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From the Inflation Reduction Act to our summer inferno to an anti-car paradise and everything in between.
I may be the new kid on the block (ICYMI I joined in November as Heatmap’s deputy editor), but if anything, I think that makes me even more qualified to talk about the most popular stories from our nine-ish months in existence — after all, for most of that time I was reading them, not working on them.
The list spans stories from the day we launched in March all the way to our coverage of COP28, which concluded just a few weeks ago. There are stories on the quest to build out renewable energy infrastructure, how to use the Inflation Reduction Act to save on your home renovation projects, and living through our summer of heat, but also stories on surfing and subways and Tokyo.
As happens with any such list, a vivid picture of you — our much-valued readers — emerges from between the lines. Climate change isn’t just the biggest story of our time, it’s also the biggest story of our lives. The curiosity you have is personal — not just about how governments are trying to solve this crisis, but also about how you can play a role; not just about electrons and molecules, but also about places and people.
If we didn’t love you already, we certainly would after seeing this list. Thanks so much for reading. We’ll see you in 2024.
The IRA consists of dozens of subsidies to help individuals, households, and businesses adopt clean energy technologies. Many of these solutions will also help people save money on their energy bills, reduce pollution, and improve their resilience to disasters.
But understanding how much funding is available for what, and how to get it, can be pretty confusing. Many Americans are not even aware that these programs exist. If you haven’t heard much about how the IRA can help you decarbonize your life, this guide is for you. If you have heard about the available subsidies, but aren’t sure how much they are worth or where to begin, Emily will walk you through it. (And if you’re looking for information about the electric vehicle tax credit, my colleague at Heatmap Robinson Meyer has you covered with this buyer’s guide.)
The ill tidings started early on a Friday morning with SolarEdge, a company that primarily sells inverters, which convert the electricity produced by a solar panel into the kind that can be used in homes.
In an unexpected announcement, SolarEdge’s chief executive Zvi Lando said that, in the third quarter, the company had “experienced substantial unexpected cancellations and pushouts of existing backlog from our European distributors.” Many of its core financial metrics, including revenue and operating income, would fall below the low end of the range it had projected earlier, SolarEdge warned. The company also said it expected “significantly lower revenues in the fourth quarter.” (SolarEdge is based in Israel but the company said that the Hamas-Israel war was not related to their financial troubles.)
Investors promptly panicked, selling off the stock and sending it down 27% in trading by the afternoon. The worry is that the problems SolarEdge identified are not unique to the company itself or even the inverter business, but to the solar industry as a whole.
What keeps emergency management officials up at night? Terrorist attacks. The Big One. A direct hit from a Category 5 hurricane.
But when it comes to climate-related disasters, one fear often rises above the rest: a blackout during a heat wave. According to new research published this spring, a two-day citywide blackout in Phoenix during a heat wave could lead to half the population — some 789,600 people — requiring emergency medical attention in a metropolitan area with just 3,000 available beds. As many as 12,800 people could die, the equivalent of more than nine Hurricane Katrinas.
So if the power goes out during a heat wave, what do you do?
The region’s major utilities — Arizona Public Service, Tucson Electric Company, and the Salt River Project — have all said they’re confident that the lights, and especially the air conditioning, will stay on, even as both temperatures and electricity usage break records. This is in stark contrast to a nearby state, Texas, where record heat has sparked anxiety about reliability and voluntary calls for conserving energy use.
Whether Arizona can transition to a less carbon-intensive grid while maintaining its famed reliability is a test not just for its residents, but also for Arizona’s stubborn rejection of energy deregulation.
In the last few years, climate change has made its impact known in violent, eye-grabbing ways. Heat waves and drought slowly roll across the planet; hurricanes and floods and wildfires bring sudden devastation to communities that were once safe. But there are also slower, more insidious impacts that we can easily forget about in the wake of those disasters, including the most classic impact of them all: sea-level rise.
The East Coast is particularly vulnerable to rising seas, and in her new book Charleston: Race, Water, and the Coming Storm (Pegasus Books, April 4, 2023), Susan Crawford, a writer and professor at Harvard Law School, explores how the historic city, the largest in South Carolina, is preparing — or failing to prepare — for what’s to come. Flooding has become increasingly commonplace in Charleston, Crawford writes, and the city’s racial history has meant that low-income communities of color are bearing the worst of the impact, with little hope for relief.
