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We read the Heritage Foundation’s Project 2025 playbook so you don’t have to.

When former President Donald Trump exited the Oval Office in January 2021, he left behind a record of environmental rollbacks unrivaled in modern U.S. history. Over his 1,461 days as commander-in-chief, Trump replaced, eliminated, or otherwise dismantled more than 100 environmental rules — at least — from repealing the Clean Air Act to allowing coal plants to dump toxic wastewater into lakes and rivers to declaring open season on endangered gray wolves.
President Joe Biden then rolled back most of the rollbacks, largely before their full impacts could be felt, which is why some experts say the most significant climate consequence of Trump’s presidency was actually the loss of four years that could have moved the green transition forward.
Had all Trump’s policies gone into effect, the nonpartisan Rhodium Group estimated at the end of 2020, they would have added an additional 1.8 gigatons of CO2-equivalent to the atmosphere by 2035 — more than the annual energy emissions of Germany, Britain, and Canada combined. But even though we never felt the full brunt of them, the medical journal The Lancet estimated that the policies undertaken during his presidency were responsible for 22,000 deaths in 2019 alone due to sharp increases in things like asthma, heart disease, and lung cancer.
Now Trump is once again the presumed Republican nominee and currently leads Biden in general election polls. Were he to win, he has a ready roadmap for building on his dubious environmental legacy: Project 2025, a 920-page document developed by the right wing think tank The Heritage Foundation.
Project 2025 isn’t just a climate plan, or course — it’s a comprehensive proposal, covering everything from immigration to abortion, education, pornography, and child labor. Though billed as a “presidential transition project,” its wishlist includes numerous actions that would require Republican control of both chambers of Congress (admittedly possible, though currently looking like a longshot) to enact. Undaunted, the document sets its sights on the Inflation Reduction Act, Biden’s landmark climate legislation, which — since the U.S. is the world’s second-largest greenhouse gas emitter — is all but necessary to keep the planet off the path to 1.5 degrees Celcius.
Here is how, precisely, Project 2025 aims to gut the IRA, shrink environmental protections, and slow forward momentum on climate change.
“‘Cheap grace’ aptly describes the Left’s love affair with environmental extremism. Those who suffer most from the policies environmentalism would have us enact are the aged, poor, and vulnerable. It is not a political cause, but a pseudo-religion meant to baptize liberals’ ruthless pursuit of absolute power in the holy water of environmental virtue … They would stand human affairs on their head, regarding human activity itself as fundamentally a threat to be sacrificed to the god of nature.”
Republicans have cannily turned “climate” into another culture war buzzword. As with Critical Race Theory before it, this rhetoric strategy divorces the climate movement from what it actually is — a disparate and diverse constellation of ideas for how to move forward in the face of the reality of human-driven global warming — and flattens it into a boogeyman that voters can easily dismiss. Rather than allow for honest debate over the upsides and drawbacks of LNG or of preserving ecosystems versus quickly building out renewables, the effect is to shut down any and all conversation before it can even start.
Project 2025 both outlines and embodies this strategy. In the foreword, Heritage Foundation president Kevin D. Roberts bafflingly characterizes climate as a “pseudo-religion”; elsewhere in the document, “climate extremism” is often lumped alongside “abortion, gender radicalism … and other woke ideas.”
For good measure, the Project 2025 playbook also uses religious metaphors to code any concern about the environment as being morally wrong or even evil. Republicans have already picked up on this cue: “We should not be bending the knee to this new religion … We are flogging ourselves and losing our modern way of life bowing to this new god of climate,” Florida Governor Ron DeSantis argued during a Republican presidential debate last year.
“The National Labs have been too focused on climate change and renewable technologies. American science dominance is critical to U.S. national security and economic strength.”
As part of the Inflation Reduction Act, the Biden administration channeled $1.5 billion to the Department of Energy’s national laboratories for “innovative research in clean technologies” and “advancing U.S. energy security.” This has been essential for “de-risking” the otherwise prohibitively expensive technological advancements necessary for reaching net zero.
