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Whether they can continue to do so depends on how long the green freeze lasts.

This story is part of a Heatmap series on the “green freeze” under Trump.
By now I’ve come to expect the responses. “We’re continuing to assess the situation and aren’t able to speak on it at this time.” “We are not able to provide comment on this matter.” Oftentimes, all I’ll receive is a Gmail prompt to an unanswered email: Sent 9 days ago. Follow up?
This week, my colleagues and I are covering the “green freeze,” an economy-wide trend of canceled clean energy projects, a retreat from climate tech investments, and a tightening of purse strings perhaps best epitomized by Breakthrough Energy’s pullback from grantmaking and policy advocacy. I aimed to look more closely at how nonprofits are navigating the new political and economic landscape — with climate no longer a key policy focus of the White House, would related causes lose their appeal to donors? Or would the opposite be true: Given the federal funding gap, would philanthropy surge to fill the vacuum? Would it even be prudent to do so?
“In my experience, when the government takes a step back from a particular impact area — and climate is no different — often philanthropists end up leaning in,” Amy Duffuor, a co-founder and partner at Azolla Ventures, told me. Azolla invests in climate tech start-ups using both traditional venture capital and catalytic capital, the latter of which comes primarily from philanthropists. But for many organizations, especially at the grassroots level or in the environmental justice space, it might not be that simple.
Talking about donors is always delicate and awkward, but I was still surprised by how closed-lipped local and national nonprofits became when I started asking these questions. Many groups that have spoken candidly with Heatmap News in the past declined to talk to me on the topic, even on background. One media relations manager for a conservation organization that receives federal grants delicately implied, while turning down my request for comment, that no one wants to stick their neck out when there’s a climate witch-hunt going on.
“Nonprofits have to be really conscious of where their support comes from and how they protect that,” Cyrus Wadia, the CEO of Activate, a nonprofit that offers fellowship support for early-stage science entrepreneurs looking to launch climate start-ups, told me when I explained what I was seeing.
He’s right that the wariness is understandable. The Trump administration is attempting to claw back some $20 billion in funds awarded to climate nonprofits under President Joe Biden, including hundreds of grants from the Environmental Protection Agency, many of which were earmarked for local environmental justice nonprofits. A number of these nonprofits are, as a result, facing unexpected funding shortfalls, forcing them to consider cuts to staff and programs in the weeks and months ahead. “If this lasts much longer … then we’re going to start seeing more organizations saying this program and that program have to shut down, they’re having to reduce capacity because they can’t make payroll, or they’re closing their doors,” Rick Cohen, the chief communications officer for the National Council of Nonprofits, recently told The Chronicle of Philanthropy.
There is a sense among some in the nonprofit space that the hesitation among donors might be more of a reassessment than an actual freeze. “There is definitely a ‘pause and wait and see and figure out our strategy and maybe start over’ moment that I think a couple of these foundations are having,” Lara Pierpoint, the managing director of Trellis Climate — a 501(c)(3) that helps philanthropists, donors, and foundations invest in climate opportunities that wouldn’t go forward without philanthropic support — told me. A policy director for a national policymaking and advocacy group similarly suggested to me that the election of Trump caught some of their donors flat-footed, adding that they “didn’t have strategies ready to go.”
That doesn’t necessarily indicate a broader trend. “The good news is that we aren’t seeing a huge amount of change just yet among our donor set,” she told me. “I think our donor set tends to be folks who are already very focused on climate,” she went on. “They are not only not afraid of the word ‘climate,’ but I think they really see the need to focus on it, particularly given what’s going on.”
She did note, however, that it’s still early, and that there are two main headwinds she and her peers are facing. “Some of the donors that we’ve spoken to have said, ‘Hey, we can’t really talk right now or commit to anything because we’re doing a wholesale reevaluation of our portfolio and how we approach giving,’” she said. Additionally, philanthropists who think of themselves more as investors might have questions about how viable their investments will be, given what’s happening with both federal priorities and the gyrating economy.
As my colleague Katie Brigham has reported, climate tech investment had already started to slow down from the frothy days of the early Biden administration; some companies had started to pivot away from promoting the clean, green climate perks of their business models even before Trump took office. (Bloomberg has labeled this semantic game “greenhushing”; the general wisdom is, “it’s still a great time to start a climate startup. Just don’t call it a climate startup.”) Anxieties about the economy can, as a rule, also impact the giving patterns of donors.
