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The whales will be fine.

Donald Trump loves eagles and whales and therefore he wants to protect them — from clean energy development.
Trump may, however, be relieved to hear that many of his concerns about wind and solar energy are unfounded. Here’s what he gets right and wrong.
Pointing out the window to the Atlantic Ocean at one point, one attendee said, the former president claimed that offshore wind turbines break down when they are exposed to saltwater … [April 17, 2024]
Fact check: Let’s just get this out of the way: offshore wind turbines are designed to withstand saltwater exposure. People have been building things in saltwater for a long, long time. From the oldest known ships constructed 6,000 years ago out of papyrus reeds to Norway’s Troll A platform — a reinforced concrete offshore natural gas platform and the tallest structure ever moved by humankind — we’ve learned a few things about resisting salt corrosion.
This scene occurred during a fundraising dinner with oil and gas executives at Trump’s Mar-a-Lago resort reported on by The Washington Post, which also pointed out this obvious fact. That said, to the former president’s credit, “the ocean is indeed a difficult environment” for construction and engineering, Eric Hines, a civil and environmental engineering professor and the director of the offshore wind energy graduate program at Tufts University, told me. But the lifespan of offshore structures can range from a few years to more than a century.
According to Hines, most offshore wind farms today are built to have “approximately 25-year service lives,” but the design is always evolving. His department, for example, is working on developing advanced underwater foundations that are built to last more than a century and double as artificial reefs.
“I like the concept of solar, but it’s not powerful like what we need to fire up our factories.” [Dec. 16, 2023]
Fact check: “That question is actually a little bit tricky,” Baker, the assistant professor of engineering at the University of Colorado, told me, when I asked him whether solar alone could power a factory — but it’s also not really what we should be asking. “One thing I’ve noticed people do a lot is they’ll just compare efficiency of power generation,” Baker explained. But “it’s not just about the efficiency — it’s about other things, too, like solar’s ability to be distributed. You can’t put a nuclear fission power plant in your house — you know, not yet — but you can put solar panels, so that’s a huge benefit. It offers some resiliency that other sources just can’t offer.”
It’s true that solar power is less efficient than other sources of energy, including wind, and that it requires a lot of surface area, which could be an undue burden for a manufacturer. But at the same time, “I don’t know if anybody is proposing to power an entire factory based off of solar,” Baker said.“Their windmills are causing whales to die in numbers never seen before. Nobody does anything about that. They’re washing up on shore. I saw it this weekend: Three of them came up! You wouldn’t see it once a year; now they’re coming up on a weekly basis. The windmills are driving them crazy. They’re driving the whales, I think, a little batty.” [Sept. 25, 2023]
Fact check: If you ever want to feel ridiculous, try asking a scientist at the National Oceanic and Atmospheric Administration if windmills are making whales “a little batty.”
NOAA actively studies how “sound, vessel, and other human activities” impact marine life, Lauren Gaches, the director of NOAA Fisheries Public Affairs, told me over email. “At this point, there is no scientific evidence that noise resulting from offshore wind site characterization surveys could potentially cause mortality of whales,” she said.
An ongoing “unusual mortality event” for humpback whales has resulted in 200 whale deaths between 2016 and June 2023 along the Atlantic coast from Maine to Florida — that much is true. But “there are no known links between recent large whale mortalities and ongoing offshore wind surveys,” Gaches told me. NOAA’s fact page on whales and offshore wind explains that of “roughly 90 whales examined, about 40% had evidence of human interaction, either ship strike or entanglement.”
There has been some chatter about underwater surveying work disrupting whales, which may be true in the case of oil and gas surveys, which use seismic air guns to penetrate deep into the ocean floor. The surveying equipment used for offshore wind is, by contrast, used in 15-second bursts and limited to a specific area, “so the likelihood of an animal encountering and coming right into that sound beam is quite low,” Erica Staaterman, the deputy director for the Bureau of Ocean Energy Management’s Center for Marine Acoustics, said on a NOAA-hosted call with the press early last year.
As Ben Laws, the deputy chief of NOAA’s Permits and Conservation Division in the Office of Protected Resources, said on the same call, “There is no information that would support any suggestion that any of the equipment that’s being used in support of wind development for these site characterization surveys could directly lead to the death of a whale.”
