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“I pulled the data for the past 18 years, and it’s almost off the charts.”
Air pollution in New York and across the eastern United States, driven by an outbreak of wildfires across Quebec and Nova Scotia, has reached the worst level since 2005, when modern records began, according to a Stanford economist.
“I pulled the data for the past 18 years, and it’s almost off the charts,” Marshall Burke, an economist who specializes in climate change and an associate professor at the Stanford Doerr School of Sustainability, told me.
Surveying the dangerous haze that stretched across the country on Tuesday, he said it could conceivably be one of the worst days for air pollution even before the 2000s. Rarely have so many people been exposed to so much particulate matter, or PM2.5, a toxic haze of microscopic soot and ash that is linked to early death and can penetrate the blood-brain barrier. (It’s called PM2.5 because it measures 2.5 or fewer microns across.)
New York City’s air pollution index — which spiked to more than 200 on Tuesday, a level considered “very unhealthy” for all groups — was comparable to a “pretty bad event that we’d get on the West Coast,” he said. But it is unheard of for such toxic air to afflict such a densely populated part of the country. In the late evening, New York briefly had the worst air quality of any city on Earth, beating Delhi, India, and Doha, Qatar.
Burke has published widely on climate change’s costs, studying how rising temperatures might affect crop yields, suicide, and the outbreak of wars. But on Tuesday evening, he said that the economic impacts of wildfires — and their voluminous smoke output — might be one of the biggest unknown dangers of climate. Our conversation also touched on the heinous health effects of wildfire smoke, especially for women and children. It has been edited and condensed for clarity and readability.
That’s a great question. We’ll have to see how long it lasts. A lot of the West in 2020 — really, in California — basically had what you guys are having but for a month. Sometimes it wasn’t quite as acute, but often we got days and days of stuff about as bad as what you guys are having. So I think it’s a hopefully very short-run vision of what some of the rest of the country has dealt with.
But the important part here is the number of people getting exposed. You get days in the West where, like, Missoula, Montana, is hit pretty hard. Or in the 2020 event, we had parts of California get hit pretty hard for weeks. But today we’re talking about the most populated parts of the country just getting hammered. So in that sense, it’s pretty anomalous — it’s different from the Western events where you have unpopulated areas getting dosed.
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People have been studying the health impacts of wildfire smoke for a while — and it’s interesting. You would think we would have a pretty precise answer, but we still don't have a great one.
That’s mainly because these levels of air pollution are so high they induce some weird behaviors. So people actually notice the smoke, and they respond in a way that shapes health outcomes.
So you see some things you would expect. Respiratory hospitalizations or emergency department visits go way up — that’s been shown by a lot of groups. And that’s caused by asthma, that’s COPD, that’s bad stuff.
But other stuff changes — car wrecks go down, there are fewer fractures, people don’t break their legs playing soccer. Basically, what economists would call avoidance behavior pushes back in the other direction pretty substantially. So on really bad days, it’s this funny mix of worsened respiratory outcomes and declines in other, “non-smoke-related” visits.
That said, there are demonstrable negative health impacts for vulnerable groups. And all the research suggests we should draw the circle wider and wider in terms of what we call “vulnerable groups.”
Any pregnant moms — if my wife or anyone I knew was pregnant right now — I would be texting them to stay inside and sit by an air filter. We see very large impacts on preterm birth for moms who are exposed while their kids were in utero. Like I said, my daughter has asthma, so on days like this, she gets to blow it out on the iPad sitting next to the air filter.
So part of the story is not nuanced. If you’re a vulnerable group, it’s a good time to protect yourself.
There is also an ongoing debate about whether wildfire-sourced PM2.5 is better, worse, or the same as PM2.5 from fossil fuel combustion. Some early evidence suggests it’s maybe a lot worse for respiratory function — I’m not fully convinced myself but it could be true. We see a lot of nasty stuff in wildfire smoke. We see heavy metals that get aerosolized, all this stuff that’s in your sink when houses burn, that gets aerosolized. But I think broadly, the PM2.5 literature is a good guide for what’s happening.
For me, it's so important to mention the backdrop, which is just this remarkable policy success in improving air quality. And it was driven by bipartisan public policy that was really good and really worked. You can look at papers on this: You just don’t get bad air-pollution days anymore on the East Coast. They’re gone. They just don’t exist.
Yeah, the Clean Air Act, exactly. And that is being so quickly undone in the West by wildfires. Less so in the East — we saw fingerprints of it last year — but this is going to be a big event, and it’s going to change our estimates a lot. So this really nice progress that we had made is just being rapidly eroded now, and I thought that was just a West Coast story, but maybe now it’s happening in the East too.