Project 2025, naturally, wants none of that: “The three National Labs run by DOE’s [National Nuclear Security Administration] should continue to focus on national security issues,” Bernard McNamee, the former commissioner of the Federal Energy Regulatory Commission under Trump, writes in the document’s chapter on revamping the department. Additionally, the “ill-advised attempt to expand the National Science Foundation’s mission from supporting university research to supporting an all-encompassing technology transition” (a mischaracterization) should be reconsidered, and “there should be a review to measure, prioritize, and consolidate DOE programs based on a range of beneficial factors, including degree of relationship to national security.” (While addressing the nation’s climate goals is an NSF priority, it is not done at the expense of supporting university research. Also, the current director of the NSF is a Trump appointee).
The Trump administration was memorably hostile toward science, and there are no signs he’ll change his heart during a second term; he’s already vowed to revive “Schedule F,” which reclassifies many government researchers and scientists as at-will employees, making them easier to “clean out” if they “frustrate his policies.”
Still, it does appear that the Heritage Foundation sees some usefulness for scientists: “The next administration should fund the design, development, and deployment of new nuclear warheads, including the production of plutonium pits in quantity,” Project 2025 says.
“The next conservative Administration should rescind all climate policies from its foreign aid programs (specifically USAID’s Climate Strategy 2022–2030 ); shut down the agency’s offices, programs, and directives designed to advance the Paris Climate Agreement; and narrowly limit funding to traditional climate mitigation efforts.”
The United States is the single greatest historical contributor to climate change, but Project 2025 has little sympathy for nations that might be suffering as a result. “The [Biden] administration has incorporated its radical climate policy into every USAID initiative,” Max Primorac, a Heritage Foundation research fellow, complains in the document. “It has joined or funded international partnerships dedicated to advancing the aims of the Paris Climate Agreement and has supported the idea of giving trillions of dollars more in aid transfers for ‘climate reparations.’”
Notably, Biden has not promised climate reparations — despite Trump and other Republicans’ frequent claims to the contrary. And while climate change is “a top driver of humanitarian need and human suffering, particularly for the poorest countries,” according to the United Nations, the former president slashed $200 million from environmental initiatives in his 2019 budget, including investments to help nations move away from heavy carbon-emitting industries.
“Taxpayer dollars should not be used to subsidize preferred businesses and energy resources, thereby distorting the market and undermining energy reliability.”
Among the programs and offices Project 2025 wants to eliminate (or at least substantially reduce) funding for are: the Climate Hub Office; the Clean Energy Corps, the Office of Domestic Climate Policy; the Office of Energy Efficiency and Renewable Energy; the Grid Deployment Office; the Interagency Working Group on the Social Cost of Carbon; the Conservation Reserve Program; the Office of Clean Energy Demonstrations; the Office of Environmental Justice and External Civil Rights; “the activities of EPA advisory bodies”; the Office of State and Community Energy Programs; ARPA-E; the DOE Loan Program Office; the Office of Fossil Energy and Carbon Management; “grant programs for things like energy storage and the testing of grid-enhancing technologies”; “carbon capture utilization and storage programs”; the Greenhouse Gas Reporting Program; the Bureau of Energy Resources; the Office of Emergency Management; the National Flood Insurance Program; and the National Oceanic and Atmospheric Administration (more on that below).
“Support repeal of massive spending bills like the Infrastructure Investment and Jobs Act and Inflation Reduction Act, which established new programs and are providing hundreds of billions of dollars in subsidies to renewable energy developers, their investors, and special interests, and support the rescinding of all funds not already spent by these programs.”
Project 2025 opposes green subsidies across the board. It’s especially twitchy about programs aimed at helping “the private sector deploy and market clean energy and decarbonizing resources” — because, supposedly, the “government should not be picking winners and losers.”