“If you go out hunting and you happen to shoot a bald eagle, they put you in jail, like, for five years, right? They kill thousands of them with these windmills; nothing happens.” [Jan. 28, 2023]
“If you want to see a bird cemetery, go under a windmill sometime. You’ll see birds like you never saw. If you love birds, you’ll start to weep.” [Dec. 16, 2023]
Fact check: Trump has had a vendetta against wind turbines since long before he ever ran for president. “Wind farms are killing many thousands of birds,” reads one illustrative tweet from 2012. “They make hunters look like nice people!”
Lewis Grove is the director of wind and energy policy at the American Bird Conservancy, and he told me that while it’s “not necessarily as simple as Mr. Trump painted it out to be, wind turbines absolutely kill birds.”
But the context here is extremely important. Jason Ryan, a spokesperson for the American Clean Power Association, a leading renewable energy trade group, pointed me to research from the U.S. Fish & Wildlife Service that shows wind farms “represent just 0.03% of all human-related bird deaths in the U.S.” Grove likewise told me that, for the most part, bird deaths due to wind turbines do “not have population-level impacts.”
There are exceptions, such as an infamous wind farm in California’s Altamont Pass built in 1981 that “just happened to be in a place that was really heavily used by golden eagles,” Grove told me. Because golden eagle populations were already very low, having 100 or so killed a year by turbines was “unsustainable.” Even in a case like this, though, it behooves one to look at the whole picture: “They found it was a few individual turbines that were causing the damage,” Grove said. These days, around 60 golden eagles a year are killed in Alameda County, the Alameda Post reports, and the operating company must pay steep penalties for eagle deaths.
What’s more, “climate change is one of the greatest threats birds face, with two-thirds of North American species at risk of extinction due to our warming planet,” Jon Belak, senior manager of science and data analysis at The National Audubon Society, told me in a statement. “We need to build more wind and solar facilities to help slow the rise in global temperatures and protect birds and their habitats from a changing climate.”
Wind farms may not have population-level impacts on birds, but fracking does — “the onset of shale oil and gas production reduces subsequent bird population counts by 15%,” even after accounting for factors like weather and other land-use changes, according to one just-published, peer-reviewed study.
“Remember the windmills? ‘Darling, darling, I want to watch the president, I love him so much. I want to watch him on television tonight.’ ‘I’m sorry, but the wind isn’t blowing, you’ll have to wait ‘til another time.’ Windmills.” [March 26, 2022]
Fact check: “I mean, it’s possible with any mix of generation that if supply and demand aren’t equal, your TV will go out. That’s just physics,” Kyri Baker, an assistant professor of engineering at the University of Colorado, told me when I asked her if Trump’s scenario had any merit. In other words, a power outage could happen whether your electricity is coming from coal or natural gas or anything else. The difference, she said, is that “wind is by nature variable, intermittent. But it’s also not reliant on fuel like natural gas or coal plants or even nuclear plants are.”
What happens on days when there is no wind? “Grids are extremely regulated,” Baker explained to me. “There’s so many layers of redundancy that aim specifically to not have [an outage] happen.” A grid is made up of diverse electricity sources (for my visual learners, Canary imagines what a net-zero grid could look like here), as well as measures like offline backup generators, which can kick in if need be, so service isn’t disrupted.
Battery storage is another huge part of this equation. While they’re still fairly cutting-edge as climate technology goes, high-capacity batteries that can manage grid-scale energy needs are getting better and more plentiful.
“Stop with all of the windmills all over the place that are ruining the atmosphere.” [Jan. 20, 2022]
Fact check: Wind turbines do not damage the literal atmosphere.
But maybe Trump meant atmosphere as in “sense of place”? Most Americans don’t seem to think windmills are “ruining” anything. In a recent Heatmap poll, nearly eight in 10 Americans said they want the government to make it easier to build new wind farms. The Washington Post similarly found last year that about 70% of Americans said they wouldn’t mind living near a wind farm.
