Someone dies indoors in Maricopa County, Arizona, during a heat event. An investigator from the Office of the Medical Examiner goes to the scene. Among the data points recorded is whether an air conditioning unit is present in the residence.
For years, the field on the form was binary. Present: yes or no. The data that flowed from that field supported a clean intervention logic. People without AC die of heat indoors. Get AC units to people who don't have them.
The investigator standing in the room knew more than the field could hold. The unit bolted to the window frame was present. It was also broken, or functional but turned off because the electric bill was $400 and the resident was on a fixed income, or connected to a grid segment that lost power at 3 p.m. on the hottest day of the year. "Present" covered all of these conditions. It distinguished none of them. The investigator compressed what they saw into the word the form provided, and the word traveled upward into surveillance data that looked like an answer.
The Field and What It Carries
By 2012, Maricopa County's Department of Public Health had begun receiving expanded preliminary death reports incorporating data on air conditioning status and energy use. Both the county's 2024 and 2025 heat-death reports trace this to February 2012, when the Office of the Medical Examiner started providing expanded preliminary data. Someone inside the institution had looked at the binary field and understood it was failing. The refinement that followed split "present" into subcategories: functioning, nonfunctioning, turned off, no electricity.
The 2024 heat-death report showed what the refined categories revealed. The report recorded 138 indoor heat deaths. AC was present in 88% of those cases. Among the indoor deaths where AC was present, 70% involved units that were not functioning. Another 18% had functioning units that were turned off. Nine percent had no electricity. The 2025 report continued the pattern: 94% of indoor heat deaths occurred in residences where AC was present. Among those, 72% involved nonfunctioning units.
Most people who die of heat indoors are dying in rooms with air conditioners.
The old field had been hiding this. The mechanics are ordinary: a form has a finite number of fields. Each field reduces a complex situation to a value the system can aggregate. The aggregation produces data. The data supports policy. If the field is too coarse, the data tells a story that is technically true and practically useless. "Present" was technically true. It was also obscuring the fact that the intervention it implied would not have saved most of the people who died.
The refinement was an act of institutional self-correction. Maricopa County's public health medical director, Rebecca Sunenshine, told the AP in October 2023 that investigators had begun noting whether indoor heat-death victims had a working air conditioner and whether electricity was available, and that collecting "circumstances around these deaths" could lead to policy changes. That phrase carries weight. "Circumstances around these deaths" is a medical director choosing language that acknowledges the investigator's scene knowledge as policy-relevant, as something the forensic detail alone could never capture. AP connected the data collection to rules requiring regulated power companies to maintain service during extreme heat even when bills were unpaid. The refined category had made visible the evidentiary basis for a policy argument that "present" had been quietly burying.
Precision Travels as Far as the County Line
The Guardian reported in October 2025 that Maricopa County is considered a "gold standard" jurisdiction for heat-death investigation, noting that autopsy and investigative reports record location, activity, medical conditions, housing status, and whether indoor decedents had air conditioning or electricity. The phrase "gold standard" carries its own compression. It means most jurisdictions are doing less. AP reported in August 2023 that U.S. heat-death counting lacks uniformity, that CDC data depend on death certificates, and that certifiers may not always connect contributing causes to heat exposure.
In the reviewed public health literature from 2024 through mid-2026, I found no peer-reviewed article or CDC analysis that specifically names Maricopa's AC-functioning distinction as a methodological advance worth replicating nationally. This reflects the scope of my review rather than a definitive absence, but the pattern matters: a county refined its own categories, the refinement changed what the data could show, the data supported policy, and the field that studies heat surveillance has not formally discussed whether other jurisdictions should adopt it. The category improvement happened inside one county's system and stayed there, visible in annual reports, invisible as a transferable method.
The investigator in the room made the word more precise. The precision traveled as far as the county line and stopped.
What "Nonfunctioning" Still Compresses
Even the refined category compresses. The 2025 report defines "non-functioning" as an AC unit that "was not operating properly, was broken, or could not be turned on despite the presence of electricity." That definition holds together a compressor that burned out in June because the unit was twenty years old, a unit that works intermittently and was off-cycle when the resident's core temperature crossed the threshold, and a unit that requires a 220-volt outlet in a house where the wiring can't support it. Each implies a different intervention, a different responsible party, a different policy lever. The field compresses them into one word because the form has one field.
Refinement moves the gap between the room and the record. The gap is smaller now, and it remains. The investigator standing over the body still knows more than the form can carry. The form is better. The remainder persists.
Milestone Words
Twelve hundred miles east, in Buncombe County, North Carolina, a different set of institutional actors manages a different compression problem. In late January 2026, FEMA issued award letters for Hazard Mitigation Grant Program acquisition groups 1 and 2, following Hurricane Helene. The county's update called the letters "a key step forward." The same update said the county did not yet have a timeline for movement through the state process. It could take "several days — maybe weeks" before awards reached Buncombe. Between "awarded" and a family being able to act on the award, the county's own documents list: verifying approved addresses, confirming owner interest, coordinating homeowner meetings, waiting for state contractor selection, appraisals, purchase offers, closing, demolition, debris removal. The acquired property must remain public open green space.
