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The Boston Marathon is in three days. The weather forecast this year has been notably chaotic.
The second Saturday of April is the most important weather-related day on New England’s calendar, if not America’s.
The reason? It’s when Boston Marathon Monday finally appears in the 10-day forecast.
Running a marathon is one of the most difficult and grueling challenges in sports; athletes spend months logging hundreds of cumulative miles and dodging injuries in preparation for the big event. And for amateur runners who don’t have an Olympic Games in their cards, Boston is the race — with a tightly competitive field of 30,000 participants, it’s the oldest and most iconic marathon in the world.
Which is why one bad window of weather can ruin everything.
Take 2018, when torrential rain and temperatures in the 30s led more than half of the professional field to drop out. Or 2012, when 4,000 entrants opted to defer their race rather than run in the blazing 89-degree heat. Or 2007, when runners had to face 30-mile-per-hour headwinds and sleet on a course abandoned by no-show volunteers.
So what’s it going to be this year? When the forecast was first announced on Saturday, it was all of the above.
The weather reports leading up to the 2023 marathon, which takes place this coming Monday, have induced a lot of whiplash. Depending on the timing of a weekend storm, runners have been told they will either face “the challenge of rain and gusty winds” on Monday — or, “if the storm front slows down … a very warm and humid day,” Time Out writes. Those would be two very different races and in addition to complicating packing, the uncertainty added another level of anxiety for runners who have nothing better to do than refresh the forecast during tapering. (The latest forecasts have since calmed down a bit.)
Boston is already one of the most meteorologically unpredictable cities in the country and climate change is making reliable forecasts even harder. Future marathon forecasts in particular will be prone to more of the will-it-be-hot-or-cold? back and forth as the warm jet stream and cold Canadian air flip influence over New England in the spring. “Some evidence indicates that the atmosphere may become more ‘wavy’” as the climate continues to warm “and thus these sorts of temperature swings could occur more often,” Adam Schlosser, a senior research scientist at the MIT Center for Global Change Science, told The Boston Globe last year.
The ideal forecast for a marathon is overcast with a temperature of 43.2 degrees Fahrenheit (or slightly colder for elites). But Boston, which has had an average start temperature of 56 degrees over the past 22 years, is getting hotter. In a 2017 Climate.gov study of the Massachusetts Climate Division (which includes Boston), the average maximum temperature was observed to have risen at a rate of 0.3 degrees per decade since 1897, the year of the first race — “more than double the temperature rise recorded for the contiguous United States as a whole (0.12 degrees per decade).” In the last 30 years, that warming has more than tripled, “ranging from 1.0 degree to 1.3 degrees per decade in the Boston area, depending on the exact start and end year you use to calculate the trend.”
Marathon Mondays are tracking warmer in Boston.Climate.gov
Similarly, a 2012 study published in PLOS One found that Boston proper is now “about 4 degrees warmer on average in the spring than it was in the 1890s … due to a combination of global warming and the urban heat island effect associated with large cities.” With the caveat that Beantown’s spring weather can be all over the map in any given year, the researchers further found that if “Boston temperatures were to continue to warm by 4.5 degrees by the end of the century (a mid-range estimate for global warming), there will be a 64% chance that winning times will be slowed” due to the effects of heat on strenuous physical performance.
Race organizers have already taken measures to make conditions safer for athletes; in 2007, the marathon start time was bumped back from noon to 10 a.m., in part to limit exposure to the highest midday temperatures. Still, “the next few decades will tell whether morning start times and heat warnings will be enough to keep winning marathon runners from slowing in a steadily warming world,” Boston University biology professor Dr. Richard B. Primack, who led the study, wrote.
This year, at least, runners can probably relax a little: The latest forecast shows the high topping out at 60 degrees on Monday, with a start temperature of 45 degrees in Hopkinton at 9 a.m. Though there’s a chance of light showers, there is also the possibility of a “helpful” wind on runners’ backs.
You might even call it a perfect spring day. Phew.
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On budget negotiations, Climeworks, and DOE grants
Current conditions: It’s peak storm season in the U.S., with severe weather in the forecast for at least the next six days in the Midwest and East• San Antonio, Texas, is expected to hit 108 degrees Fahrenheit today• Monsoon rains have begun in Sri Lanka.
