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Nick Mailloux, PhD

@nckmllx.bsky.social
208 followers 372 following 41 posts

Postdoctoral research associate at UW–Madison. Quantifying the air quality and health effects of the energy transition. Views are my own.

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Nick Mailloux, PhD @nckmllx.bsky.social · 22/07/2026
We invite submissions on the health effects of climate mitigation from local to global scales in energy, transport, buildings, industry, agriculture, and natural systems. This session aims to highlight the breadth and depth of the health effects of climate mitigation across scientific disciplines.
agu.confex.com
Assessing the Health Effects of Climate Change Mitigation: Insights for Public Health, Policy, and People
Actions to reduce greenhouse gases can advance climate mitigation and provide additional benefits for air and water quality, physical activity, nutrition, urban form, and community resilience as well ...
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Nick Mailloux, PhD @nckmllx.bsky.social · 22/07/2026
Call for Abstracts: Please consider submitting to our @agugeohealth.bsky.social session, "Assessing the Health Effects of Climate Change Mitigation: Insights for Public Health, Policy, and People," with co-conveners Jenny Bratburd, Susan Anenberg, and Jonathan Patz. Abstracts are due August 5.
agu.confex.com
Assessing the Health Effects of Climate Change Mitigation: Insights for Public Health, Policy, and People
Actions to reduce greenhouse gases can advance climate mitigation and provide additional benefits for air and water quality, physical activity, nutrition, urban form, and community resilience as well ...
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Nick Mailloux, PhD @nckmllx.bsky.social · 18/06/2026
We invite submissions on the health effects of climate mitigation from local to global scales in energy, transport, buildings, industry, agriculture, and natural systems. This session aims to highlight the breadth and depth of the health effects of climate mitigation across scientific disciplines.
agu.confex.com
Assessing the Health Effects of Climate Change Mitigation: Insights for Public Health, Policy, and People
Actions to reduce greenhouse gases can advance climate mitigation and provide additional benefits for air and water quality, physical activity, nutrition, urban form, and community resilience as well ...
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Nick Mailloux, PhD @nckmllx.bsky.social · 18/06/2026
Attending AGU in San Francisco? Consider submitting to our @agugeohealth.bsky.social session, "Assessing the Health Effects of Climate Change Mitigation: Insights for Public Health, Policy, and People," with co-conveners Jenny Bratburd, Susan Anenberg, and Jonathan Patz. Abstracts are due August 5.
agu.confex.com
Assessing the Health Effects of Climate Change Mitigation: Insights for Public Health, Policy, and People
Actions to reduce greenhouse gases can advance climate mitigation and provide additional benefits for air and water quality, physical activity, nutrition, urban form, and community resilience as well ...
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Nick Mailloux, PhD @nckmllx.bsky.social · 22/05/2026
It’s important that analyses of the economic burden of air pollution – and economic benefits of air quality improvements – use health cost data that are as refined as possible. We hope this work provides a starting point for further refinements.
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Nick Mailloux, PhD @nckmllx.bsky.social · 22/05/2026
Numerous factors are converging to impose higher air pollution–related health costs on governments, health care providers, and individuals. Rising health care premiums. An aging population. Air quality degradations from wildfire smoke.
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Nick Mailloux, PhD @nckmllx.bsky.social · 22/05/2026
Applying these new cost data to an attainment scenario of the 2024 PM NAAQS, we find an additional $14.7 million in benefit from avoided hospital admissions and ED visits that is not captured by current EPA methods.
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Nick Mailloux, PhD @nckmllx.bsky.social · 22/05/2026
We estimate hospital admission and ED visit costs by region, race/ethnicity, and payer type for health outcomes that are associated with PM₂.₅ exposure and included in BenMAP–CE. We also determine additional costs associated with outpatient surgeries, home health care, and prescribed medicines.
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Nick Mailloux, PhD @nckmllx.bsky.social · 22/05/2026
Most economic assessments of air pollution do not account for known variation in medical costs by race/ethnicity and region, nor do they include ambulatory care and other health-related costs.