Now, I don’t think this is going to happen every year for you guys on the East Coast. I don’t think the data suggests that yet. But it’s not going to happen never — it’s going to be more common.
They were never going to originate in the East Coast, almost surely. Wildfire smoke might affect the East Coast, but it was going to come from somewhere else.
Exactly. And I think honestly that’s what you should still expect. Although the forecast for the next couple of days suggests there’s pretty high fire risk across a bunch of the Northeast, so it’s not out of the question. We could see some starts in the Northeast that could contribute to the smoke, but certainly that's not the case right now.
I think that the modal case is going to be one that looks a lot more like what we’re seeing today, where you get big Canadian fires blowing in. But that just makes the air-pollution problem harder, because now we have a transboundary problem.
So what do we do? Do we sue the Canadians? Do we buy them off?
The way I think about it is that the Clean Air Act was built on one main fact, which is that local pollution concentrations depend on local emissions. So if you regulate local emissions, you improve local air quality. And that worked really well for a while.
But that logic no longer holds. Look at the Canadian fires — number one, it's not a point source, and number two, it doesn't stay locally. We’re not equipped to deal with this, and we have dug ourselves a massive hole in terms of a century of putting out fires that have just made this problem a monster.
My pitch for a while on the West Coast has been that wildfire smoke is going to be one of the main — if not the main way — we encounter climate change viscerally. I'm sure it’s going to get hot, but these episodic events that sit with us and really disrupt our activity, this is going to be one of the most widespread ways we encounter it.
But I would not have told that story for you guys on the East Coast. And this is still one very historic event, so I’m not ready to tell that story, but I’m going to draw the boundary a little wider next time I give a talk on this.
That’s exactly right. None of the existing monetized economic costs of climate change — like when we come up with the social cost of carbon or any of that stuff — wildfires are not in there at all. So this is fully un-costed in all the sort of headline climate-change cost numbers that we have.
Certainly, folks are making the links, and if you read the National Climate Assessment then wildfires are in there, but in terms of monetizing the cost, you're 100% right. We have not done that. Honestly, this is a big push in my groups to try to do it back to that, try to monetize these, and I think they're going to be really big.
When we've done back of the envelope estimates, they suggest the costs are at least as large as heat, potentially. Especially if we get more events like the one today.
The effects go beyond that too. There are all these papers now that show cognitive decline when exposed to air pollution and wildfire smoke. We can look at test-score data and in smokier years, kids do worse on tests. The effects are individually small, but you add them up across schools and across counties and they get pretty big.
The question is, is there catchup, right? In terms of learning losses, we would have to follow people for longer than we’re able to right now. But they certainly last within the year. So if I’m exposed in September, and I take a test in April, I can still see the effects of the wildfire.
We see that in our data. Now, we can’t nail the cognitive channel [as being at fault here] — like, it could be because you didn't go to school. But mostly schools don't close during smoke events, and so it’s consistent with the cognitive channel. But maybe the next year you learn what you missed and, you know, we can’t rule that out.
I think the more proven long-term outcomes is the relationship between in utero exposure and later-in-life outcomes. That’s been shown for other air pollutants, and I don’t think there’s any reason to think it’s not true for wildfire as well. In-utero exposure has this lifelong, negative imprint, including on earnings and cognitive function.
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Along with Senator John Curtis of Utah, the Iowa senator is aiming to preserve the definition of “begin construction” as it applies to tax credits.
Iowa Senator Chuck Grassley wants “begin construction” to mean what it means.
To that end, Grassley has placed a “hold” on three nominees to the Treasury Department, the agency tasked with writing the rules and guidance for implementing the tax provisions of the One Big Beautiful Bill Act, many of which depend on that all-important definition.
Grassley and other Republican senators had negotiated a “glidepath for the orderly phaseout” of tax credits for renewables, the senator in a statement announcing the hold, giving developers until July 2026 to start construction on projects (or complete the projects and have them operating by the end of 2027) to qualify for tax credits.
Days after signing the law, however, President Trump signed an executive order calling for new guidance on what exactly starting construction means. The title of that order, “Ending Market Distorting Subsidies for Unreliable, Foreign Controlled Energy Sources,” has generated understandable concern within the renewables industry that, as part of a deal to get conservative House members to support the bill, the Treasury Department will write new guidance making it much more difficult for wind and solar projects to qualify for tax credits.
“What it means for a project to ‘begin construction'’ has been well established by Treasury guidance for more than a decade,” Grassley said. Under these longstanding definitions, “beginning construction” can mean undertaking “physical work of a significant nature,” which can include or buying certain long-lead equipment or components like transformers. Another way to qualify for the credits is to spend 5% of the total cost of the project.