“It’s Confederate Disneyland,” Crawford told Neel in an interview about the book, “and it’s about to be SeaWorld.”
On Methane Day at COP28 in Dubai, and there was a slew of new commitments to wrangle the highly potent, short-lived greenhouse gas. This is not the first time many of these groups have pledged to address methane, which leaks into the atmosphere from oil and gas infrastructure, coal mines, landfills, and farms. But taken together, today’s actions bring more ambition, transparency, and accountability to the task.
During a press briefing on Friday morning, U.S. Climate Envoy John Kerry told reporters that reducing methane emissions is the “easiest, quickest, cheapest, simplest” way to fight climate change. But for an issue that’s so easy to address, the scourge on methane has sucked up a lot of oxygen in the climate conversation over the past five years.
Neel has spent a lot of time thinking about how to cover heat waves. Each is unique — suffering of any kind is always unique, even if the broad strokes are not — yet the things one can say about them are, for the most part, largely the same. Records will break, power grids will strain, and people will be hurt: This is the reality of climate change.
So this year, we tried an experiment: We documented particularly notable heat waves around the world as they happened, but rather than devote separate stories to them, each heat wave got a short entry within this larger page. We called out especially vivid details or statistics and include links to local outlets that can provide more information to anyone looking for it. The goal here was to create a record of the very real impact of climate change today.
For cities that want to reduce the number of cars, bike lanes are a good place to start. They are cheap, usually city-level authorities can introduce them, and they do not require you to raise taxes on people who own cars. What if you want to do something more radical though? What would a city that genuinely wanted to get the car out of its citizens’ lives in a much bigger way do? A city that wanted to make it possible for most people to live decent lives and be able to get around without needing a car, even without needing to get on a bicycle?
There is only one city on Earth Daniel has ever visited that has truly managed this. But it happens to be the biggest city on the planet: Tokyo, the capital of Japan.
Dr. Cliff Kapono sometimes still surfs the way his Indigenous Hawaiian ancestors did 1,000 years ago, on a traditional wooden board and all. But the professional surfer and molecular biologist fears his descendants might not have the same privilege. The reason is the looming scarcity of surfable waves.
While climate change could be a boon for big-wave surfers, as some have highlighted, the beloved recreational side of the sport is endangered by the shifting climate. Dramatic changes are already locked in, with rising waters swallowing surf breaks and wary communities erecting sea walls that alter the shape of the coastline. But this tension — between the masses losing access to cherished resources and the few who benefit even as they lament — is not exclusive to surfers; it’s one that bedevils almost anything related to climate adaptation.
As a metropolis that runs on the fumes of pure defiance and chaos magic even during the best of times, New York was understandably struggling to stay afloat after a month’s worth of rain fell within a few hours one Friday morning in Septemnber. Subway staircases transformed into white-water obstacles more befitting of Action Park than America’s most populous city, while trash cans embarked from their curbside moorings, destined for unknown shores. Cars — half-submerged and looking curiously hippopotamine — nosed their way through the city’s new waterways. The Central Park sea lion exhibit overflowed with, well, sea lions. A manhole outside Joe’s Pizza in the East Village caught fire, the result of short-circuiting electrical cables. In Brooklyn, inexplicably, a whirlpool appeared.
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When Congress rescinded unobligated funds from the historic climate law, it inadvertently answered a question climate advocates have been asking for months.
The Biden administration left office without ever disclosing how much of the historic climate funding from the Inflation Reduction Act it had spent.
Politico reached out to every federal agency in November in an attempt to answer that question and could only conclude that it was a “big mystery.” The administration had announced awards for about 67% of the $145.4 billion in grants created by the IRA, the outlet found, but the amount that had been obligated — meaning legally committed and therefore, at least in theory, protected — remained largely unknown.
That continued to be true right up until the legislative process for Trump’s One Big Beautiful Bill. In addition to overhauling the IRA’s clean energy tax credits, Republicans in Congress rescinded the unobligated funds from 47 of the law’s more than 80 climate and environmental programs. According to scores from the Congressional Budget Office, $31.7 billion of the $93.4 billion for those programs, or about 34%, was left.
That means the Biden administration spent or contracted out about two-thirds of the funding from these programs. The data puts into focus what the ultimate effects and outcomes of the Inflation Reduction Act will be over the coming decades — or rather, what they could be, if the Trump administration upholds existing contracts. Whether the administration must honor these agreements is the subject of several ongoing lawsuits.