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Nick Mailloux, PhD @nckmllx.bsky.social · 22/05/2026
New research from me, Vijay Limaye, and @jonathanpatz.bsky.social out in Environmental Research: Health. Using more refined health cost data, monetized benefits from avoided hospital admissions and ED visits increase by 64% under the revised PM NAAQS. iopscience.iop.org/article/10.1...
iopscience.iop.org
Improved accounting of the health costs of air pollution in the United States
Improved accounting of the health costs of air pollution in the United States, Mailloux, Nicholas A., Limaye, Vijay S, Patz, Jonathan A.
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John Bistline @bistline.bsky.social · 11/02/2026
Final EIA-860 is out, and 2025 really did it: 54 GW of new U.S. electric capacity, 96% clean. Solar again carries the offense, and we built more storage in 2025 than the cumulative total through 2023. More and more and more additions... but also record low retirements.
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The New York Times @nytimes.com · 12/02/2026
Breaking News: The Trump administration repealed the bedrock scientific finding that greenhouse gases threaten human life and well being, meaning that the EPA can no longer regulate them. nyti.ms/4rSszQu
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Steven Nelson @snelsonus.bsky.social · 09/02/2026
If Bad Bunny can cover the history of Puerto Rico, colonialism, transatlantic slavery, hemispheric consciousness, as well as contemporary life and politics in under 14 minutes, you can do your 15- or 20-minute conference presentation with time to spare.
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Nick Mailloux, PhD @nckmllx.bsky.social · 09/02/2026
My colleagues and I quantified the potential air quality and health effects of two natural gas power plants proposed for southeastern Wisconsin. Over their expected 30-year lifetimes, air quality damages could total $1.38 billion. Full analysis: www.climatesolutionsforhealth.org/air-quality
Map of the eastern United States showing cumulative county-level monetized air quality damages from 2029–2058 resulting from air pollutant emissions from two natural gas–fired power plants recently proposed for construction in southeastern Wisconsin
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Shannon Osaka @shannonosaka.bsky.social · 05/02/2026
I don't say this often but: I'm so proud to be a climate and environment reporter. We cover an issue that is vitally important to humanity and the natural world. 14 of my climate colleagues at the Post were laid off today and I'm devastated. www.climatecoloredgoggles.com/p/washington...
climatecoloredgoggles.com
Breaking: Washington Post gutting its climate team
Clean energy dies in darkness. Courtesy of Jeff Bezos.
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Canary Media Inc. @canarymedia.com · 03/02/2026
ICYMI: New York’s Sunrise Wind has won its court case and can get back to work. It was the last project held up by Trump’s offshore wind ban.
canarymedia.com
Sunrise Wind can proceed, ending Trump’s offshore wind ban — for now
A judge cleared New York’s Sunrise Wind to resume construction, completing a string of court victories for wind developers after Trump’s December…
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The Associated Press @apnews.com · 01/02/2026
BREAKING: Five-year-old Liam Conejo Ramos and his dad have returned to Minnesota after being released by ICE, Texas lawmaker says.
bit.ly
5-year-old Liam Conejo Ramos and father return to Minnesota from Texas detention facility
Five-year-old Liam Conejo Ramos and his dad have returned to Minnesota after being released by ICE, Texas lawmaker says.
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Nick Mailloux, PhD @nckmllx.bsky.social · 30/01/2026
“That report was kept secret until it was unveiled as part of Trump administration’s proposal to overturn the Endangerment Finding. The proposal relies extensively on the [Climate Working Group’s] report, citing it 22 times.”
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Justin Hendrix @justinhendrix.bsky.social · 30/01/2026
A Minnesota woman observing ICE agents in her car was cornered on one-way streets. An agent approached, called her by name—citing facial recognition. Days later, her Global Entry and TSA privileges were revoked, with no explanation.
nytimes.com
How ICE Already Knows Who Minneapolis Protesters Are
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Nick Mailloux, PhD @nckmllx.bsky.social · 29/01/2026
The crossover I didn’t know I needed!
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Nick Mailloux, PhD @nckmllx.bsky.social · 29/01/2026
“Trump officials have delayed finalizing the repeal of a landmark legal opinion key to their effort to eliminating the Environmental Protection Agency’s climate rules because of concerns the proposal is too weak to withstand a court challenge.”
washingtonpost.com
Trump’s biggest climate rollback stalls over fears it will lose in court
Trump officials have delayed finalizing the repeal of the agency’s “endangerment finding” over concerns the proposal is too weak to withstand a court challenge.