Still, while it’s uncertain how much damage a Republican president could do to the Inflation Reduction Act without the help of a conservative-controlled Congress, Project 2025 makes clear there are lots of places conservatives can chip away, including going after “subsidies of electric vehicles,” “subsidies for transit expansion,” and subsidies renewables like wind and solar. Additionally, the Office of Energy Efficiency and Renewable Energy “is a conduit for taxpayer dollars to fund progressive policies, including decarbonizing the economy and renewable resources.” That won’t do: “Eliminate EERE,” it says, or otherwise defund it.
“While individual investors may prefer to invest in ‘green’ companies, ‘woke’ companies, or companies with greater board diversity, and may even be willing to sacrifice some financial gains to do so, the question relevant to [the Department of Labor] is whether, and under what conditions, fiduciaries should be permitted to follow this path as well.”
If we’re being honest, though, isn’t the whole “ESG is evil” thing kind of last year?
“The new Administration’s review will permit a fresh look at past monument decrees and new ones by President Biden. Furthermore, the new Administration must vigorously defend the downward adjustments it makes to permit a ruling on a President’s authority to reduce the size of national monuments by the U.S. Supreme Court.”
President Trump was responsible for the most significant reduction in protected land in U.S. history. When he took office, Biden reinstated the protections — mainly in Utah’s Bears Ears and Grand Staircase-Escalante. Project 2025 prioritizes rolling back the rollback of the rollback, but making it stick by taking the case to the conservative-controlled Supreme Court.
The former acting Bureau of Land Management director under Trump, William Perry Pendley, writes in the section on reforming the Department of the Interior that Biden is “abusing National Environmental Policy Act processes, the Antiquities Act, and bureaucratic procedures to advance a radical climate agenda,” and directs an incoming Republican president to “seek repeal of the Antiquities Act.” Republicans and Democrats alike have used the Antiquities Act over the decades to protect scenic and culturally significant places, including the Grand Canyon, Zion, and Olympic National Parks. Any Supreme Court ruling could effectively curb the ability of future presidents to protect scenic and culturally important parts of the country.
“NOAA consists of six main offices ... Together, these form a colossal operation that has become one of the main drivers of the climate change alarm industry and, as such, is harmful to future U.S. prosperity.”
Thomas F. Gilman, writing on reforms for the Department of Commerce, gets right to the point: “Break up NOAA.” The agency’s “emphasis on prediction and management seems designed around the fatal conceit of planning for the unplannable,” he claims, adding, that “its current organization corrupts its useful functions.”
In practice, that would mean the National Weather Service should “fully commercialize its forecasting operations,” since “Americans rely on weather forecasts and warnings provided by … private companies such as AccuWeather,” Gilman writes. It’s a notable shoutout: Barry Lee Myers, the former CEO of AccuWeather, was briefly a Trump nominee to, uh, run NOAA.
Gilman has ideas for the Office of Oceanic and Atmospheric Research, too, writing that it “provides theoretical science” and is “the source of much of NOAA’s climate alarmism,” and should therefore be “disbanded.” Data from the National Hurricane Center is further ordered to be “presented neutrally, without adjustments intended to support any one side in the climate debate.”
Echoing the Trump administration’s hostility toward the sciences, he goes on to allege that “scientific agencies like NOAA are vulnerable to obstructionism … if political appointees are not wholly in sync with administration policy” — never mind that disagreement is one of the most essential parts of scientific research and progress.
But don’t worry: Project 2025 also calls for an elevation of … “the Office of Space Commerce.” Phew.
Republicans are going to make dishwasher cycle times a culture war or die trying.
Project 2025 dictates that “Congress should reform the Natural Gas Act” to “eliminate political and climate-change interference in DOE approvals of liquefied natural gas exports.” Currently, the DOE must decide if it is in the “public interest” to allow LNG exports to non-free trade agreement countries — the only part of the permitting process that could even potentially consider the export terminal’s impacts on frontline communities or their effect on climate change more largely
How? By narrowing the Natural Gas Act to only consider “whether there is a need for the natural gas” and the “impacts of the actual pipeline itself, not indirect upstream and downstream effects.”