The House Budget Committee meeting to prepare the reconciliation bill for a floor vote as early as next week appears to be a go for Friday, despite calls from some Republicans to delay the session. At least three GOP House members, including two members of the Freedom Caucus, have threatened to vote no on the budget because a final score for the Energy and Commerce portion of the bill, which includes cuts to Medicaid, won’t be ready from the Congressional Budget Office until next week. That is causing a “math problem” for Republicans, Politico writes, because the Budget Committee “is split 21-16 in favor of Republicans, and Democrats are expecting full attendance,” meaning Republicans can “only lose two votes if they want to move forward with the megabill Friday.” Republican Brandon Gill of Texas is currently out on paternity leave, further reducing the margin for disagreement.
House Speaker Mike Johnson is also contending with discontent in the ranks over cuts to clean energy tax credits. “It’s not as bad as I thought it was going to be, but it’s still pretty bad,” New York Republican Andrew Garbarino, a co-chair of the House Bipartisan Climate Solutions Caucus, told Politico on Thursday. But concerns about the cuts, which would heavily impact Republican state economies and jobs, do not appear to be a “red line” for many others, including Georgia’s Buddy Carter, whose district benefits from Inflation Reduction Act credits for a Hyundai car and battery plant that is among the targets for elimination. You can learn more about the cuts Republicans are proposing to the IRA in our coverage here.
The Swiss carbon removal company Climeworks is preparing for significant cuts to its workforce, citing the larger economic landscape and the Trump administration’s lack of consistent support. The company currently has 498 employees, but is undergoing a consultation process, indicating it is looking to cut more than 10% of its workforce at once, SwissInfo.ch reports. “Our financial resources are limited,” Climeworks’ co-founder and managing director Jan Wurzbacher said in comments on Swiss TV.
Though Interior Secretary Doug Burgum is a known proponent of carbon capture, and there had been excitement in the industry that Trump’s attempts to expedite federal permitting would benefit carbon storage sites, the administration has also hollowed out the Department of Energy’s carbon removal team, my colleague Katie Brigham has reported. The ongoing funding cuts and uncertainty have made it difficult to get information from the government that could affect Climework’s Project Cypress in Louisiana, although Wurzbacher stressed that “we are not currently aware that our project would be stopped.”
Energy Secretary Chris Wright announced in a Thursday memo that the department will be reviewing at least $15 billion worth of grants awarded to “power grid and manufacturing supply chain projects” under the Biden administration, Reuters reports. “With this process, the Department will ensure we are doing our due diligence, utilizing taxpayer dollars to generate the largest possible benefit to the American people and safeguarding our national security,” Wright said in his statement.
The memo goes on to note that the DOE plans to prioritize “large-scale commercial projects that require more detailed information from the awardees for the initial phase of this review, but this process may extend to other DOE program offices as the reviews progress.” Projects that don’t meet the DOE’s standards could be denied, as could projects of grantees who fail to “respond to information requests within the provided time frame, does not respond to follow-up questions in a timely manner.” As of last week, Wright told lawmakers, “we’ve canceled zero” existing projects so far, E&E News writes; the agency will reportedly be reviewing at least 179 different awards during its audit.
The number of National Weather Service offices ending 24-hour operations and severe weather alerts is increasing. On Thursday, The San Francisco Chronicle confirmed that California’s Sacramento and Hanford offices, which provide information to more than 7 million people in the Central Valley, have been forced to reduce service due to “critically reduced staffing.”
Eliminating 24-hour service is especially concerning for the Central Valley and surrounding foothills, where around-the-clock weather updates can be critical. “These are offices that have both dealt with major wildfire episodes most of the past 10 years, and we are now entering fire season,” Daniel Swain, a climate scientist at UCLA and UC Agriculture and Natural Resources, told the Chronicle. “That’s a big, big problem.” Swain additionally shared on LinkedIn a map he’d put together of regions in the U.S. that no longer have full-service weather coverage, including “a substantial chunk of Tornado Alley during peak tornado season and the entirety of Alaska’s vast North Slope region.” The NWS is additionally seeking to fill 155 vacancies in coastal states that could face risks as the Atlantic hurricane season begins at the end of the month, The Washington Post reports. An estimated 500 of 4,200 NWS employees have been fired or taken early retirements since the start of Trump’s term.