A more restrictive interpretation of “begin construction,” however, could turn the tax credit language into a dead letter, especially when combined with the rest of the administration’s full-spectrum legal assault on renewable energy.
Grassley said that new guidance is expected within two weeks, and that “until I can be certain that such rules and regulations adhere to the law and congressional intent, I intend to continue to object to the consideration of these Treasury nominees.”Grassley has a long history with production tax credits for wind energy, playing a pivotal role in their extension in 2015. “As the father of the first wind energy tax credit in 1992, I can say that the tax credit was never meant to be permanent,” Grassley said at the time. “The five-year extension for wind energy brings about the best possible long-term outcome that provides certainty, predictability and a responsible phase-down of a tax incentive for a renewable energy source.”
Almost 60% of Iowa’s electricity is generated by wind turbines, the highest proportion of any state, according to Energy Information Administration data.
Utah Senator John Curtis has joined Grassley in placing a hold on nominees, delaying their vote before the whole Senate, according to Politico’s Joshua Siegel. Grassley and Curtis, alongside Lisa Murkowski of Alaska and Thom Tillis of North Carolina, were unable to get a meeting with the Treasury Department to discuss the guidance, Siegel reported.
On Puerto Rico’s water crisis, LNG’s tax scam, a nuclear safety scandal
Current conditions: Wildfire smoke in Alberta, Canada, is so thick that the airport had a visibility of just about 650 feet, and the air quality index hit 2241, 10 times higher than “hazardous” levels • At least 10 Chinese provinces are on alert for heavy rainfall this week, with as much as 8 inches deluging Beijing • Prolonged heatwave conditions in southeastern Europe are raising the risk of fires.
A wildfire in Arizona’s Grand Canyon National Park that has burned for nearly a month has grown into the largest blaze in the continental U.S. so far this year, scorching more than 114,000 acres as of this weekend. The Dragon Bravo fire, near the park’s North Rim, is expected to increase in size in the coming days due to the exceptionally dry, hot weather, The New York Times reported.
It’s far from the only major fire burning out West. The Gifford fire in California grew to nearly 40,000 acres on Sunday within the Los Padres National Forest in south-central California. The fire was just 3% contained as of late Sunday evening, according to the federal wildfire tracker, InciWeb. Last month, my colleague Jeva Lange wrote that the “next big wave” of wildfires out West “could happen any day.” As she reported, “the components for a bad fire season are all there — the landscape just needs a spark.” Lightning has been a particular concern in the Pacific Northwest, where thunderstorms led to 72 fires in two Oregon counties during just one night in June. A lightning strike is the likely cause of the Dragon Bravo fire.
One of many anti-corruption protests in San Juan, Puerto Rico. Jose Jimenez/Getty Images
Nearly eight years after Hurricane María decimated Puerto Rico’s power grid, the United States’ most populous territory still suffers electricity outages every week and faces rising utility bills. But the island of more than 3 million American citizens is reeling this week from yet another utility failure: Water outages. As many as 180,000 households in Puerto Rico lost access to running water last week, and thousands are still without service. The electricity and water issues are combined. Updates on the state-run water utility’s X page indicated that several water pumping stations are out of service due to a lack of electricity. Governor Jenniffer González Colón called in the National Guard to help distribute water.
It’s just the latest crisis afflicting the Caribbean territory’s basic infrastructure as the island enters the peak of hurricane season. The local government last month escalated its battle with New Fortress Energy, the financially troubled New York-based gas company that provides its fuel and operates its power plants. González Colón is considering ending the island’s contract with LUMA Energy, the private consortium that controls the power grid. Faced with ongoing blackouts, the government just scrapped Puerto Rico’s renewable energy targets and extended the life of a highly polluting coal plant, threatening devastating health consequences for the surrounding community, as I reported earlier this summer for the MIT Technology Review. And, despite González Colón’s chummy relationship with President Donald Trump, federal funding for Puerto Rico’s post-María reconstruction is still trickling out almost a decade after the storm.
The One Big Beautiful Bill Act is bringing tax credits for wind turbines, solar panels, and electric vehicles to a swift end on the grounds that the technologies are mature and therefore no longer worth subsidizing. Yet America’s largest exporter of liquified natural gas is seeking “alternative fuel” tax credits simply for running its vessels on the fuel they carry, exactly as they’re designed to do. The tax credit, originally signed into law by former President George W. Bush in 2005, was intended to incentivize the switch from gasoline and diesel to biofuels, LNG, and liquid fuels derived from coal. The tankers Cheniere Energy, the nation’s top overseas seller of American LNG, uses to ship its fuel around the world are built to boil off fuel from the tanks that hold its cargo. But the company is seeking federal rewards for using the LNG, according to an investigation by Inside Climate News. If the Internal Revenue Service approves the request, Cheniere could net more than $140 million.