The next Republican president should “immediately” reopen the Arctic to drilling, expand the controversial Willow drilling project, max out offshore oil and natural gas lease sales, and restart coal leasing in Wyoming and Montana, the authors write.
Mandy Gunasekara, Trump’s former Environmental Protection Agency chief of staff, details almost gleefully how the agency’s regulatory powers will be dismantled, from preventing downwind states from “over-controlling” their upwind neighbors to loosening car emission standards and beyond.
Since 1968, California has been allowed to set stricter vehicle emission limits than the federal government thanks to a Clean Air Act waiver; other states are welcome but not required to opt in. As president, Trump revoked California’s right to include greenhouse gases in its emissions considerations and barred other states from adopting its criteria. That seems like it’s back on the table — and could be headed to a consequential decision in the Supreme Court.
Project 2025 proposes a fleet-wide average of 35 miles per gallon, far below current benchmarks of 49 miles per gallon by 2026 and 58 miles per gallon by 2032.
There is no question that the management of wild horses and burros is a big problem for the Western United States. But Project 2025 waves off strategies like “expanded adoptions” and “more effective use of fertility controls” as “not enough,” writing that “Congress must enact laws permitting the BLM to dispose humanely of these animals.”
Project 2025 aims not only to gut the Endangered Species Act, but also to “direct the Fish and Wildlife Service to end its abuse of Section 10( j) of the ESA,” which is being used to reintroduce grizzly bears in Washington state and wolves in Colorado.
Project 2025 says that “the Department of Energy should end the Biden Administration’s unprovoked war on fossil fuels, restore America’s energy independence, oppose eyesore windmills built at taxpayer expense, and respect the right of Americans to buy and drive cars of their own choosing, rather than trying to force them into electric vehicles and eventually out of the driver’s seat altogether in favor of self-driving robots.” But as far as roadmaps go, that doesn’t look much like a way forward — it looks like holding back the inevitable. If that’s the case, then self-driving robots start to look good.
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Rob takes Jesse through our battery of questions.
Every year, Heatmap asks dozens of climate scientists, officials, and business leaders the same set of questions. It’s an act of temperature-taking we call our Insiders Survey — and our 2026 edition is live now.
In this week’s Shift Key episode, Rob puts Jesse through the survey wringer. What is the most exciting climate tech company? Are data centers slowing down decarbonization? And will a country attempt the global deployment of solar radiation management within the next decade? It’s a fun one! Shift Key is hosted by Robinson Meyer, the founding executive editor of Heatmap, and Jesse Jenkins, a professor of energy systems engineering at Princeton University.
Subscribe to “Shift Key” and find this episode on Apple Podcasts, Spotify, Amazon, or wherever you get your podcasts.
You can also add the show’s RSS feed to your podcast app to follow us directly.
Here is an excerpt from our conversation:
Robinson Meyer: Next question — you have to pick one, and then you’ll get a free response section. Do you think AI and data centers energy needs are significantly slowing down decarbonization, yes or no?
Jesse Jenkins: Significantly. Yeah, I guess significantly would … yes, I think so. I think in general, the challenge we have with decarbonization is we have to add new, clean supplies of energy faster than demand growth. And so, in order to make progress on existing emissions, you have to exceed the demand growth, meet all of that growth with clean resources, and then start to drive down emissions.
If you look at what we’ve talked about — are China’s emissions peaking, or global emissions peaking? I mean, that really is a game. It’s a race between how fast we can add clean supply and how fast demand for energy’s growing. And so in the power sector in particular, an area where we’ve made the most progress in recent years in cutting emissions, now having a large, and rapid growth in electricity demand for a whole new sector of the economy — and one that doesn’t directly contribute to decarbonization, like, say, in contrast to electric vehicles or electrifying heating —certainly makes things harder. It just makes that you have to run that race even faster.