“At the end of the day, for very good reasons, philanthropists want to invest in projects and ideas that are likely to be successful and go forward and do the things they are meant to do,” Pierpoint said. “And all of that is under threat right now because climate tech is hard, it’s expensive, it’s competing with fossil fuels, and counting out government support and tax credits, the picture is daunting.”
Others were similarly cautiously optimistic about the days ahead. “There’s a gap, and philanthropy is often well-suited to close gaps,” said Duffuor, the partner at Azolla Ventures. (Both Azolla Ventures and Trellis Climate are part of Prime Coalition, a nonprofit focused on climate financing.)
Like Pierpoint, Duffuor expects to see a “doubling down” by philanthropists who are motivated by climate. Donors who were more on the cusp to begin with — who saw climate investment as en vogue, or were more driven by financial returns — might back away, she agreed. But it seems unlikely that people who genuinely believe in climate causes will be dissuaded by who’s in the White House. “I think people are waiting to see where the gaps are most effective,” she said.
Wadia, the CEO of the venture capital firm Activate, who spoke with me from the CERAWeek energy conference in Houston, agreed that while the language around giving may change, he is still seeing a “momentum for innovation.”
“If we all just step back, what are we really trying to do?” he said, speaking of nonprofits, philanthropists, and start-ups alike. “Everybody might have a different version of how we do it, but we’re all working towards trying to make the planet a better place for people — for all species on this planet. There’s a general consensus that’s a good thing.”
The nonprofit sector is large and diverse, and the impacts of the political and economic moment will not be felt equally. Local environmental justice nonprofits that relied on federal grants will undoubtedly be worse off than the better-insulated climate financing organizations like Activate, although the turbulence at Breakthrough suggests that even the deepest of pockets can still close to climate causes. (Tellingly, companies funded by Breakthrough’s investment arm, Breakthrough Ventures, do not appear to be affected.) The tension and anxiety aren’t likely to break soon; uncertainty and fear remain pervasive.
If anything can be counted on, though, it’s that climate causes — whether local, national, community-focused, or innovation-related — will need their donors more than ever. The people I spoke with expect them to step up. But is that even a good thing?
“It’s not just the immediate impact — the question mark around grant funding and things like that,” Pierpoint of Trellis Climate told me. “It’s also the question of, is this, in the long term, going to reduce trust in the federal government in a way that lowers investment when folks are trying to leverage dollars?” She paused. “I think it would be bluntly catastrophic for climate development if we get into that world.”
Editor’s note: This story has been updated to reflect the fact that Activate is a nonprofit, not a venture capital firm.
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Timber companies think of them as pests, but new research indicates that stands of the slender tree can act as barriers against raging flames.
Colorado’s Aspen Acres Fire is named after a quiet RV campground located high in the San Isabel Mountains, about a five-hour drive due southeast of the state’s better-known Aspen. Both places, however, are named after the iconic deciduous tree known for its golden leaves in the fall. While the start of monsoon season may yet prevent the Aspen Acres Fire — the seventh-largest in Colorado’s history — from joining Utah’s Babylon Fire as the second 100,000-acre “megafire” of the season, the conflagration has been aided in its rampage not by aspens, but rather by dead, downed, and blighted ponderosa pines, spruce, and Douglas firs. The wildfire has now burned over 98,000 acres and nearly 300 homes, and is only 36% contained due to steep terrain that has hampered firefighting efforts, along with extreme drought conditions and beetle infestations that have greatly degraded the forest health of the region.
But what about its aspens? Though the extent of the damage at the campground remains unknown, according to a recent study of Populus tremuloides, Colorado’s iconic golden trees could be one of the keys to more wildfire-resistant forests in the future.
Flavie Pelletier, a recent PhD graduate of McGill University’s Natural Resource Sciences program, told me she first became interested in aspens while working as a tree planter in British Columbia. “The historical assumption on aspen is that stands are very good at stopping fire progression. But the paradox is that if you take an aspen by itself, it’s going to burn at high severity,” Pelletier, who published her findings in Forest Ecology and Management, told me.