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Zeke Hausfather @zekehausfather.com · 27/01/2026
As the world quickly approaches 1.5C, researchers have a call in Nature to rethink the utility of temperature targets – and to potentially replace them with more actionable and precise targets around clean energy:
nature.com
As we breach 1.5 °C, we must replace temperature limits with clean-energy targets
Nature - Actionable goals are needed to guide the world towards what needs to happen most quickly: shifting economies to clean energy sources.
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Nick Mailloux, PhD @nckmllx.bsky.social · 29/01/2026
DeForest, WI, joins the list of towns and villages rejecting data center development. The village won't move forward with plans to annex 1,600 acres from a neighboring town to allow the construction of a data center.
wpr.org
DeForest announces it won’t move forward with controversial $12B data center
The Madison suburb of DeForest, where a $12 billion data center proposal has been in development for months, abruptly announced the data center “is not feasible.”
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Nick Mailloux, PhD @nckmllx.bsky.social · 29/01/2026
Good caveats on the scale of the build-out from @mollytaft.com. www.wired.com/story/data-c...
It's unlikely that all of the projects tracked by Global Energy Monitor will actually be built. Many data center developers shop around for power with multiple utilities, which helps to inflate overall demand; simply because a data center project has been announced does not mean that it will eventually be built. Efficiency improvements in both data center construction and in Al training will likely decrease some of the projected demand for energy over the next couple of years. A worldwide shortage of gas turbines also will play a big role in determining what actually gets built on time:
Two-thirds of the projects tracked worldwide by the Global Energy Monitor do not yet have turbine manufacturers attached to them.
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Nick Mailloux, PhD @nckmllx.bsky.social · 29/01/2026
New analysis from @globalenergymon.bsky.social finds that planned U.S. natural gas power capacity additions to meet data center demand with on-site power reached 97 GW in 2025, nearly 40% of all gas capacity in development and a huge jump from 2024. globalenergymonitor.org/report/betti...
Figure from the report:

U.S. triples gas power plants to meet data center demand
Gas-fired capacity announced, in pre-construction and construction phases, in gigawatts (GW)

Two bar graphs show gas capacity in 2024 (85 GW total; 4 GW from on-site capacity for data centers, remainder from all other development) and 2025 (252 GW total; 97 GW on-site capacity, remainder all other).
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Joshua Basseches @joshuabasseches.bsky.social · 29/01/2026
"A team of career lawyers and technical experts would usually be involved, but only a few attorneys with the Office of General Counsel are known to be working on the rulemaking, the former officials said. It’s unclear if any agency experts on climate science are involved in the process."
eenews.net
Anxious greens await death of endangerment finding
Environmental groups are planning protests to oppose EPA’s upcoming move to repeal the scientific finding.
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Bruce Springsteen @brucespringsteen.net · 28/01/2026
I wrote this song on Saturday, recorded it yesterday and released it to you today in response to the state terror being visited on the city of Minneapolis. It’s dedicated to the people of Minneapolis, our innocent immigrant neighbors and in memory of Alex Pretti and Renee Good. Stay free
youtu.be
Bruce Springsteen - Streets Of Minneapolis (Official Audio)
YouTube video by Bruce Springsteen
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Nick Mailloux, PhD @nckmllx.bsky.social · 28/01/2026
That’s now nearly 5 GW of offshore wind capacity that continue construction between Vineyard Wind, Revolution Wind, Empire Wind, and Coastal Virginia Offshore Wind.
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Adam Serwer @adamserwer.bsky.social · 27/01/2026
Last week in Minnesota, I watched ordinary people risk their lives to protect their neighbors. In the process, they not only won a significant—though not final—victory against authoritarianism, they proved virtually every MAGA social theory wrong. (gift link) www.theatlantic.com/ideas/2026/0...
Every social theory undergirding Trumpism has been broken on the steel of Minnesotan resolve. The multiracial community in Minneapolis was supposed to shatter. It did not. It held until Bovino was forced out of the Twin Cities with his long coat between his legs.