I would say in the U.S. context in particular, in a combination of the Trump policy environment, we are not keeping pace, right? We are not going to be able to both meet the large demand growth and eat into the substantial remaining emissions that we have from coal and gas in our power sector. And in particular, I think we’re going to see a lot more coal generation over the next decade than we would’ve otherwise without both AI and without the repeal of the Biden-era EPA regulations, which were going to really drive the entire coal fleet into a moment of truth, right? Are they gonna retrofit for carbon capture? Are they going to retire? Was basically their option, by 2035.
And so without that, we still have on the order of 150 gigawatts of coal-fired power plants in the United States, and many of those were on the way out, and I think they’re getting a second lease on life because of the fact that demand for energy and particularly capacity are growing so rapidly that a lot of them are now saying, Hey, you know what, we can actually make quite a bit of money if we stick around for another 5, 10, 15 years. So yeah, I’d say that’s significantly harder.
That isn’t an indictment to say we shouldn’t do AI. It’s happening. It’s valuable, and we need to meet as much, if not all of that growth with clean energy. But then we still have to try to go faster, and that’s the key.
Mentioned:
This year’s Heatmap Insiders Survey
Last year’s Heatmap Insiders Survey
The best PDF Jesse read this year: Flexible Data Centers: A Faster, More Affordable Path to Power
The best PDF Rob read this year: George Marshall’s Guide to Merleau-Ponty's Phenomenology of Perception
This episode of Shift Key is sponsored by …
Heatmap Pro brings all of our research, reporting, and insights down to the local level. The software platform tracks all local opposition to clean energy and data centers, forecasts community sentiment, and guides data-driven engagement campaigns. Book a demo today to see the premier intelligence platform for project permitting and community engagement.
Music for Shift Key is by Adam Kromelow.
They still want to decarbonize, but they’re over the jargon.
Where does the fight to decarbonize the global economy go from here? The past 12 months, after all, have been bleak. Donald Trump has pulled the United States out of the Paris Agreement (again) and is trying to leave a precursor United Nations climate treaty, as well. He ripped out half the Inflation Reduction Act, sidetracked the Environmental Protection Administration, and rechristened the Energy Department’s in-house bank in the name of “energy dominance.” Even nonpartisan weather research — like that conducted by the National Center for Atmospheric Research — is getting shut down by Trump’s ideologues. And in the days before we went to press, Trump invaded Venezuela with the explicit goal (he claims) of taking its oil.
Abroad, the picture hardly seems rosier. China’s new climate pledge struck many observers as underwhelming. Mark Carney, who once led the effort to decarbonize global finance, won Canada’s premiership after promising to lift parts of that country’s carbon tax — then struck a “grand bargain” with fossiliferous Alberta. Even Europe seems to dither between its climate goals, its economic security, and the need for faster growth.
Now would be a good time, we thought, for an industry-wide check-in. So we called up 55 of the most discerning and often disputatious voices in climate and clean energy — the scientists, researchers, innovators, and reformers who are already shaping our climate future. Some of them led the Biden administration’s climate policy from within the White House; others are harsh or heterodox critics of mainstream environmentalism. And a few more are on the front lines right now, tasked with responding to Trump’s policies from the halls of Congress — or the ivory minarets of academia.
We asked them all the same questions, including: Which key decarbonization technology is not ready for primetime? Who in the Trump administration has been the worst for decarbonization? And how hot is the planet set to get in 2100, really? (Among other queries.) Their answers — as summarized and tabulated by my colleagues — are available in these pages.
You can see whether insiders think data centers are slowing down decarbonization and what folks have learned (or, at least, say they’ve learned) from the repeal of clean energy tax credits in the Inflation Reduction Act.