But we can see, for example, that the Environmental Protection Agency, which had the largest appropriation from the IRA of any agency, obligated the vast majority of that money to states, tribes, nonprofits, and other beneficiaries. Billions of dollars to monitor and address air pollution in low-income communities and at schools, to phase down planet-warming refrigerants and transition to next-generation technologies, and to help states build out and implement their climate action plans should theoretically be flowing into the economy, so long as the contracts are ultimately honored. The entirety of the $27 billion Greenhouse Gas Reduction Fund was obligated, and while the EPA has attempted to claw back roughly $20 billion of that — a process that has been held up in the courts — the $7 billion set aside for a low-income solar program called Solar For All is actively funding new projects around the country.
The agency under Biden was less successful in standing up a series of programs designed to advance greenhouse gas emissions reporting. Initiatives to improve the labeling systems for low-carbon construction materials and to standardize corporate emissions reporting never really got off the ground.
The Department of Agriculture was also an efficient spender. While the data shows it had obligated only about $7 billion of the more than $18 billion allocated for climate-focused conservation programs, only $10 billion of the funding was actually available for the department to use by the time Biden left office. On the one hand, that means it awarded 70% of the available funds. On the other, that means Congress has now evaporated a whopping $11 billion that could have been disbursed.
The Forest Service, which is under the USDA, also deployed more than $2 billion, or about 93% of its funding for National Forest restoration, urban forestry, and climate mitigation grants for private forest owners.
There are limitations to the data. It shows that the Department of Energy only spent about 39% of its funding, but because the Budget Office did not break out the rescissions by program, we can’t see how far along the agency got with each one, or how much of each was clawed back. The data can also be somewhat misleading, as several of the programs provide loans and loan guarantees, while the OBBB only rescinded “credit subsidies,” i.e. money to cover the costs of this lending service. In other words, this doesn’t tell us much about how much Biden’s Loan Programs Office accomplished. But in this case the office’s website helps fill out the picture: It lists 23 active loans that were made after the IRA passed, worth nearly $58 billion. (The IRA appropriated about $11.7 billion in credit subsidies to the Loan Programs Office.)
I also put together a list of programs that Congress did not rescind, as they show which IRA creations the GOP either deemed worthwhile or too depleted, a.k.a. obligated, to be worth the effort. Several big-ticket items jump out. As I’ve previously written, two rebate programs for home efficiency improvements remain intact, although most of the $8.8 billion in funding is currently paused. Drought mitigation, water access, and tribal electrification and climate resilience grants were also untouched. A $3 billion EPA program to reduce air pollution at ports made it through the gambit after an initial House draft of the OBBB had proposed killing it.
Republicans in Congress also preserved a nearly $10 billion program to help rural electric cooperatives invest in clean energy and energy efficiency. Rural coops disproportionately rely on coal-fired power plants, burdening their members with higher energy prices and dirtier air. While the National Rural Electric Cooperative Association is a major advocate for coal power and has applauded Trump’s moves to boost it, the group also championed the rural clean energy program, with its CEO telling E&E News last fall that the program was oversubscribed and that “there is an appetite for investing in clean energy.”
To be sure, the question of whether and to what extent the Trump administration will disburse previously obligated funds or continue to spend down the remaining programs is a big one. But the supposition that the OBBB “killed” the IRA is also not really accurate. Between obligated funds and the programs that weren’t rescinded, more than $105 billion could still flow into the economy to fight climate change.
Unlike just about every other car sales event, this one has a real — congressionally mandated — end date.
Car salespeople, like all salespeople, love to project a sense of urgency. You know the familiar seasonal rhythm of the TV commercial: Toyotathon is on now — but hurry in, because these deals won’t last. The end of the discount is, of course, an arbitrary deadline invented to juice that month’s sales figures; there’ll be another sale soon.
But in the electric vehicle market there’s about to be a fire sale, and this time it really is a race against the clock.
Federal incentives for EVs and EV equipment were critically endangered the moment Donald Trump won the 2024 presidential election. Now, with the passage of the omnibus budget reconciliation bill on the Fourth of July, they have a hard expiration date. Most importantly, the $7,500 federal tax credit for an EV purchase is dead after September 30. Drivers who might want to go electric and dealerships and car companies eager to unload EVs are suddenly in a furor to get deals done before the calendar turns to October.