Heatmap’s “most fascinating” EV of 2025 just got pushed back to 2026. The Ram 1500 Ramcharger — which has a 140-mile electric range as well as a V6 engine attached to a generator to power the car when the battery runs out — is now set to launch in the first quarter of next year due to “extending the quality validation period,” Crain’s Detroit Business reported this week. Parent company Stellantis also pushed back the launch of its fully electric Ram 1500 REV until summer 2027, with a planned model year of 2028. “Our plan ensures we are offering customers a range of trucks with flexible powertrain options that best meet their needs,” Stellantis spokeswoman Jodi Tinson told Crain’s in an email. Though you now have even longer to wait, you can read more about the car Jesse Jenkins calls “brilliant” here.
GMC
The 2026 GMC Hummer EV just got even more ridiculous. “Thanks to the new Carbon Fiber Edition,” the 9,000-pound car “can zoom to 60 miles per hour in 2.8 seconds,” InsideEVs reports.
A conversation with Jillian Blanchard of Lawyers for Good Government about the heightened cost of permitting delays
This week I chatted with Jillian Blanchard, vice president of climate change and environmental justice with Lawyers for Good Government, an organization that has been supporting beneficiaries of the Inflation Reduction Act navigate the uncertainties surrounding tax credits and grant programs under the Trump administration. The reason I wanted to chat with Jillian is simple: the IRA is under threat for the first time under a Republican Congress. I wanted to understand how solar and wind projects could be impacted by the House Republican reconciliation bill and putting IRA tax credits in doubt. I learned a lot.
The following conversation was lightly edited for clarity.
Okay, Jillian, what’s the topline here? How would the GOP reconciliation bill impact individual projects’ development?
There are big chunks of the reconciliation bill that will have dramatic impacts on project development, including language that would repeal or phase out bipartisan and popular tax credits in a way that would make it very, very difficult to invest in projects. I can get into the weeds next.
But it’s worth saying first – the group of programs aside from tax credits that [House Republicans] would repeal represents every single part of America. Hundreds of projects that will not go forward if these programs are not going well. And they have several legally obligated grants that EPA has already mucked up in a litany of ways. But what they’re proposing to do is to pull the rug out from under those programs. On top of that they want to pull any unobligated funding out.
I think it’s extremely misrepresentative to say these are not big cuts. They’re significant cuts to clean air and clean water across the board.
Help me get into the weeds about how phasing out the credits will make it harder to invest in a project.
Right now, a bank might want to invest a certain amount of money in a clean energy project because they know on the back end they can get 30% or 40% back on their investment. A return through tax credits. They can bank on that, because tax credits are a guarantee.
Was that an intentional pun? “Bank”?
Yeah, it is. I love a good pun. You opened the floodgates, that was a mistake.
But anyway, the program itself was supposed to be around until at least 2032 and the bank could bank on those tax credits. That’s a big runway, because projects could get delayed and you could lock in the credit as soon as you started construction.
Now they’re doing a phase-out approach where if your project is not placed into service before a certain date, you don’t avoid the phase out. You don’t get any protections if you’re starting your project now or next year. It has to be placed in service before 2028 or else your project may not be eligible. You are constructing it, you are financing it, but then through no fault of your own – a storm or whatever – then suddenly that project is no longer entitled to get 30% or 40% back.
That’s a big risk. And banks don’t like risk.
Opposition on the ground also delays projects the way a storm does. Would this empower those opponents?
Oh, totally. Totally. If anyone wants to fight a project, a bank might be even less likely to invest in it. The NIMBYs for that particular project become a risk.
What would you tell a developer at this moment who is wondering about the uncertainty around the IRA?
I would tell them that now is the time to speak up. If they want to stay in this business and make sure their energy stays as low-cost as it already is, they need to speak up right now, no matter what their political party affiliation is. Make it clear solar isn’t going away, wind isn’t going away, storage isn’t going away. These are markets America needs to be competitive with the rest of the world.
Investors are only just now starting to digest what the proposed cuts will mean, especially for energy storage.
Is Wall Street too sanguine about the House of Representatives’ proposal to gut the Inflation Reduction Act? When the House Ways and Means Committee unveiled its language on the law on Monday — phasing out tax credits, implementing strict restrictions on business relationships with Chinese companies, and altering when projects are eligible for credits — some investors responded to the cutbacks by driving up the prices of some clean energy stocks.