As my colleague Robinson Meyer has written, “American laws today give even a small, well-resourced minority plenty of tools to block a project” like a wind farm, and “what’s more, once that small group starts campaigning against a project, the public’s broad but shallow support for, say, a general technology can crater. That’s what happened recently in New Jersey, where a once broadly pro-wind public has turned against four proposed offshore wind farms.”
“It’s a very expensive form — probably the most expensive form of energy.” [Jan. 20, 2022]
Fact check: Wind in general is not the most expensive form of energy, but offshore wind is very expensive — for now.
Of the energy sources we’re currently used to, nuclear is usually cited as having the highest levelized cost of electricity — that is, it has the highest average cost per unit of electricity generated after construction, maintenance, and operation have been taken into account. Peaker plants — gas-powered plants that run just during times of peak demand — usually come in second.
Offshore wind is costly, with the levelized cost of electricity from a subsidized U.S. offshore wind project increasing “to $114.20 per megawatt-hour in 2023, up almost 50% from 2021 levels in nominal terms,” BloombergNEF reports. Many of the factors making offshore wind so expensive — including permitting delays, high interest rates, and supply chain issues — will abate with time. Meanwhile, onshore wind is one of the cheapest forms of electricity available and has boasted a “lower LCOE than gas plants since 2015,” Sustainable Energy in America reports.
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Data centers are a big test for the nascent industry. But they also can’t fill the orderbooks.
For the last few years, there’s been just one story dominating the economy, Silicon Valley, and much of the climate tech world too: artificial intelligence. It has consumed investor’s time and money, leaving relatively little for the rest of the startup ecosystem. But for companies that can hitch themselves to the AI boom and tie their value proposition to the data center buildout, this narrow funding focus can be a tailwind.
The most obvious beneficiaries so far have largely fallen into two camps: startups using AI to build cheaper, better products or those developing technologies to cleanly power data centers themselves. But what about the companies actually manufacturing the physical materials behind these facilities? The data center buildout is ultimately an investment in the physical economy, which largely means an investment in concrete — the most widely used man-made material on Earth.
Cement, the key ingredient that binds concrete together, accounts for 8% of global CO2 emissions, and is a major driver of hyperscaler’s scope 3 emissions. Microsoft and Google’s recent sustainability reports, for example, reveal that their largest emissions category isn’t electricity but “capital goods,” which includes the embodied carbon in their physical assets and infrastructure such as the concrete, steel, server racks, and silicon used to build data centers.
Cement is a big part of that picture because producing it typically requires burning limestone in kilns at extremely high temperatures, a process that both uses large amounts of fossil fuels and releases CO2 through the underlying chemical reaction itself. So if hyperscalers are serious about decarbonization, one might expect them to be pretty interested in startups such as Brimstone, Sublime Systems, and Fortera, each of which is pursuing a different approach to reducing cement’s carbon footprint.
And they are interested. But that alone won’t fill these company’s orderbooks or offset the headwinds generated by the Trump administration rescinding previously obligated grants. That challenge has only been compounded by climate tech’s broader fall from favor as investors chase flashier, more explicitly AI-centric bets.
Still, Cory Waltrip, Sublime’s VP of business development, told me that data centers make a fantastic beachhead market for the company’s low-carbon cement, which it produces through an electrochemical process that eliminates the need for high-temperature kilns. Hyperscalers, he said, have both the market power and financial runway to think long-term about “the way that they’re signing agreements” and “how you can structure those agreements.” Of course, “the balance sheet and the amount of capital that they allocate towards sustainability commitments” doesn’t hurt either.
Last May, Microsoft signed an offtake agreement with Sublime to purchase up to 622,500 metric tons of cement from the company’s future demonstration plant in Holyoke, Massachusetts, as well as a yet-to-be-sited full-scale facility. The deal is unique because it doesn’t require Microsoft to actually use Sublime’s cement in its data centers. Since cement is expensive and impractical to ship long distances, what Microsoft really purchased is the cement’s so-called “environmental attributes,” allowing Sublime to sell the physical product to local customers while Microsoft gets to claim the associated emissions reductions.
