrofitting acoustic shrouds; Greenbrier, Arkansas, and Granbury, Texas, where communities living beside cryptocurrency-mining and computing facilities reported a catalogue of vertigo, nausea, elevated blood pressure, migraines, and insomnia; Southaven, Mississippi, where an installation running numerous gas turbines drew complaints about sleep and air quality alike. Northern Virginia alone hosts around three hundred operating data centres, something like fourteen per cent of the global total, and by the institute's account roughly a third of the Virginia facilities sit within two hundred feet of a residential zone. The geography of the AI boom is, increasingly, the geography of someone's back garden. Southaven has since moved from complaint to court. In June 2026 residents sued over the noise from the gas-turbine plant that powers Elon Musk's xAI data centres nearby, naming the company and its subsidiary MZX Tech, and describing much of what you would expect by now — high-pitched squealing, continuous engine roar, low-frequency rumbling, tonal humming. What lingers from CBS News's reporting on that case, though, is not the pleadings. It is the counsel offered to a homeowner who could not sleep. The mayor's advice was to consider selling. Set that beside the buyout cheques circulating on Louise Avenue and the pattern is unmistakable and, I think, genuinely important: across entirely unrelated disputes, in different states, against different companies, the remedy converging on these residents is not that the noise will stop but that they will go. Exit is being offered where abatement is owed. A nuisance regime that ends by relocating the neighbour rather than quieting the machine has not resolved the nuisance; it has merely found a way to stop hearing about it. The trend now has professional observers, which is its own kind of milestone. On 13 July 2026 WilmerHale published a client alert titled 'Data Centers in Court', surveying what it called an emerging wave of nuisance, environmental and land-use litigation and cataloguing suits in Michigan, New Jersey, Mississippi and New York. Faegre Drinker followed in the same month with guidance for operators on how to avoid becoming the target of a nuisance suit in the first place. When defence-side firms begin publishing advice on how not to get sued by the neighbours, the category has arrived. What unites these cases is not a rogue operator but a category error baked into the whole enterprise: the siting of always-on, industrial-scale thermal machinery in or beside places where people are trying to sleep, backed by an assumption that existing environmental noise rules — which, as the institute notes, were largely written with intermittent nuisances and traffic in mind — would somehow suffice. They do not suffice, and the class actions are the sound of that assumption breaking. ## The Regulator That Walked Away At precisely the moment communities most needed a national floor of protection, the federal government explicitly declined to provide one. On 10 June 2026, speaking at an industry energy summit, the Administrator of the Environmental Protection Agency, Lee Zeldin, announced that the agency would not pursue any nationwide environmental requirements or recommendations targeting the AI data-centre industry. The appropriate practices for each facility, he said, were a matter for states and local communities rather than for the EPA. The decision spanned water, air, and — by direct implication — noise. The agency that retains statutory authority over environmental noise, and that once ran an Office of Noise Abatement and Control, formally handed the entire question back to the very local governments that Dowagiac has just demonstrated are structurally incapable of managing it. The historical irony here is bitter, and the institute's analysis lays it out. The United States actually built a federal noise-control apparatus in the 1970s: the Noise Control Act of 1972 gave the EPA authority to address environmental noise, and the Quiet Communities Act of 1978 extended it. Then, in 1981, the Reagan administration defunded the Office of Noise Abatement and Control, leaving the underlying statutes on the books but stripped of the staff and money to act on them. For more than four decades, federal noise policy has therefore been a hollow shell — the legal authority intact, the operational capacity gone — and noise has been left to the patchwork of state and municipal ordinances that the data-centre boom is now overwhelming. Zeldin's June statement did not create the vacuum. It ratified a vacuum four decades in the making, at the exact historical instant when a genuinely new category of always-on industrial noise source was multiplying across the residential map. There is a darker