But from many different respondents, a mood emerged: a kind of exhaustion with “climate” as the right frame through which to understand the fractious mixture of electrification, pollution reduction, clean energy development, and other goals that people who care about climate change actually pursue. When we asked what piece of climate jargon people would most like to ban, we expected most answers to dwell on the various colors of hydrogen (green, blue, orange, chartreuse), perhaps, or the alphabet soup of acronyms around carbon removal (CDR, DAC, CCS, CCUS, MRV). Instead, we got:
“‘Climate.’ Literally the word climate, I would just get rid of it completely,” one venture capitalist told us. “I would love to see people not use 'climate change' as a predominant way to talk to people about a global challenge like this,” seconded a former Washington official. “And who knows what a ‘greenhouse gas emission’ is in the real world?” A lobbyist agreed: “Climate change, unfortunately, has become too politicized … I’d rather talk about decarbonization than climate change.”
Not everyone was as willing to shift to decarbonization, but most welcomed some form of specificity. “I’ve always tried to reframe climate change to be more personal and to recognize it is literally the biggest health challenge of our lives,” the former official said. The VC said we should “get back to the basics of, are you in the energy business? Are you in the agriculture business? Are you in transportation, logistics, manufacturing?”
“You're in a business,” they added, “there is no climate business.”
Not everyone hated “climate” quite as much — but others mentioned a phrase including the word. One think tanker wanted to nix “climate emergency.” Another scholar said: “I think the ‘climate justice’ term — not the idea — but I think the term got spread so widely that it became kind of difficult to understand what it was even referring to.” And one climate scientist didn’t have a problem with climate change, per se, but did say that people should pare back how they discuss it and back off “the notion that climate change will result in human extinction, or the sudden and imminent end to human civilization.”
There were other points of agreement. Four people wanted to ban “net zero” or “carbon neutrality.” One scientist said activists should back off fossil gas — “I know we’re always trying to try convince people of something, but, like, the entire world calls it ’natural gas’” — and another scientist said that they wished people would stop “micromanaging” language: “People continually changing jargon to try and find the magic words that make something different than it is — that annoys me.”
Two more academics added they wish to banish discussion of “overshoot”: “It’s not clear if it's referring to temperatures or emissions — I just don't think it's a helpful frame for thinking about the problem.”
“Unit economics,” “greenwashing,” and — yes — the whole spectrum of hydrogen colors came in for a lashing. But perhaps the most distinctive ban suggestion came from Todd Stern, the former chief U.S. climate diplomat, who negotiated the Kyoto Protocol and the Paris Agreement.
“I hate it when people say ’are you going to COP?’” he told me, referring to the United Nations’ annual climate summit, officially known as the Conference of the Parties. His issue wasn’t calling it “COP,” he clarified. It was dropping the definite article.
“The way I see it, no one has the right to suddenly become such intimate pals with ‘COP.’ You go to the ball game or the conference or what have you. And you go to ‘the COP,’” he said. “I am clearly losing this battle, but no one will ever hear me drop the ‘the.’”
Now, since I talked to Stern, the United States has moved to drop the COP entirely — with or without the “the” — because Trump took us out of the climate treaty under whose aegis the COP is held. But precision still counts, even in unfriendly times. And throughout the rest of this package, you’ll find insiders trying to find a path forward in thoughtful, insightful, and precise ways.
You’ll also find them remaining surprisingly upbeat — and even more optimistic, in some ways, than they were last year. Twelve months ago, 30% of our insider panel thought China would peak its emissions in the 2020s; this year, a plurality said the peak would come this decade. Roughly the same share of respondents this year as last year thought the U.S. would hit net zero in the 2060s. Trump might be setting back American climate action in the near term. But some of the most important long-term trends remain unchanged.