It was one of the first deals in the cement industry to decouple the physical product from its environmental benefits. But that good news was quickly overshadowed. Just eight days later, Energy Secretary Chris Wright announced the cancellation of 24 awards from the DOE’s Office of Clean Energy Demonstrations, including a $87 million grant for Sublime and a $189 million grant for Brimstone. That sent Sublime into a tailspin: In December, it paused plans for its demo plant, and in March it laid off roughly two-thirds of its workforce. The company has since filed a suit in the court of federal claims, alleging that the DOE breached its contract with Sublime, but a resolution could take years.
All the cement-hungry data centers in the world would struggle to make up for the loss of that federal funding. Hyperscalers want to buy low-carbon cement from companies that already have a credible pathway to commercial production, not foot the bill for a first-of-a-kind plant.
So Sublime is now pursuing “alternative scale up plans” that don’t involve the Holyoke facility, with Microsoft remaining “a committed customer,” Waltrip said. The most promising option involves co-locating with existing but underutilized standard cement plants in North America or Europe. Doing so could reduce capital costs by roughly 20% to 40%, Waltrip told me. “We can use all of the existing crushing, grinding, finishing, and storage equipment that an existing cement plant already has.”
Building in Europe — something Sublime has yet to commit to but is certainly considering — could also open the door to other non-dilutive public financing, such as the bloc’s roughly €40 billion EU Innovation Fund, which regularly backs industrial decarbonization projects such as low-carbon cement.
In the meantime, the company also says it’s made significant process improvements that could drastically change the scale at which it builds plants. While former CEO Leah Ellis described Sublime’s future commercial facility as a “megaton-scale plant,” Sublime now thinks it could economically produce the material in 50,000 to 250,000 metric tons-per-year facilities. These smaller plants would be far easier to finance without relying on large government grants, Waltrip told me.
Sublime is exploring multiple other undisclosed data center engagements as well, as Waltrip revealed that “we’ve completed materials testing with at least one hyperscaler. We’ve completed a concrete demonstration pour with another hyperscaler,” and “we’ve negotiated or are in the process of negotiating commercial agreements with other hyperscalers beyond Microsoft.”
The company also conducted a small test pour of its low-carbon concrete last year with STACK Infrastructure, a data center developer that leases out its facilities. But while the material has exceeded performance standards, STACK is unlikely to become a customer anytime soon. “If we had a commercial plant ready to go, I think we would be having no issues with finding customers for that product,” Waltrip told me. The challenge is that developers outside the major hyperscalers typically lack the financial flexibility to sign long-term offtake agreements for a product that may not reach meaningful scale until the mid-2030s.
So for now, Google, Microsoft, Meta, and Amazon remain the most sought-after buyers.
Brimstone, another low-carbon cement company, also landed a major hyperscaler deal last year. The company, which still uses kilns but replaces limestone with carbon-free calcium silicate rocks in its production process, agreed to supply Amazon with an undisclosed amount of cement and supplementary cementitious materials, which can partially replace cement in concrete. CEO Cody Finke told me he couldn’t share any additional details, including the volume of materials reserved or when he expects deliveries to begin, though he readily acknowledges the impact of the data center boom.
“There’s no question that the data center buildout has increased the demand for these materials,” Finke told me. Early last year, the company announced that it’s also figured out how to adapt its process to produce alumina — the refined material that smelters turn into aluminum. Data centers also use this metal throughout their operations in structural panels, server racks, and cooling systems. Eventually, the company says it will be able to make additional critical minerals and materials including steel, magnesium, and titanium.
For now though, Brimstone is working to complete construction of its demo plant in Reno, Nevada, which the company recently said it expects to be operational in 2028. Finke was somewhat more cautious, however, telling me only that it should come online by “the end of the decade.” The company’s first full-scale plant, the location of which it’s yet to announce, is slated to begin operations around 2034, producing 350,000 metric tons of alumina and an undisclosed amount of cement and other materials.
But like Sublime, Brimstone also lost a major source of federal support when the Trump administration rescinded its $189 million DOE grant, which was intended to finance construction of the demo plant. Finke, however, insisted this hasn’t altered the company’s timeline because Brimstone, having netted over $80 million to date, “had effectively raised the money that we needed, regardless of the grant.”