development still, and it is worth stating precisely rather than gesturing at. On 7 July 2026 the EPA published a proposal to eliminate the federal requirement that states provide a thirty-day public comment period before issuing certain air permits — those for facilities classified as minor sources of pollution, a category that routinely covers exactly the backup diesel generators and smaller gas turbines that data centres install by the dozen. Under the proposal it would fall to each state to decide whether any public comment is offered at all. The agency's own account of its purpose is admirably candid: the rulemaking, it says, is intended to reduce administrative burden and responsibly speed up permitting, supporting American economic development and energy dominance. The Sierra Club, which characterises the change as removing the public from the permitting process for data centres, and the Environmental Defense Fund, whose senior attorney has argued that this is a moment for expanding community input on air permitting rather than erasing it, have both objected and called for the proposal to be withdrawn. I want to be careful about interpretation, because reading intent into a proposed rule is a contested exercise, and the reporting from NBC News that first raised the alarm was framed around what environmental advocates fear rather than what the agency has admitted. But the mechanism does not require interpretation. It removes one of the very few formal moments at which an ordinary resident gets to see a permit application before the permit is granted — the moment at which you learn, in time to say something, that turbines are coming to the end of your road. Which is to say that it proposes to remove, at federal level, precisely the thing whose absence in Dowagiac produced everything else in this story. The residents of Louise Avenue did not lose an argument about their neighbourhood. They never got to have one. The minor-source proposal would make that experience the national default rather than a local misfortune. When the referee both refuses to make a call and quietly narrows the window in which the crowd may object, the game is not neutral. ## The Politics of the Hum On Saturday 18 July 2026, opponents of data-centre construction staged a hundred and forty-two protests across forty-two states — the first coordinated nationwide action against the AI build-out. Texas, the busiest state in the country for new construction, hosted the most rallies at eighteen. Georgia had eleven, California eight, and Pennsylvania, Florida and Indiana seven apiece. The convening group, Humans First, chaired by the conservative activist Amy Kremer, frames the fight in explicitly populist and America-First terms, invoking utility costs, water, land use, national security, and the sense that these facilities are, in the group's phrase, forced on communities in backroom deals. That last complaint — the backroom deal, the decision made without you — is the Dowagiac permitting vacuum rendered as a national grievance. The numbers repay a moment's attention, because at first glance they look contradictory. Organisers released no headcounts, and turnout at individual events was frequently modest: around a dozen people in Atlanta, some fifty in California's Imperial County standing about in heat of a hundred degrees Fahrenheit. A movement that can fill forty-two states and not one town square is not a mass movement in the conventional sense, and it would be easy for an industry lobbyist to say so dismissively. I think that would be a misreading. Extraordinary geographic spread combined with thin per-site attendance is exactly the signature you would expect from this particular grievance, and the reason is structural. The complaint is broad — it is nearly everywhere — and it is local — a specific facility, a specific street, a specific hum outside a specific bedroom window — and it is therefore diffuse. It does not concentrate, because the thing being objected to does not concentrate. There is no single site at which to mass, because the sites are everywhere, and each has its own few hundred aggrieved neighbours who mostly want one building to be quieter rather than an industry to be abolished. The map and the headcounts are not competing measurements. They are two readings of the same distributed phenomenon. I find the coalition assembling around this issue genuinely revealing, and worth dwelling on, because it does not map onto the usual political geometry of technology criticism. The organised protest energy here comes substantially from the populist right, animated by land, cost, sovereignty, and distrust of large institutions cutting deals over local heads. Yet the substantive complaints — environmental harm, corporate externalities