The secret fear of the morally depraved is that virtue is actually common, and that they’re the ones who are alone. In Minnesota, all of the ideological cornerstones of MAGA have been proved false at once. Minnesotans, not the armed thugs of ICE and the Border Patrol, are brave. Minnesotans have shown that their community is socially cohesive—because of its diversity and not in spite of it. Minnesotans have found and loved one another in a world atomized by social media, where empty men have tried to fill their lonely soul with lies about their own inherent superiority. Minnesotans have preserved everything worthwhile about “Western civilization,” while armed brutes try to tear it down by force.
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Timothy Snyder @timothysnyder.bsky.social · 25/01/2026
In the early 1930s the SA was roughing people up, creating chaos in neighborhoods, seeking to terrorize with the occasional killing. By the late 1930s it had been supplanted by the SS, which was much better trained.
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Minnesota Star Tribune @startribune.com · 22/01/2026
Tomorrow’s front page of the Minnesota Star Tribune: Jan. 23, 2026
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The New York Times @nytimes.com · 21/01/2026
Under President Trump, the EPA has stopped estimating the dollar value of lives saved in the cost-benefit analyses for new pollution rules.
nyti.ms
What’s a Human Life Worth? The E.P.A. Says Zero Dollars.
The Environmental Protection Agency has stopped estimating the dollar value of lives saved in the cost-benefit analyses for new pollution rules.
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Nick Mailloux, PhD @nckmllx.bsky.social · 21/01/2026
The most Wisconsin of comparisons: “Republicans’ bill has also drawn the attention of Wisconsin comedian Charlie Berens, who has been outspoken against data center developments in Wisconsin. […] Berens slammed how small the bill was, joking that there are more regulations on cheese curds.”
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Nick Mailloux, PhD @nckmllx.bsky.social · 21/01/2026
I recently sat down with Amy Barrilleaux of Clean Wisconsin to talk about EPA’s proposal to stop valuing the health harms of air pollution, what those health harms are, and the enormous success of the Clean Air Act. Listen here:
cleanwisconsin.org
What did the EPA just do?
At Clean Wisconsin, we believe everyone deserves deserves the right to clean water, breathable air, and a healthy community. Learn more about What did the EPA just do?.
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Gretchen Goldman, PhD @gretchentg.bsky.social · 20/01/2026
We're one year in. The speed, scope and severity of what's happening to American science is beyond anything we've seen before. The reliability of the Federal science and technology enterprise and the people within it, has been shattered. www.nature.com/articles/d41...
nature.com
‘Shattered’: US scientists speak out about how Trump policies disrupted their careers
Researchers lay bare the human toll of lay-offs, funding cuts and attacks on science one year after the president’s return to the White House.
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Nick Mailloux, PhD @nckmllx.bsky.social · 17/01/2026
I have an op-ed in @captimes.com on EPA’s proposal to ignore the health harms of air pollution in agency rulemaking. “By abandoning its longstanding practice of monetizing public health benefits of air pollution reductions, [EPA] is tilting its cost–benefit calculus in favor of polluting industry.”
captimes.com
Opinion | Trump EPA ignores health harms of air pollution
UW–Madison research shows that eliminating air pollution emissions in the U.S. energy system could prevent more than 50,000 premature deaths each year.
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Nick Mailloux, PhD @nckmllx.bsky.social · 12/01/2026
This move is consistent with EPA’s draft regulatory impact analyses of vehicle greenhouse gas rules, which do not value the benefits of avoided greenhouse gases or air pollution, as @jjbuonocore.bsky.social and I and others detail here:
zenodo.org
Expert Working Group on Climate Change and Health in the United States Comment on EPA's Proposed Reconsideration of 2009 Endangerment Finding
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Nick Mailloux, PhD @nckmllx.bsky.social · 12/01/2026
The Trump administration is proposing to value the cost of air pollution deaths at $0. It’s no wonder that Trump’s EPA would take this step: avoided premature mortality is regularly the largest category of monetized benefits used to justify Clean Air Act regulation.
nytimes.com
E.P.A. to Stop Considering Lives Saved When Setting Rules on Air Pollution
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Nick Mailloux, PhD @nckmllx.bsky.social · 22/12/2025
Key finding: reduced fine particulate matter exposure under the IRA could have prevented 133,000 premature deaths from 2022–2050, nearly half the benefit of a more ambitious net-zero pathway.