Finke isn’t relying on the goodwill of hyperscalers either, even though many do appear willing to pay a green premium in order to align with their ambitious, if flailing, decarbonization agendas. “To be frank, I don’t think that it’s that important to the transition whether or not those climate policies exist, because the companies that really matter are going to be cheaper anyway,” he told me.
Brimstone, he argues, is one of those companies. By co-producing multiple products at once, each can effectively offset the cost of the others, and Finke expects even the cement produced at the Reno demo plant to sell at standard market rates. Ultimately, while he sees growth in the data center industry as a tailwind, he doesn’t think Brimstone depends on that market, noting these facilities still only account for a small sliver of global cement demand. The company’s primary customers, he said, will ultimately be traditional buyers: concrete producers purchasing cement and aluminum smelters buying alumina.
Yet data centers willing to negotiate multi-year contracts still represent uniquely valuable first customers in an industry where such agreements are exceedingly rare. Instead, producers typically sell cement into a merchant spot market, where buyers purchase from whatever supplier meets their myriad requirements at the time. But that leaves low-carbon materials startups in a bind, Fortera’s CEO Ryan Gilliam told me. “When you’re trying to bring a new technology to market like us, you typically use offtake agreements to get project financing to justify building up big projects,” he explained. Potential investors simply want to see demonstrated future demand.
Fortera, which has raised about $150 million and has an operational pilot plant in California, captures the CO2 emitted from conventional cement production and converts it into a mineral form that then becomes part of the cement itself. Last year, it secured a strategic investment from Microsoft’s Climate Innovation Fund to help finance its first commercial-scale facility, expected to produce 400,000 tons of cement per year. In return, the tech giant secured the right to procure Fortera’s low-carbon cement and its associated environmental attribute certificates — more of a reservation than the binding offtake contract it signed with Sublime.
Just one plant of this size “would meet all the hyperscalers’ needs easily,” Gilliam told me, underlining Finke’s point that data centers will by no means represent a cement company’s largest buyer long-term. “Most hyperscalers, you’re talking maybe upwards of 100,000 tons a year of requirements around cement, and that might even be at the upper end,” Gilliam explained. By comparison, standard cement plants typically produce about a million tons of product annually.
So while Gilliam and others are happy to ride the AI boom, they also recognize that data centers are likely more valuable as an early market signal than a long-term source of demand. Even now, it remains unclear whether the boom is even a net positive for the sector as a whole.
“The number of AI startups and the amount of money that’s been diverted into that space definitely changed the pool of investors that you can go to right now,” Gilliam told me. And that’s the core paradox. The data center boom has become one of the clean cement industry’s most promising early markets and one of its fiercest competitors for capital. Welcome to the AI economy.
The energy developer is backing off after a Heatmap report.
Clearway says it is backing off its plans to build a data center and gas power plant on federal land, days after Heatmap revealed the energy developer’s proposal.
Last week, I reported that Clearway asked the Trump administration’s Bureau of Land Management to swap a five year-old application for a solar farm’s permits with “a proposed data center and natural gas facility.” Clearway’s chief development officer John Woody had written in a letter to BLM dated April 3 that the swap was “the result of a shift in our internal development priorities” and intended “to better align with the goals of our Administration.” He also noted the plans were in “exploratory early stages.”
This news fit a trend. I obtained Clearway’s letter right after reporting on a different solar project on federal land that was being swapped for a data center. But it turns out, the company’s internal thinking continued to shift: on Friday, they reached out to me saying they are now nixing the data center and gas plant, after concluding it wasn’t the right call for their business.
“Since our initial filing, we’ve evaluated how to make the best use of this public land in a way that serves its intended purpose: the public interest. As a clean energy developer and operator, our focus in Nevada remains solar and battery storage,” Clearway said in a statement it provided to me from an unnamed spokesperson. “We are in the process of amending our application to reflect the state’s growing demand for low-cost, reliable energy.”
In addition, Clearway on Monday sent a letter to BLM formally alerting the agency it has no plans to build the data center, which it also provided to me.
When I first broke news of Clearway’s plans, I said it was an apparent aberration – they oversaw relatively few fossil projects and had never worked in data centers. I chalked this pivot up to yet another energy developer changing its tune with the winds of national politics. Now that the company is apparently sticking to its guns, I’m mostly just left wondering what happened here – and relieved some still remain committed to zero-emissions power in the booming business of electrons.