The Trump administration has vowed to cut back and streamline nuclear regulations to make building new reactors easier, potentially compromising safety. The effort has stirred enough drama at the Nuclear Regulatory Commission that a Republican commissioner resigned last week. Now a scandal at the St. Lucie Nuclear Power Plant in Florida is providing a timely reminder of why strict oversight exists over atomic energy stations. An inspection report on the plant, owned by Florida Power & Light, revealed that workers feared reporting safety problems to upper management lest they face retaliation. And that comes right as a database shows safety violations soared over the past year, according to the Tampa Bay Times.
The investigation came as the Department of Energy discovered four radioactive wasp nests at the defunct Savannah River nuclear facility in South Carolina. The finding suggested that environmental contamination at the site, which previously developed weapons-grade material for the U.S. government, is more extensive than previously understood. While advocates of nuclear energy draw clear distinctions with the military-related sites, political upheaval at the federal agency that oversees radioactive materials could put the growing bipartisan consensus on building more reactors at risk.
Tesla’s board approved a $30 billion payout of shares to Elon Musk in a new compensation deal, according to a regulatory filing on Monday that followed the billionaire's threat to leave the electric automaker if he didn't receive more stock.
The move came days after a jury in Florida found flaws in Tesla’s self-driving software partly responsible for a crash that killed a 22-year-old woman in 2019 and severely injured her boyfriend, The New York Times reported. If Friday's verdict holds, Tesla will be on the hook for as much as $243 million in damages to the parents of the woman and her boyfriend. The jury decided that Tesla bore 33% of the blame for the crash. Tesla said it would appeal. It’s a setback for Musk’s driverless ambitions. As Tesla’s human-driven automotive offerings stalled out last year, Heatmap contributor Andrew Moseman wrote that, “sure, maybe it will be the one to crack full autonomous driving. But in practical terms, that tech is not close to reality, and Tesla’s version of it has encountered its fair share of bugs and been sued over crashes.”
New research from Stanford University has “upended conventional wisdom about electric vehicle battery management. Contrary to popular belief, a more dynamic driving style could significantly extend the lifespan of EV batteries,” including not charging the units to 100%.
The department creates a seemingly impossible new permitting criteria for renewable energy.
The Interior Department released a new secretarial order Friday saying it may no longer issue any permits to a solar or wind project on federal lands unless the agency believes it will generate as much energy per acre as a coal, gas, or nuclear power plant.
Hypothetically, this could kill off any solar or wind project going through permitting that is sited on federal lands, because these facilities would technically be less energy dense than coal, gas, and nuclear plants. This is irrespective of the potential benefits solar and wind may have for the environment or reducing carbon emissions – none of which are mentioned in the order.
“Gargantuan, unreliable, intermittent energy projects hold America back from achieving U.S. Energy Dominance while weighing heavily on the American taxpayer and environment,” Interior Secretary Doug Burgum said in a statement included in a press release announcing the move. “By considering energy generation optimization, the Department will be able to better manage our federal lands, minimize environmental impact, and maximize energy development to further President Donald Trump’s energy goals.”
Here’s how this new regime, which I and many in the energy sector are now suddenly trying to wrap their heads around, is apparently going to work: solar and wind facilities will now be evaluated based on their “capacity density,” which is calculated based on the ratio of acres used for a project compared to its power generation capacity. If a project has a lower “capacity density” than what the department considers to be a “reasonable alternative,” then it may no longer be able to get a permit.
“On a technology-neutral basis,” the order states, “wind and solar projects use disproportionate Federal lands relative to their energy generation when compared to other energy sources, like nuclear, gas, and coal.” The document going on to give an example, claiming that data from the U.S. Energy Information Administration shows an advanced nuclear plant uses less federal acreage than an offshore wind farm and “thus, when there are reasonable alternatives that can generate the same amount of or more energy on far less Federal land, wind and solar projects may unnecessarily and unduly degrade Federal lands.” The order also includes a chart comparing the capacity density of wind and solar facilities to conventional nuclear, gas, and coal, as well as geothermal, and claims that these sources are superior as well. The document does not reference hydropower.
There’s also a whole host of other implications in this order. Crucially, does the Interior expect that by choking off the flow of permits, cities and companies will just pony up to build what the Trump administration considers “reasonable alternatives” instead? Is the federal government going to tell communities in Nevada, for example, that they must suddenly build gas plants in the desert instead of solar farms to meet their increasing energy needs?
In any case, much more is coming, as this order simply built off of a separate secretarial order earlier this week commanding staff to prepare a litany of recommendations on ending alleged “preferential treatment” for solar and wind facilities. In other words hold my beer – and hold onto yours, too.