The impending end of the tax credit has already become a sales pitch. Tesla, faced with sagging sales numbers thanks in part to Elon Musk’s misadventures in the Trump administration, has been sending a steady slog of emails trying to convince me to replace my just-paid-off Model 3 with another one. The brand didn’t take long to turn the impending EV gloom into a short-term sales opportunity. “Order soon to get your $7,500,” declared an email blast sent just days after Trump signed the bill.
On Reddit, the general manager of a Mississippi dealership posted to the community devoted to the Ioniq 9, Hyundai’s new three-row all-electric SUV, to appeal to anyone who might be interested in one of the three models that just appeared on their lot. It’s an unusual strategy, a local dealer seeking out a nationwide group of enthusiasts just to move a trio of vehicles. But it’s not hard to see the economic writing on the wall.
The Ioniq 9 is a cool and capable vehicle, but one that starts at $59,000 in its most basic form and quickly rises into the $60,000s and $70,000s with fancier versions. Even with the discount, the Ioniq 9 costs far more than many of the more affordable gas-powered three-row crossovers. And now the vehicle has come down with a serious case of unlucky timing, with deliveries beginning this summer just ahead of the incentive’s disappearance. As of October 1, the EV could become an albatross that nobody in suburban Memphis wants to drive off the lot.
Over the past year, Ford has offered the Ford Power Promise, an excellent deal that throws in a free home charger plus the cost of installation to anyone who buys a new EV. That deal was supposed to expire this summer. But the Detroit giant has extended its offer until — surprise — Sept. 30, in the hopes of enticing a wave of buyers while the getting is good.
This isn’t the first time EV-makers have been through such a deadline crunch. When the $7,500 federal tax credit for EV purchases first started in 2010, the law was written so that the benefit phased out over time once a car company passed a particular sales threshold. By the time I bought my EV in the spring of 2019, for example, Tesla had already sold so many vehicles that its tax credit was halved from $7,500 to $3,750. We had to rush to take delivery in the last few days of June as the benefit was slated to fall again, to $1,875, on July 1, before it disappeared completely in 2020.
The Inflation Reduction Act passed under President Biden not only reinstated the $7,500 credit but also took away the gradual decline of the benefit; it was supposed to stick around, in full, until 2032. But despite Trump’s on-again, off-again bromance with Elon Musk, the president followed through on his long-term antagonistic rhetoric against EVs by repealing the benefit as part of this month’s disastrous big bill.
Trump, despite his best efforts, won’t kill the EV. The electric horse has simply left the barn — the world has come too far and seen too much of what electrification has to offer to turn back just because the current U.S. president wants it to. But the end of the EV tax credit (until a different regime comes into power, at least) seriously imperils the economic math that allowed EV sales to rise steadily over the past few years.
As a result, now might be the best time for a long time to buy or lease an electric vehicle, with remarkably low lease payments to be found on great EVs like the Hyundai Ioniq 5 and Chevy Equinox. Once the tax breaks are gone, lease deals (which got lots of drivers into EVs without them having to worry about long-term ownership questions) are likely to grow less enticing. EVs that would have been cost-competitive with gasoline counterparts when the tax credits taken into account suddenly aren’t.
Plenty of drivers will continue to choose electric even at a premium price because it’s a better product, sure. But hopes of reaching many more budget-first buyers have taken a serious hit. It could be a dream summer to buy an EV, but we’re all going to wake up when September ends.
On the NRC, energy in Pennsylvania, and Meta AI
Current conditions: Air quality alerts will remain in place in Chicago through Tuesday evening due to smoke from Canadian wildfires • There is a high risk of a tropical depression forming in the Gulf this week • The rain is clearing on the eastern seaboard after 2.64 inches fell in New York’s Central Park on Monday, breaking the record for July 14 set in 1908.
The Trump administration is putting pressure on the Nuclear Regulatory Commission to “rubber stamp” all new reactors, Politico reports based on conversations with three people at the May meeting where the expectation was relayed. The directive to the NRC’s top staff came from Adam Blake, a representative of the Department of Government Efficiency, who apparently used the term “rubber stamp” specifically to describe the function of the independent agency. NRC’s “secondary assessment” of the safety of new nuclear projects would be a “foregone conclusion” following approval by the Department of Energy or the Pentagon, NRC officials were made to believe, per Politico.