On ‘draconian’ water cuts, Tesla’s China business, and Italian nuclear
Current conditions: Slow-moving storms are set to pour rain on the American Northeast, drenching New York City • Temperatures in Phoenix are to top 113 degrees Fahrenheit for the next two days before the heat dome starts to ease • Across China, 11 weather stations broke their August hottest records.

Washington State officials ordered thousands to evacuate parts of Spokane over the weekend as “home after home caught fire and exploded into flames along with trees” as winds of up to 45 miles per hour fanned a “wall of flames,” according to The Spokesman-Review. Governor Bob Ferguson activated the National Guard to battle against what the newspaper called one of Spokane’s worst natural disasters in history. Major Gen. Gent Welsh, the adjutant general in charge of Washington’s Air and National Guard forces, said the fire conditions eclipsed anything he’d seen in his 38-year career. “When the sun sets and the sun rises, we are going to be in shock,” Welsh said at a news conference. By Sunday, more than 640 homes had been reduced to charred ash. Tom Clemo, the incident commander leading the firefighting effort, said it would take days to assess just how many properties were lost. “Probably the largest, most destructive fire in Washington’s history occurred yesterday afternoon,” he told the paper. The Pacific Northwest has been primed for a big fire since at least last year, as my colleague Jeva Lange, a native daughter of the region, wrote last year.
The Trump administration’s final plan to relieve the drought-parched Colorado River over the next decade puts Arizona first in line to slash its use of the freshwater. The proposal, finalized on Friday, departs from the decades-long rules that traditionally governed how the water was divided between states, according to E&E News. Instead, the Department of the Interior is set to issue smaller plans every two years to decide how the water supply is distributed. “This framework provides the flexibility to respond to changing hydrologic conditions while preserving the opportunity for the Basin States to continue working toward durable, consensus-based solutions,” Secretary of the Interior Doug Burgum said in a statement. But Arizona Governor Katie Hobbs, a Democrat, said the plan is filled with “unacceptable options that include the federal government forcing Arizona to take the majority of draconian water cuts.”
When Tesla entered the Chinese market, billionaire CEO Elon Musk designed the division to be easily separated from the U.S. business in case of geopolitical tensions. Now The Wall Street Journal is reporting that Musk is exploring a sale of the unit to clear the way for a merger between his electric auto giant and SpaceX, his rocket and satellite enterprise. “Obviously we can’t talk about, you know, combining companies and that kind of thing on earnings calls,” Musk told investors last week. “It [has] got to be done with the appropriate process.” On X, Musk — who has routinely beefed with the nation’s leading financial newspaper — called the story “fake news.” But the timing is notable. As Heatmap contributor Andrew Moseman wrote last month, China — along with Europe — has been fueling a resurgence in Tesla’s sales.
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American Electric Power has outbid a data center developer to buy a coal plant in West Virginia, the Financial Times reported last week. The utility inked a deal to buy the Longview coal plant located along the state’s northern border with Pennsylvania. The name of the data center company was not included in the story, but sources told the reporter Martha Muir it was a “household name” and a “competitive bidding process.” As I told you in June, the Trump administration is betting $850 million on a coal revival. But my colleague Matthew Zeitlin explained last year what the bigger problem is: Even the plants that get funding to stay open keep breaking down.
Base Power, one of the nation’s largest developers of residential battery storage, is raising money on a $13 billion valuation, The Wall Street Journal reported Monday. Co-founded by CEO Zach Dell, son of computer magnate Michael Dell, the three-year-old company’s model is to deploy tens of thousands of batteries at homes and tap those units to balance out the grid. “We have so much to do and so much room to grow, and we’re very early in the scope of the opportunity,” Dell said.
A mining company says it’s found America’s largest deposit of tungsten, a key metal needed for ammunition and weapons production. But NASA is blocking development of the resource in eastern Nevada. The problem, the Financial Times reported, is that “a third of the company’s claim covers a unique region used to track signals beamed to Earth by satellites in space,” cautioning that mining could disrupt the operations.