dumped onto ordinary people, the capture of local government by capital, the health of pregnant women and the chronically ill — are the classic material of the environmental left. A Gallup poll conducted by telephone between 2 and 18 March 2026, with a random sample of around a thousand adults across all fifty states and the District of Columbia, and released that May, found that seven in ten Americans oppose the construction of AI data centres in their local area, with forty-eight per cent strongly opposed and only seven per cent strongly in favour. Half of those opposed cite the excessive use of resources; sixteen per cent cite pollution, and noise sits inside that figure. Opposition on that scale simply cannot be a partisan artefact. The environmental campaigner Erin Brockovich, a figure firmly of the left, has reportedly been gathering thousands of community complaints about these facilities. The hum, it turns out, is audible across the political spectrum, and it is dissolving some of the usual battle lines as it spreads. This matters for how the problem gets solved, or fails to. An issue that unites a Gallup supermajority ought to be politically trivial to address, and the fact that it is not tells you something about the countervailing force. The AI build-out is backed by the largest and best-capitalised companies in the world, framed in the language of national competitiveness and technological destiny, and increasingly treated by governments as strategic infrastructure to be accelerated rather than constrained. Against that, a neighbourhood on Louise Avenue has a decibel meter and a lawyer. The permanent hum is, in this sense, the sound of a profound asymmetry of power — the physical residue, in a residential street, of decisions taken at a scale and altitude where the people who must live beside the result were never a variable in the equation. ## What Managing the Hum Would Actually Require It would be a failure of nerve to catalogue all this and offer nothing. The Dowagiac case is not evidence that data centres cannot coexist with neighbourhoods; the mitigation technology largely exists. It is evidence that the mechanisms for compelling coexistence do not. So what would actually close the gap? Start with measurement, because measurement is where the current failure begins. Any noise standard applied to data centres must be designed for their actual acoustic signature, which means it cannot rest on A-weighted decibel caps alone. It needs to characterise low-frequency and tonal content specifically — the C-weighted and narrow-band measures that capture the penetrating hum an A-weighted reading discounts — and it needs to be assessed at the affected façade, over sustained periods, including through the night. The institute's own catalogue of solutions shows the engineering is not exotic: acoustic enclosures and shrouds, fan silencers and attenuators, sound-deadening barriers and berms, quieter chiller technology, immersion cooling that dispenses with banks of screaming fans, and the simple discipline of siting the loudest equipment away from the property line. Amazon's retrofitting of acoustic shrouds in Virginia and Microsoft's claimed mitigations in Wisconsin are tacit admissions that the noise is controllable when a company is made to control it. So, for that matter, is the wall Hyperscale has now promised for the Louise Avenue boundary — an engineering solution that was available on the first day of operation and arrived in the fourth year, under litigation, as a concession. The variable is not capability. It is obligation. That obligation has to be created before the facility is built, not litigated after. The single most important reform is to fold a binding acoustic impact assessment, with enforceable continuous-emission conditions, into the permitting process for any large data centre sited near residential land — the very process that appears to have been bypassed in Dowagiac. Permits should be public, conditions should be measurable, and the burden of demonstrating ongoing compliance should sit with the operator, not with exhausted residents hiring their own acousticians. Where a facility is retrofitted or expanded, as at Dowagiac, that expansion should itself trigger fresh assessment rather than sliding through on a pre-existing industrial designation. And the remedies for breach need teeth proportionate to the balance sheets involved: penalties scaled to the operator's revenue rather than to a small city's fee schedule, and structured so that a company cannot simply litigate a citation into irrelevance while the noise continues, so that compliance is cheaper than defiance. Then there is the question of who sets the floor. Zeldin's abdication leaves a genuine vacuum, and it would be inaccurate to