The residential solar company Sunrun traded up on Tuesday by 8.6%, and the American solar manufacturer First Solar was up over 22%. (Stock movements on Monday were largely in response to the pause of the U.S.-China trade war, also announced that morning.)
“The early drafts of a Republican tax and spending bill weren’t as bad for renewables as feared,” wrote Barron’s. Morgan Stanley analysts used the same language — “not as bad as feared” — in a note to clients on the text. “Industry was bracing for way worse,” Don Schneider, the deputy head of public policy for Piper Sandler and a former Republican staffer on the Ways and Means Committee, wrote on X.
While many analysts — and, to be honest, journalists at Heatmap — have issued dire warnings about how the various provisions of the Ways and Means language could together make much of the IRA essentially impossible to use, even before the tax credits phase out, investors on Wall Street and in Washington seem to have shrugged them off. Some level of cutting was all but inevitable, and “not as bad as it could have been” is reason enough to celebrate — plus there’s also “it’ll probably change, anyway.”
There’s something to this. A group ofmoderate Republicans criticized the language on Wednesday as too restrictive, specifically citing changes to three overarching features of the tax credits: when projects would be eligible for tax credits, where companies are able to source components and materials, and whether companies are allowed to freely buy and sell tax credits generated by their projects. (Wouldn’t you know it, these complaints largely echo what Heatmap has written in the past few days.)
In the Senate, meanwhile, Republican Kevin Cramer of North Dakota, said that the text as written would be too damaging to advanced nuclear and enhanced geothermal generation. The phase-out timelines in the Ways and Means language are “too short for truly new technologies,” Cramer told Politico.
Pavan Venkatakrishnan, an infrastructure fellow at the Institute for Progress, told me that he expects the bill to evolve in a way to meet the concerns of Senate Republicans like Cramer.
“Given considerations both political and procedural, like the more flexible reconciliation instructions Senate Finance is afforded relative to House Ways and Means and the disproportionate impact current text entails for technologies Republicans traditionally favor, like nuclear, geothermal, and hydropower, I think it’s fair to say that this text will change over the coming weeks,” he said.
Finally, days after the Ways and Means committee made its thinking public, Wall Street seems to be catching on to the implications. The new foreign entities of concern rules pose a particularly huge danger to the renewable energy sector, according to Jefferies analyst Julien Dumoulin-Smith, and especially to energy storage, which would be the key provider of reliability on a renewable-heavy grid. Energy storage looks to account for almost 30% of new generator additions this year, according to the Energy Information Administration.
“We think the market got it wrong for storage,” Dumoulin-Smith wrote in a note to clients. The market has yet to “digest and fully interpret the implications of proposed tariff and tax policy, which as currently written do not bode well for storage,” he said. The foreign sourcing language “is more restrictive than initially thought, with some industry stakeholders calling the proposal a near repeal on IRA.”
The storage supply chain is intensely entangled with China. Many companies, including Tesla,have been forced to disclose to investors just how reliant they are on China for their storage businesses.
China alone accounted for 70% of battery imports in 2024, according to industry analysts at BloombergNEF, over $14 billion worth. About a quarter of the metals used in battery manufacturing — especially graphite — came from China, BNEF figures show. For specific battery chemistry like lithium iron phosphate, which is popular for stationary storage products, the supply chain is essentially 100% Chinese.
Wall Street revenue and profit estimates “do not adequately capture the extent of risks” facing the U.S. storage industry, Dumoulin-Smith wrote. The storage company Fluence’s stock fell around 1.5% today, and is down over 5.5% since close of trading on Monday, as the market began to digest the House language.
It is possible that the foreign sourcing rules will be loosened and phase-outs for tax credits and transferability lengthened, Venkatakrishnan told me, but not in a way that would endanger the overall structure of the bill. Cuts to the Inflation Reduction Act are a key source of revenue for the Republican bill-writers to ensure as many of the tax cuts they want can fit within the budgetary scope they’ve given themselves.
“Any adjustments will be made with an eye toward ensuring budgetary offsets are sufficient to enable success of the broader enterprise,” Venkatakrishnan said. In other words, as much as some lawmakers may want to see these tax credits preserved, ultimately, they’ve got to pass a bill to ensure Trump’s tax cuts stick around.