By creating near-real-time maps of fires using satellites and comparing them against the Canadian Forest Service’s newly available maps of dominant tree species in the boreal, Pelletier and her colleagues discovered that aspen were almost two and a half times more common at the perimeter of a burned area than inside it. The finding suggests that despite the flammability of a single aspen with its thin bark, stands of aspen act as a kind of barrier when wildfire ran up against them, likely because they lack the flammable resins of conifers and their high foliage helps force running crown fires back toward the ground. Pine and spruce, by contrast, showed a near-zero or even negative effect.
When aspen stands did burn, Pelletier found they did so more slowly: A tree cover of 50% aspen burned at about 224 hectares per day, compared to 717 hectares per day in areas where aspen made up less than 10% of the cover. That’s the equivalent of about 1,000 FIFA-regulation soccer pitches per day in places where aspen are sparser — like Aspen Acres.
Even more surprising, though, was that the pattern held true in the early season, when the trees are still twiggy and have yet to grow their moisture-filled leaves, and despite the severity of fire weather. “Aspen still showed resilience even when the fire weather was very intense, [like in 2023, when] we had all the fires,” Pelletier said.
But she was also the first to admit that seasons are getting more extreme, and that there’s no guarantee the pattern will hold for the next 10 or 20 years.
Pelletier was reluctant to make a policy recommendation based on her research, noting that she’s not a forest manager. But in Alberta and British Columbia, timber companies spray hundreds of thousands of acres of timber with glyphosate, an herbicide, to kill off aspens because the trees outcompete the more commercially valuable conifers. Her findings are “a big argument to stop the spreading of herbicides because you’re increasing the risk of fire in your forest by removing aspen,” Pelletier said.
Despite her hesitation, Pelletier is explicit in her paper about one thing: that aspens “should be encouraged — specifically around key landscape positions, such as population centers” — given that they are a proven means of hardening the wildland-urban interface against wildfires. It might be too late for the idyllically named Aspen Acres, of course; any of the aspens that once drew tourists to the area are likely now ash.
But this not be Colorado’s last fire, either.
Current conditions: More than two dozen locations across the Mountain West and Midwest broke temperature records Sunday as the nation’s heat wave roasted the Central United States • At least 12 people died fleeing a sweeping wildfire in Spain as hundreds of firefighters battled the flames • In Colorado, the ongoing Aspen Acres Fire has destroyed 780 structures.
During President Donald Trump’s first term, his administration’s big fight over public lands centered on the last two national monuments approved by Barack Obama on the way out of office. In 2017, Trump signed executive orders slashing the size of Bears Ears National Monument by 85% and nearby Grand Staircase-Escalante, both located in Utah, by half. Legal challenges were still pending when President Joe Biden restored the reserves to their initial size in 2021. But ABC4 in Utah reported last week that Trump planned to announce a new executive order to shrink the boundaries of the monuments yet again, likely this afternoon. “The Antiquities Act was a one-way statute when Teddy Roosevelt signed it into law. It was a one-way statute when President Trump tried to ignore it in 2017. It’s still a one-way statute today,” Aaron Weiss, the executive director of the Center for Western Priorities, said in a statement. “Just last month, Congress had a chance to weaken the management plan for Grand Staircase-Escalante and declined.”
In April, the Senate approved a House resolution using the Congressional Review Act to clear the way for a mining operation near Minnesota’s Boundary Waters, in what my colleague Jeva Lange called a declaration of “open season on public lands.”
Over the past 12 months ending in July, 56 fusion companies raised a total of $4.5 billion, a 69% jump over 2025’s total. That’s according to the latest data from the Fusion Industry Association’s annual report. Total funding since 2021 now stands at $14.2 billion, a sevenfold increase. Twice as many companies are now competing as when the report was first published six years ago. This year’s figures include major financing rounds from Commonwealth Fusion Systems, which raised $863 million last August; Inertia Enterprises, which brought in $450 million in February; Helion Energy, which raked in $456 million last month; and the European champion Proxima Energy, which netted $518 million this month.

Back in January, I told you when the price of copper hit a record high. We kept track, too, of Chilean miners’ plans to ramp up production last month. But Chile’s output of copper fell sharply in May, according to a Mining.com analysis of data from Codelco, the country’s national miner. Production from major miners such as BHP dropped over 18% year-on-year to 106,300 metric tons. The fall comes as key mines in the South American nation face declining ore quality.
The move comes right as one of China’s biggest solar manufacturers switched from using silver to copper in its panels in response to what Bloomberg described as the surging prices of the precious metal.