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Nick Mailloux, PhD @nckmllx.bsky.social · 22/12/2025
New preprint up assessing the air quality and health benefits that could have been possible under the Inflation Reduction Act. Huge effort here with Erin Mayfield, Jamil Farbes, @jessedjenkins.com, Ryan Jones, Tracey Holloway, and @jonathanpatz.bsky.social.
zenodo.org
Air quality and health effects of U.S. energy transitions
Transitioning the U.S. energy system has the potential to improve public health by reducing ambient fine particulate matter (PM2.5) exposure. We develop an integrated modeling framework, coupling ener...
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AGU Science Policy @aguscipolicy.bsky.social · 17/12/2025
NCAR is one of the most important research facilities in the US. NCAR provides key weather and climate data that help predict severe storms, allows for farmers to prepare for long-term weather patterns, and airlines to fly safely. Call congress to #SaveNCAR today. buff.ly/7ka1BQA
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Nick Mailloux, PhD @nckmllx.bsky.social · 20/12/2025
“The Trump administration wants to destroy it. Why? Because NCAR attempts to understand the inequitable impacts of human-caused climate change on the poorest and most vulnerable.”
thebulletin.org
Threatening NCAR, Trump administration seeks to extinguish a beacon of climate science
The Trump administration’s world view is that the US doesn’t need a climate science brain trust because it doesn’t like what the brains say.
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Jonathan Buonocore @jjbuonocore.bsky.social · 07/10/2025
Proud to be part of the Expert Working Group on Climate Change and Health that just put together a report summarizing the evidence of health harms of climate change to date. Report is here: zenodo.org/records/1728... 🛟 #climatesky
zenodo.org
Expert Working Group on Climate Change and Health in the United States Comment on EPA's Proposed Reconsideration of 2009 Endangerment Finding
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Dr. Elizabeth Sawin @bethsawin.bsky.social · 02/10/2025
The path between here and a just and livable future is not a smooth curve of managed transition any more (if it ever was). It's white water, surprises, confusion, advance, retreat, learning, messing up, grieving, celebrating, experimenting, truth telling, pausing in the beauty.
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Andrew Dessler @andrewdessler.com · 29/09/2025
Another expert review of the science behind the endangerment finding, this time from health professionals. they conclude that CO2 emissions "pose a clear and indisputable danger to human health and well-being." drive.google.com/fil...
This Expert Working Group on Climate Change and Health in the United States comprises 114
scientists with experience researching various dimensions of the health effects of climate
change. We are submitting this public comment in response to the proposed reconsideration of
the Endangerment Finding and Greenhouse Gas Vehicle Standards. Our overall conclusion is
that EPA is incorrect in its assessment of uncertainties in the 2009 Endangerment Finding
as a reason to reconsider the rule, given that the scientific evidence since that time
reduces the uncertainty regarding health harms from climate change stemming from
greenhouse gas emissions. Greenhouse gas emissions, by altering the climate and
disrupting earth systems, pose a clear and indisputable danger to human health and
well-being.
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Nick Mailloux, PhD @nckmllx.bsky.social · 29/09/2025
The end of soot-laden windows. The arrival of broadband internet. Cheaper and more reliable electricity. Rhode Island’s first electricity co-op. The return of birdsong. Here are the myriad benefits the first US offshore wind farm has brought to Block Island, from @catrineinhorn.bsky.social.
nytimes.com
A Rhode Island Wind Farm Changed Their View. And Their Lives, for the Better.
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Zeke Hausfather @zekehausfather.com · 14/08/2025
The recent DOE climate science report misrepresents the work of many researchers. Carbon Brief asked those cited to review the parts of the report where their work was used, and we collectively found 100+ misleading or false statements: interactive.carbonbr...
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Mehdi Hasan @mehdirhasan.bsky.social · 04/06/2025
Beyond frustrating and disappointing that CBS got a rare exclusive sitdown interview with Musk and didn’t ask him a single question about his reckless and ignorant cuts to USAID and all the lives that are being lost across the world as a result of it:
youtu.be
Elon Musk on DOGE and his work in and out of government
YouTube video by CBS Sunday Morning
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Nick Mailloux, PhD @nckmllx.bsky.social · 24/05/2025
These regulations might produce acute costs for producers from plant retrofits and retirements, but they provide diffuse benefits to all of society from improved air quality and lowered greenhouse gas emissions. It’s little surprise which group’s interests matter to EPA administrator Lee Zeldin.
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