A spokesperson for the NRC pointed to President Trump’s recent executive order aiming to quadruple U.S. nuclear power by 2050 in response to Politico’s reporting. Skeptics, however, have expressed concern over the White House’s influence on the NRC, which is meant to operate independently, as well as potential safety lapses that might result from the 18-month deadline for reviewing new reactors established in the order.
President Trump and Republican Senator Dave McCormick of Pennsylvania will announce a $70 million “AI and energy investment” in the Keystone State at the inaugural Pennsylvania Energy and Innovation Summit today in Pittsburgh. The event is meant to focus on the development of emerging energy technologies. Organizers said that more than 60 CEOs, including executives from ExxonMobil, Chevron, BlackRock, and Palantir, will be in attendance at the event hosted by Carnegie Mellon University. BlackRock is expected to announce a $25 billion investment in a “data-center and energy infrastructure development in Northeast Pennsylvania, along with a joint venture for increased power generation” at the event, Axios reports.
Ahead of the summit, critics slammed the event as a “moral failure,” with student protests expected throughout the day. Paulina Jaramillo, a professor of engineering and public policy at Carnegie Mellon, wrote on Bluesky that the summit was a “slap in the face to real clean energy researchers,” and that there is “nothing innovative about propping up the fossil fuel industry.” “History will judge institutions that chose short-term gain over moral clarity during this critical moment for climate action and scientific integrity,” she went on.
On Monday, Meta founder and CEO Mark Zuckerberg confirmed on Threads that the company aims to become “the first lab to bring a 1GW+ supercluster online” — an ambitious goal that will require the extensive development of new gas infrastructure, my colleague Matthew Zeitlin reports. The first gigawatt-level project, an Ohio data center called Prometheus, will be powered by Meta’s own natural gas infrastructure, with the natural gas company Williams reportedly building two 200-megawatt facilities for the project in Ohio. The buildout for Prometheus is in addition to another Meta project in Northeast Louisiana, Hyperion, that Zuckerberg said Monday could eventually be as large as 5 gigawatts. “To get a sense of the scale we’re talking about, a new, large nuclear reactor has about a gigawatt of capacity, while a newly built natural gas plant could supply only around 500 megawatts,” Matthew writes. Read his full report here.
BYD
Electric vehicle sales are currently on track to outpace gasoline car sales in China this year, Bloomberg reports. In the first six months of 2025, new battery-electric, plug-in hybrid, and extended-range electric cars accounted for 5.5 million vehicles sold in the country (compared to 5.4 million sales of new gasoline cars), and are projected to top 16 million before the end of December — both of which put EVs a hair over their combustion-powered competitors.
By contrast, battery-electric cars only accounted for 28% of new-car sales in China last year, per the nation’s Passenger Car Association. But “sales this year have been spurred by the extension of a trade-in subsidy” as well as the nation’s expansive electrified lineup, including “several budget options” like BYD’s Seagull, Bloomberg writes. “China is the only large market where EVs are on average cheaper to buy than comparable combustion cars,” BloombergNEF reported last month.
Window heat pumps are an extremely promising answer to the conundrum of decarbonizing large apartment buildings, a new report by the nonprofit American Council for an Energy-Efficient Economy has found. Previously, research on heat pumps had primarily focused on their advantages for single-family homes, while the process of retrofitting larger steam- and hot-water-heated apartment buildings remained difficult and expensive, my colleague Emily Pontecorvo explains. But while apartment residents used to have to wait for their building to either install a large central heat pump system for the whole structure, or else rely on a more involved “mini-split” system, newer technologies like window heat pumps proved to be one of the most cost-effective solutions in ACEEE’s report with an average installation cost of $9,300 per apartment. “That’s significantly higher than the estimated $1,200 per apartment cost of a new boiler, but much lower than the $14,000 to $20,000 per apartment price tag of the other heat pump variations,” Emily writes, adding that the report also found window heat pumps may be “the cheapest to operate, with a life cycle cost of about $14,500, compared to $22,000 to $30,000 for boilers using biodiesel or biogas or other heat pump options.” Read Emily’s full report here.
California was powered by two-thirds clean energy in 2023 — the latest year data is available — making it the “largest economy in the world to achieve this milestone,” Governor Gavin Newsom’s office announced this week.