say nothing is filling it. Something is: the policy tracker MultiState counts twenty-seven states advancing data-centre legislation covering energy costs, water use and environmental requirements, with California, Ohio and Utah having already put laws on their books. The states are moving into the space the EPA vacated. But they are moving unevenly and at different speeds, which reproduces the patchwork problem in a new costume — a facility's acoustic obligations coming to depend on which side of a state line it happens to be built, which is an open invitation to site the loudest machinery wherever the rules are thinnest. Nor is the federal posture towards even that state-level activity neutral. In remarks reported on 16 July 2026, Zeldin dismissed a statewide moratorium of the kind New York has adopted as an easy way to cop out, urging local governments instead to weigh each project individually on utility bills, grid contribution and water. There is a coherent argument buried in that, and I do not think case-by-case scrutiny is a foolish principle. But it is a striking thing to demand of a town clerk from the office that has just declined to set any national standard at all. The instruction to communities is to decide for themselves, project by project, without a moratorium, without a federal floor, and — if the minor-source proposal is adopted — in some states without even a guaranteed public comment period in which to learn what is being decided. A town of Dowagiac's size should not have to independently reinvent industrial acoustics jurisprudence in order to protect its own residents from a multinational. The knowledge exists; what is missing is a mechanism to make it a default condition of doing business rather than a concession extracted through years of federal litigation. ## The Sound of a Decision Made Somewhere Else I keep coming back to the ordinariness of the harm, because the ordinariness is the trap. If a data centre exploded, or leaked something toxic, or fell silent and took the internet with it, we would have categories ready to hand — disaster, pollution, outage — and institutions primed to respond. The permanent hum fits none of them. It is chronic rather than acute, distributed rather than concentrated, a matter of degrees rather than kind. It does not photograph. It does not trend. It simply degrades, night after night, the sleep and the peace and quite possibly the cardiovascular health of everyone within earshot, and it does so beneath the threshold at which any of our alarm systems are set to trip. That is why the Dowagiac case is worth more than the sum of its decibel readings. It is a clean instance of a much larger phenomenon that the AI era is going to keep producing: physical infrastructure arriving in inhabited places faster than any mechanism — regulatory, legal, or democratic — for governing its impact on the people already there. The gap between the pace of the build-out and the pace of accountability is not a temporary lag that will close on its own. It is a structural feature of what happens when a technology backed by trillions of dollars of capital and the rhetoric of national survival meets a system of local governance built for a slower, smaller, more answerable world. The hum is what that gap sounds like from a bedroom window. The intelligence these facilities produce is marketed to us as weightless, ethereal, a thing of clouds and prompts and disembodied minds. The reality is a shed full of fans that never stop turning, sited at the edge of a residential street, converting a town's quiet into someone else's compute. Somewhere upstream, that trade was decided. The residents of Louise Avenue were not asked, were not told, and cannot, even now, get a straight answer about what comes next. What they have been offered instead is the market value of the houses they no longer wish to live in, and the sound of the decision itself, running at fifty-something decibels, all day and all night, for as long as the machines are learning. The least we owe them is not a cheque. It is a way to make it stop. ## References ClassAction.org. (2026, May 27). *Michigan Data Center Faces Class Action Lawsuit Over Alleged Failure To Curb 'Excessive' Noise Pollution*.[https://www.classaction.org/news/michigan-data-center-faces-class-action-lawsuit-over-alleged-failure-to-curb-excessive-noise-pollution](https://www.classaction.org/news/michigan-data-center-faces-class-action-lawsuit-over-alleged-failure-to-curb-excessive-noise-pollution)WWMT Newschannel 3. 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WPR.[https://www.wpr.org/news/microsoft-sued-noise-complaints-at-new-mount-pleasant-data-center](https://www.wpr.org/news/microsoft-sued-noise-complaints-at-new-mount-pleasant-data-center)Wisconsin Examiner. (2026, July 2). *Sturtevant residents file class action suit over Microsoft data center noise*.