OUR PANEL INCLUDED… Gavin Schmidt, director of the NASA Goddard Institute for Space Studies | Ken Caldeira, senior scientist emeritus at the Carnegie Institution for Science and visiting scholar at Stanford University | Kate Marvel, research physicist at the NASA Goddard Institute for Space Studies | Holly Jean Buck, associate professor of environment and sustainability at the University at Buffalo | Kim Cobb, climate scientist and director of the Institute at Brown for Environment and Society | Jennifer Wilcox, chemical engineering professor at the University of Pennsylvania and former U.S. Assistant Secretary for Fossil Energy and Carbon Management | Michael Greenstone, economist and director of the Energy Policy Institute at the University of Chicago | Solomon Hsiang, professor of global environmental policy at Stanford University | Chris Bataille, global fellow at Columbia University’s Center on Global Energy Policy | Danny Cullenward, senior fellow at the Kleinman Center for Energy Policy at the University of Pennsylvania | J. Mijin Cha, environmental studies professor at UC Santa Cruz and fellow at Cornell University’s Climate Jobs Institute | Lynne Kiesling, director of the Institute for Regulatory Law and Economics at Northwestern University | Daniel Swain, climate scientist at the University of California Agriculture and Natural Resources | Emily Grubert, sustainable energy policy professor at the University of Notre Dame | Jon Norman, president of Hydrostor | Chris Creed, managing partner at Galvanize Climate Solutions | Amy Heart, senior vice president of public policy at Sunrun | Kate Brandt, chief sustainability officer at Google | Sophie Purdom, managing partner at Planeteer Capital and co-founder of CTVC | Lara Pierpoint, managing director at Trellis Climate | Andrew Beebe, managing director at Obvious Ventures | Gabriel Kra, managing director and co-founder of Prelude Ventures | Joe Goodman, managing partner and co-founder of VoLo Earth Ventures | Erika Reinhardt, executive director and co-founder of Spark Climate Solutions | Dawn Lippert, founder and CEO of Elemental Impact and general partner at Earthshot Ventures | Rajesh Swaminathan, partner at Khosla Ventures | Rob Davies, CEO of Sublime Systems | John Arnold, philanthropist and co-founder of Arnold Ventures | Gabe Kleinman, operating partner at Emerson Collective | Amy Duffuor, co-founder and general partner at Azolla Ventures | Amy Francetic, managing general partner and founder of Buoyant Ventures | Tom Chi, founding partner at At One Ventures | Francis O’Sullivan, managing director at S2G Investments | Cooper Rinzler, partner at Breakthrough Energy Ventures | Gina McCarthy, former administrator of the U.S. Environmental Protection Agency | Neil Chatterjee, former commissioner of the Federal Energy Regulatory Commission | Representative Scott Peters, member of the U.S. House of Representatives | Todd Stern, former U.S. special envoy for climate change | Representative Sean Casten, member of the U.S. House of Representatives | Representative Mike Levin, member of the U.S. House of Representatives | Zeke Hausfather, climate research lead at Stripe and research scientist at Berkeley Earth | Shuchi Talati, founder and executive director of the Alliance for Just Deliberation on Solar Geoengineering | Nat Bullard, co-founder of Halcyon | Bill McKibben, environmentalist and founder of 350.org | Ilaria Mazzocco, senior fellow at the Center for Strategic and International Studies | Leah Stokes, professor of environmental politics at UC Santa Barbara | Noah Kaufman, senior research scholar at Columbia University’s Center on Global Energy Policy | Arvind Ravikumar, energy systems professor at the University of Texas at Austin | Jessica Green, political scientist at the University of Toronto | Jonas Nahm, energy policy professor at Johns Hopkins SAIS | Armond Cohen, executive director of the Clean Air Task Force | Costa Samaras, director of the Scott Institute for Energy Innovation at Carnegie Mellon University | John Larsen, partner at Rhodium Group | Alex Trembath, executive director of the Breakthrough Institute | Alex Flint, executive director of the Alliance for Market Solutions
The Heatmap Insiders Survey of 55 invited expert respondents was conducted by Heatmap News reporters during November and December 2025. Responses were collected via phone interviews. All participants were given the opportunity to record responses anonymously. Not all respondents answered all questions.