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The world’s first commercial satellite powered by nuclear energy has launched into space after escaping the Earth’s atmosphere on a SpaceX Transporter-17 vessel. Miami-based City Labs, the company behind the launch, specializes in designing, developing, and manufacturing micro power technology based on the radioisotope tritium. The technology is meant to provide long-lasting, maintenance-free power for medical, industrial and space applications. “This is a historic step for commercial nuclear power in space,” City Labs CEO Peter Cabauy told World Nuclear News. The system “demonstrates that safe, compact, and regulatory-approved nuclear power systems are ready for routine commercial deployment.” The technology “enables persistent, always-on” operations “that are not constrained by sunlight or battery life.”
New York is behind on its development of clean energy. Its offshore wind buildout has stagnated. The state has limited space and sunlight for large-scale solar. And while Albany is positioning itself as the state leader on nuclear power with plans to construct more reactors upstate, those efforts are long term, and only just began. But one source of green power is expanding faster than expected: rooftop solar. New Yorkers installed 8 gigawatts of distributed solar capacity, putting the state ahead of schedule moving toward its legally-binding goal of 10 gigawatts by 2030. “New York continues to set the bar high as we mark another milestone for solar within our communities across the state,” New York Governor Kathy Hochul, a Democrat, said in a statement. “This is low-cost, reliable clean energy that is delivering cost savings for families and businesses while expanding the availability of renewable energy which benefits our environment, our economy and contributes to New York’s diverse energy resource mix.” That’s optimistic. But as Heatmap’s contributor Jesse Jenkins explained on our Shift Key podcast in 2023, there are limits to how big an impact rooftop solar can have on emissions.
China, as I told you last week, has been investing heavily in green hydrogen. The statement in Beijing’s latest Five-Year Plan confirms that green hydrogen, ammonia, and methanol “will play a significant role in decarbonizing China,” Hydrogen Insight reported.
Building a data center is also quite carbon-intensive.
When I helped start Heatmap News three years ago, I didn’t think I would be writing this much about big tech companies.
I knew that, sure, they were crucial to America’s ability to develop and scale some next-generation emissions-reducing technologies. (By then, Microsoft had already started its huge carbon removal purchasing program.) And, yes, I knew they bought a lot of renewables. But I still understood their clean energy programs chiefly as an employee perk — a way for some of the economy’s richest firms to show their largely urban, college-educated, and liberal employees that they cared.
Perhaps that was true once. It’s not true anymore. Over the past several years, the tech companies have become major electricity consumers and producers in their own right. Artificial intelligence has turned their electricity procurement and development businesses into core operational competencies. (Meta and Microsoft have even considered entering the electricity trading business.) Some of the thorniest questions in climate policy were first encountered by these tech companies.
More importantly, their hunger for electricity has transformed them into quasi-industrial companies — and given them enough heft in the market to sometimes counterbalance (and sometimes collaborate with) the utilities and fossil fuel firms that previously steered the sector. As such, they’re now crucial parts of the U.S. decarbonization story.
Three companies in particular dominate the artificial intelligence cloud business: Google, Amazon, and Microsoft.
The country’s best-known frontier labs, such as OpenAI and Anthropic, rely on these companies to provide their compute power; Amazon Web Services is the backbone of virtually the entire online software industry. Amazon, Google, and Microsoft account for more than half of the country’s data center power capacity, according to the investment firm Jeffries.
So these companies’ emissions are, in a sense, not only their own; they also give us a view into the AI industry’s carbon footprint more broadly.
Over the past two weeks, all three of these cloud providers released their energy and emissions data for the past year, and we’ve looked at the top line findings from these reports in past editions. Today I want to briefly dive into what they could mean together.
Let’s handle the part you already know: Everyone’s emissions are up.
Microsoft’s emissions grew by 25% last year, their largest year-over-year leap since the pandemic. Amazon’s emissions leapt by 16%, its largest one-year increase ever. Google’s emissions increased by 18%, rising above their pre-pandemic level.
This surge will make the companies’ climate goals increasingly difficult to meet — and some of them are coming up fast. Microsoft has pledged to become ‘carbon negative’ by 2030, meaning it must remove more climate pollution from the atmosphere than it emits in that year. Google has pledged to achieve net zero by 2030, a goal that requires — by its own estimate — cutting its emissions in half by that year, as compared to their 2019 level. Amazon, meanwhile, has pledged to achieve net-zero in its operations by 2040.