"Awarded" is a milestone word. It marks an institutional event, FEMA approving funding, and says nothing about whether a family can act on it. The person who writes "a key step forward" in the same paragraph as "no timeline" is holding both truths because both are true, and the update has to carry both.
By March 2026, Helene Recovery Officer Kevin Madsen described a kick-off meeting as "progress" for property owners who had lost so much, while noting there were "still a number of steps to go before closure." Look at what that sentence is doing:
"Progress" and "still a number of steps" and "closure" and "lost so much."
Madsen is doing four things at once: acknowledging suffering, naming forward motion, signaling distance remaining, and using the institutional vocabulary of completion. He is writing for property owners who will read the update and for a federal process that requires specific language. The sentence is shaped by both audiences simultaneously, and the tension between them is audible if you know what to listen for.
By December 2025, County Manager Avril Pinder had told the Washington Post that Buncombe had hoped earlier applications would mean buyouts or reconstruction had already started, but "we haven't seen that." She described households asking how to pay for a damaged home and another place to live while hope was dwindling. Pinder is naming the gap between what her institution promised by applying early and what the federal timeline delivered. The administrator's frustration and the household's frustration share a source: the distance between the milestone word and the condition it implies.
Three Programs, Three Definitions of You
The deeper compression problem in Buncombe is the simultaneous operation of programs whose eligibility logics do not align.
| HMGP Buyouts | Renew NC | Reduce to Rebuild | |
|---|---|---|---|
| Funding | Federal (FEMA), state-managed | State (CDBG-DR) | Local (Buncombe County) |
| Eligible applicant | Local government, not homeowner | Owner-occupant | Owner of primary residence |
| Key requirements | Property qualifies based on hazard risk; no income requirement | Owner-occupancy at time of Helene; prioritizes low-to-moderate income, households with seniors, children, or disabled members | Documented damage assessment; qualifying county permits |
| Launched | Post-Helene FEMA awards | State program | June 1, 2026 |
Buncombe's housing recovery page places all three on the same screen. The Housing Recovery Support Function is described as a structure that brings partners together to understand impacts, monitor needs, and identify solutions across short, long, and permanent timelines. The language is integrative. The underlying program architectures are not. Someone wrote that page knowing the systems behind it define "eligible," "property," and "homeowner" three different ways, and chose to present them as a coherent recovery because that is what the household needs to see. The page is doing work the programs cannot do. The person who built it knows this.
The county staff member who sits across from a family and explains all three programs holds three incompatible definitions of that family in their head. They know the household is one family and the systems see three different applicants. They know which program the family probably qualifies for and which one would actually help most, and those are frequently different programs. They translate between these realities every day, and the translation is always lossy.
The Remainder
Heat surveillance and disaster recovery operate under different agencies, different funding streams, different federal authorities. The structural condition Maricopa and Buncombe share cuts across all of that: people whose jobs require them to carry dual knowledge. They know what the word means inside the system. They know what it compresses.
They can refine it. They can split "present" into "nonfunctioning" and "turned off" and "no electricity," and the data gets closer to the room. They can put three programs on one webpage and write integrative language around them, and the presentation gets closer to the household's experience. Maricopa's refinement was real. It changed what the data could show. It supported policy. And the investigator still knows more than the form can hold.
Buncombe's five-year recovery plan covers 114 projects. The hazard mitigation plan adopted in June 2026 is described as a living document that may need additions or edits during its five-year lifespan. "Living document" is institutional language for: we know this will be wrong. We are building the mechanism to correct it. The person who wrote it is being honest within the constraints of a form that was never designed to hold what they know.
The careful qualifications in these updates, the forward-motion words followed immediately by timeline caveats, the status updates that say "progress" and "still a number of steps" in the same sentence. All of it bears the mark of someone who knows exactly what the word means and what it doesn't, producing language shaped by that knowledge for anyone who knows how to read it. The refinement is real. The gap persists. The institutional actor lives in both, comes back the next morning, and fills in the next field.
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Cooling center reachability gap: A 2023 Maricopa cooling-center visitor survey found 68% of surveyed visitors had unstable residence and nearly half learned about the site by word of mouth, raising the question of what "open" means when awareness depends on informal networks.
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Helene buyout status table: North Carolina DPS maintains a public Helene hazard mitigation application table listing awarded and submitted acquisition groups by county, but the table tracks FEMA award status without recording closing, payment, demolition, or household resettlement.
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Federal heat rule timeline: OSHA's proposed federal heat standard completed its public hearing in July 2025, and the agency issued a new National Emphasis Program for heat-related hazards in April 2026, but the rule itself remains unfinalized more than a year after the comment period closed.
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Garren Creek landslide engineering: Buncombe County approved a $1.8 million design and engineering contract in June 2026 for landslide mitigation at nine Helene-caused sites in Garren Creek and Craigtown where 13 lives were lost, adding yet another recovery track operating alongside buyouts and housing repair.