Plus, which is the best hyperscaler on climate — and which is the worst?
The biggest story in energy right now is data centers.
After decades of slow load growth, forecasters are almost competing with each other to predict the most eye-popping figure for how much new electricity demand data centers will add to the grid. And with the existing electricity system with its backbone of natural gas, more data centers could mean higher emissions.
Hyperscalers with sustainability goals are already reporting higher emissions, and technology companies are telling investors that they plan to invest hundreds of billions, if not trillions of dollars, into new data centers, increasingly at gigawatt scale.
And yet when we asked our Heatmap survey participants “Do you think AI and data centers’ energy needs are significantly slowing down decarbonization?” only about 34% said they would, compared to 66% who said they wouldn’t.
There were some intriguing differences between different types of respondents. Among our “innovator” respondents — venture capitalists, founders, and executives working at climate tech startups — the overwhelming majority said that AI and data centers are not slowing down decarbonization. “I think it’s the inverse — I think we want to launch the next generation of technologies when there’s demand growth and opportunity to sell into a slightly higher priced, non-commoditized market,” Joe Goodman co-founder and managing partner at VoLo Earth Ventures, told us.
Not everyone in Silicon Valley is so optimistic, however. “I think in a different political environment, it may have been a true accelerant,” one VC told us. “But in this political environment, it’s a true albatross because it’s creating so many more emissions. It’s creating so much stress on the grid. We’re not deploying the kinds of solutions that would be effective."
Scientists were least in agreement on the question. While only 47% of scientists thought the growth of data centers would significantly slow down decarbonization, most of the pessimistic camp was in the social sciences. In total, over 62% of the physical scientists we surveyed thought data centers weren’t slowing down decarbonization, compared to a third of social scientists.
Michael Greenstone, a University of Chicago economist, told us he didn’t see data centers and artificial intelligence as any different from any other use of energy. “I also think air conditioning and lighting, computing, and 57,000 other uses of electricity are slowing down decarbonization,” he said. The real answer is the world is not trying to minimize climate change.”
Mijin Cha, an assistant professor of environment studies at the University of California Santa Cruz, was even more gloomy, telling us, “Not only do I think it’s slowing down decarbonization, I think it is permanently extending the life of fossil fuels, especially as it is now unmitigated growth.”
Some took issue with the premise of the question, expressing skepticism of the entire AI industry. “I’m actually of the opinion that most of the AI and data center plans are a massive bubble,” a scientist told us. “And so, are there plans that would be disruptive to emissions? Yes. Are they actually doing anything to emissions yet? Not obvious.”
We also asked respondents to name the “best” and “worst” hyperscalers, large technology companies pursuing the data center buildout. Many of these companies have some kind of renewables or sustainability goal, but there are meaningful differences among them. Google and Microsoft look to match their emissions with non-carbon-power generation in the same geographic area and at the same time. The approach used by Meta and Amazon, on the other hand, is to develop renewable projects that have the biggest “bang for the buck” on global emissions by siting them in areas with high emissions that the renewable generation can be said to displace.
Among our respondents, the 24/7 “time and place” approach is the clear winner.
Google was the “best” pick for 19 respondents, including six who said “Google and Microsoft.” By contrast, Amazon and Meta had just three votes combined.
As for the “worst,” there was no clear consensus, although two respondents from the social sciences picked “everyone besides Microsoft and Google” and “everyone but Google and Microsoft.” Another one told us, “The best is a tie between Microsoft and Google. Everyone else is in the bottom category.”
A third social scientist summed it up even more pungently. “Google is the best, Meta is the worst. Evil corporation” — though with more expletives than that.
The Heatmap Insiders Survey of 55 invited expert respondents was conducted by Heatmap News reporters during November and December 2025. Responses were collected via phone interviews. All participants were given the opportunity to record responses anonymously. Not all respondents answered all questions.