[https://wisconsinexaminer.com/briefs/mount-pleasant-residents-file-class-action-suit-over-microsoft-data-center-noise/](https://wisconsinexaminer.com/briefs/mount-pleasant-residents-file-class-action-suit-over-microsoft-data-center-noise/)Urban Milwaukee. (2026, June 24). *Microsoft Finishes Constructing Mount Pleasant Data Center, Plans More*.[https://urbanmilwaukee.com/2026/06/24/microsoft-finishes-constructing-mount-pleasant-data-center-plans-more/](https://urbanmilwaukee.com/2026/06/24/microsoft-finishes-constructing-mount-pleasant-data-center-plans-more/)World Health Organization Regional Office for Europe. 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(2026, June). *EPA Hands Over AI Data Center Regulation To States And Communities To Develop Best Practices*.[https://www.crowell.com/en/insights/client-alerts/epa-hands-over-ai-data-center-regulation-to-states-and-communities-to-develop-best-practices](https://www.crowell.com/en/insights/client-alerts/epa-hands-over-ai-data-center-regulation-to-states-and-communities-to-develop-best-practices)NBC News. (2026). *Newly proposed EPA rule could silence data center critics, environmental activists warn*.[https://www.nbcnews.com/news/us-news/proposed-epa-rule-silence-data-center-critics-advocates-say-rcna385800](https://www.nbcnews.com/news/us-news/proposed-epa-rule-silence-data-center-critics-advocates-say-rcna385800)Sierra Club. (2026, July). *EPA Moves to Eliminate Public From Permitting Process for Data Centers, Concrete Batch Plants*.[https://www.sierraclub.org/press-releases/2026/07/epa-moves-eliminate-public-permitting-process-data-centers-concrete-batch](https://www.sierraclub.org/press-releases/2026/07/epa-moves-eliminate-public-permitting-process-data-centers-concrete-batch)Tennessee Lookout. (2026, July 16). *EPA Administrator calls statewide data center moratorium a 'cop out'*.[https://tennesseelookout.com/2026/07/16/epa-administrator-calls-statewide-data-center-moratorium-a-cop-out/](https://tennesseelookout.com/2026/07/16/epa-administrator-calls-statewide-data-center-moratorium-a-cop-out/)MultiState. (2026, April 14). *State Data Center Laws vs. Federal AI Push: 2026 Tracker*.[https://www.multistate.us/insider/2026/4/14/federal-ai-data-center-policy-meets-resistance-from-state-lawmakers](https://www.multistate.us/insider/2026/4/14/federal-ai-data-center-policy-meets-resistance-from-state-lawmakers)The Spokesman-Review. (2026, July 18). *Data center opponents stage 142 protests across 42 US states*.[https://www.spokesman.com/stories/2026/jul/18/data-center-opponents-stage-142-protests-across-42/](https://www.spokesman.com/stories/2026/jul/18/data-center-opponents-stage-142-protests-across-42/)Axios. (2026, June 18). *Exclusive: Conservatives plan nationwide protest against AI data centers*.[https://www.axios.com/2026/06/18/conservatives-protest-ai-data-centers](https://www.axios.com/2026/06/18/conservatives-protest-ai-data-centers)Gallup. (2026, May). *Americans Oppose AI Data Centers in Their Area*.[https://news.gallup.com/poll/709772/americans-oppose-data-centers-area.aspx](https://news.gallup.com/poll/709772/americans-oppose-data-centers-area.aspx)CBS News. (2026). *Mississippi homeowners blame a noisy data center plant for sleepless nights. The mayor's advice? 'Consider selling.'*.[https://www.cbsnews.com/news/mississippi-elon-musk-xai-data-center-power-plant-noise/](https://www.cbsnews.com/news/mississippi-elon-musk-xai-data-center-power-plant-noise/)WilmerHale. (2026, July 13). *Data Centers in Court: The Emerging Wave of Nuisance, Environmental, and Land-Use Litigation*.[https://www.wilmerhale.com/en/insights/client-alerts/20260713-data-centers-in-court-the-emerging-wave-of-nuisance-environmental-and-land-use-litigation](https://www.wilmerhale.com/en/insights/client-alerts/20260713-data-centers-in-court-the-emerging-wave-of-nuisance-environmental-and-land-use-litigation) **Tim Green** *UK-based Systems Theorist & Independent Technology Writer* Tim explores the intersections of artificial intelligence, decentralised cognition, and posthuman ethics. His work, published at [smarterarticles.co.uk](https://smarterarticles.co.uk), challenges dominant narratives of technological progress while proposing interdisciplinary frameworks for collective intelligence and digital stewardship. His writing has been featured on Ground News and shared by independent researchers across both academic and technological communities. **ORCID:** [0009-0002-0156-9795](https://orcid.org/0009-0002-0156-9795) **Email:** [tim@smarterarticles.co.uk](mailto:tim@smarterarticles.co.uk) Listen to the free weekly [SmarterArticles Podcast](https://www.smarterarticles.fm)