All three firms’ greenhouse gas emissions are up because of the AI data center boom. Microsoft consumes nearly four times as much electricity as it did before the pandemic; Google’s electricity use has more than doubled.
These companies’ energy use has swelled, too, but at least as of last year, nearly all of their energy demand still took the form of electricity. When we think about “electrification” in the national context, perhaps we should think at least as much about these AI megalodons as we do about heat pump or battery manufacturers.
Amazon, to its shame, does not publish recent electricity usage data, so it doesn’t appear on either of these charts.
But outsiders have estimated its power consumption based on the numbers it does publish. Hendrik Rood, an IT researcher and consultant in the Netherlands, calculates that Amazon’s data center business used 78,000 gigawatt-hours in 2025. That would mean it consumes nearly as much electricity as Microsoft and Google combined.
As I cautioned yesterday, some of these figures are already outdated. Although all three companies just released their 2025 sustainability data, Microsoft brackets its report to the fiscal year, which ended on June 30, 2025. Google and Amazon’s data covers the calendar year.
In what might be a quirk inherent to the genre, all three sustainability reports have a somewhat defensive tone (or at least a writing style that tries to anticipate quibbles). These companies know that their sustainability pledges, embraced in the heady flush of 2020 and 2021, have become much more difficult to fulfill in the AI era. And they want you to know that all of their emissions could be worse — if not for their corporate policies, pollution might be much higher.
I can’t say I find these counterfactuals entirely believable. We don’t know what Google or Microsoft or Amazon would do if, say, computing were more energy intensive or a certain process more environmentally damaging. And Jevon’s paradox suggests that every gain in efficiency — especially for a service as in-demand as AI — will make it cheaper to use AI, therefore raising its energy demand.
But I do think it’s worth sharing these claims to get some perspective. Google, for its part, says that its corporate emissions would be five times higher than they are if not for its total slate of policies:

Microsoft takes a more clinical approach. It selects four of its corporate policies: “carbon-free electricity, sustainable fuels, XBOX console efficiency,” as well as efforts to decarbonize its Surface tablet production. If not for these interventions, it says, it would have emitted 34 million tons of greenhouse gas into the atmosphere last year, not the 21 million tons that it did produce.
For all the focus on the difficulty of powering data centers (including by Heatmap), electricity does not drive most of these companies’ emissions — or it didn’t in the first half of last year, at least. The majority of Microsoft, Google, and Amazon’s greenhouse gas emissions came from what are dubbed “scope 3” emissions, a somewhat nebulous category that includes buildings, employee travel, and the full carbon footprint of their supply chain. This category reflects the AI boom in its own way.
(Skip this if you’re a sustainability nerd: In the classic schema used for corporate emissions accounting, “scope 1” emissions are direct fossil fuel pollution from an asset that the company owns or controls, “scope 2” emissions are pollution associated with the electricity, steam, or chilled water purchased by the company, and “scope 3” emissions are everything else — pollution from the company’s upstream supply chain and its downstream product use. I find this scheme makes somewhat more sense for businesses like airlines and automakers than it does for technology conglomerates. But that’s a different newsletter.)
It makes sense, then, that Amazon should have huge scope 3 emissions. The scope 3 subcategory called “Purchased Goods and Services” drives the largest share of its emissions; these include pollution from goods and services that Amazon buys for its employees to use, as well as all the embodied carbon in its line of Amazon Basics products.
But the biggest driver of scope 3 emissions — and thus for emissions overall — for Microsoft and Google came from “capital goods,” a category that covers new construction, physical assets and other fixed infrastructure used to produce products and services. More than 40% of Microsoft’s total emissions came from capital goods, and they made up more than 9 million metric tons of the company’s greenhouse gases. Google doesn’t fully aggregate out its “capital goods” category, combining it with the “use of sold products” subcategory, but it was responsible for almost 9 million tons as well.
These capital goods include the new data centers themselves: all the cement, steel, server racks, and silicon that actually make up the physical infrastructure supporting the AI boom. Here at Heatmap, we often focus on the electricity sector because it’s where so much change. But it’s good to remember that construction remains enormously carbon-intensive, and the literal buildings that house AI are, in many cases, still driving a disproportionate amount of emissions.