You’re out of free articles.
Log in
To continue reading, log in to your account.
Create a Free Account
To unlock more free articles, please create a free account.
Sign In or Create an Account.
By continuing, you agree to the Terms of Service and acknowledge our Privacy Policy
Welcome to Heatmap
Thank you for registering with Heatmap. Climate change is one of the greatest challenges of our lives, a force reshaping our economy, our politics, and our culture. We hope to be your trusted, friendly, and insightful guide to that transformation. Please enjoy your free articles. You can check your profile here .
subscribe to get Unlimited access
Offer for a Heatmap News Unlimited Access subscription; please note that your subscription will renew automatically unless you cancel prior to renewal. Cancellation takes effect at the end of your current billing period. We will let you know in advance of any price changes. Taxes may apply. Offer terms are subject to change.
Subscribe to get unlimited Access
Hey, you are out of free articles but you are only a few clicks away from full access. Subscribe below and take advantage of our introductory offer.
subscribe to get Unlimited access
Offer for a Heatmap News Unlimited Access subscription; please note that your subscription will renew automatically unless you cancel prior to renewal. Cancellation takes effect at the end of your current billing period. We will let you know in advance of any price changes. Taxes may apply. Offer terms are subject to change.
Create Your Account
Please Enter Your Password
Forgot your password?
Please enter the email address you use for your account so we can send you a link to reset your password:

In the labyrinthine organizational chart of the U.S. government, the National Oceanic and Atmospheric Administration sits conspicuously within the portfolio of the Department of Commerce. Ocean research and weather monitoring have clear economic stakes, of course, but the responsibilities of the science-oriented agency — targeted for dismantling by the Trump administration for allegedly instigating “climate change alarm” — often seem better suited to the Department of the Interior, or perhaps nestled within the Environmental Protection Agency.
That is, until you start talking about the fisheries.
The United States is the world’s sixth-largest producer of wild-caught seafood, with the fishing industry supporting at least 2.3 million domestic jobs and generating around $321 billion in annual sales. After the National Weather Service, NOAA’s Marine Fisheries Service is the agency’s biggest arm, employing around 4,200 of the roughly 13,000 people who worked at NOAA before Elon Musk’s efficiency layoffs. The NMFS (as it’s known in the acronym-heavy parlance of NOAA) is tasked with managing, conserving, and protecting the nation’s fishing resources and the billions of pounds of domestic seafood harvested annually, along with state departments of natural resources and the Food and Drug Administration.
But like every other line office at NOAA, NMFS now faces cuts of up to 20% of its payroll, which could reduce its services and pass on unpleasant repercussions to seafood-loving Americans. At NOAA Fisheries’ offices in Narragansett, Rhode Island, and Woods Hole, Massachusetts — the latter being the oldest marine research station in the country — at least 20 staff members have already been laid off, The New Bedford Light reports. Though Commerce Secretary Howard Lutnick claimed in his confirmation hearing that it was not his intent to “dismantle” the agency, people all over the climate science and forecasting communities fear that the cuts are effectively doing exactly that. (NOAA declined to comment for this story, citing long-standing practice against discussing internal personnel and management matters.)
“These actions are not the strategic moves of a government looking out for its populace,” Rick Spinrad, the NOAA administrator under President Joe Biden, said in a recent press call hosted by Washington Senator Patty Murray. “They are the unnecessary and malicious acts of a shambolic administration.”
Not all fisherpeople necessarily welcome NOAA into their lives, however. Many fishing communities around the U.S. have long felt neglected by the government, since wild-caught seafood isn’t eligible for traditional farming grants from the Department of Agriculture and it doesn’t qualify for the economic assistance directed toward domestic aquaculture, either. The problem is particularly acute in the case of shrimp, Americans’ favorite seafood, which is eaten by nearly half of the households in the country. Wild-caught shrimp is often more sustainable than domestically farmed shrimp, the latter of which is almost nonexistent, making up less than 1% of what’s on the market in the U.S. But American shrimpers face intense market pressures from the glut of farmed and often illegal foreign imports that make up 90% of the shrimp for sale in stores and restaurants, with little obvious intervention from federal monitors at NOAA or the FDA.
“We’re like, ‘Yeah, kick them all out, burn it down, start fresh,’” Bryan Jones, the vice president of the South Carolina Shrimpers Association and a director of the United States Shrimpers Coalition, told me of he and his colleagues’ frustration with the agency’s priorities. “The entire seafood industry would like to see a mindset shift. What is the purpose of NOAA? Why do they exist?”
Though NMFS performs many functions, perhaps its most important is managing and conserving the nation’s fisheries, the geographic regions where particular stocks of fish are harvested commercially (for example, the Alaska pollock fishery is the nation’s largest commercial fishery, valued at $483.5 million). The agency hires observers to record what’s caught and discarded aboard commercial fishing boats. That data is then used to set quotas on how much of the given population can be harvested in a season, determined in collaboration with private industry partners at the nation’s eight regional fishery management councils. NOAA also prescribes mandatory precautions, such as the use of “turtle excluder devices” in cases where bycatch is a concern, like shrimping.
Though Jones spoke highly of all the individuals he collaborates with at NOAA, the behemoth agency can also move at what feels like a glacial pace. In 2018, for example, a winter freeze decimated the white shrimp stock in Charleston harbor, triggering $1 million in federal disaster relief for the affected shrimpers. But almost seven years later, much of that emergency money still hasn’t been distributed by NOAA. And even that amount was still far short of the $2 million in requests made by the Lowcountry shrimpers.
But there are also stark counterexamples of what can happen to fisheries when the data collected by NOAA falters or degrades, as is likely to happen if the layoffs continue apace. In 2020, the COVID-19 pandemic suspended NOAA’s annual Bering Sea bottom trawl survey, leading to gaps in the data about the snow crab population. Then, in 2021, following a marine heat wave, the snow crab fishery collapsed, meaning its population saw a decline of more than 90% and was too small to sustain a harvest. “Consequently, we don’t have a good idea of what [the snow crab] population looked like the year prior, in 2020, and we need that type of data to know how many fish and crabs we can catch each year, where the populations are going as the oceans change, and to keep track of environmental trends,” Rebecca Howard, a former research fish biologist at the Alaska Fisheries Science Center in Seattle who NOAA laid off, said on the virtual press call with Spinrad and Murray.
For much of the 1980s and 1990s, U.S. fisheries were not in a good state; overfishing caused the populations of many of the country’s most iconic fish stocks, including flounder and cod, to collapse. Stricter limits on overfished stocks have allowed populations to recover in recent years. Today, the U.S. can boast of having “the best-managed fisheries in the world,” Sally Yozell, the former Deputy Assistant Secretary for Oceans at NOAA, told me. “And there was a lot of pain that went into getting to that point,” she said. “It took a lot of science and a lot of pain by the fishermen,” who weren’t allowed to harvest certain species during the recovery efforts. Today, the agency is involved in managing more than 400 fish stocks.
But Yozell also pointed out that it is the balance between commerce and science that is crucial. “It’s not fair to say to a fisherman, ‘Okay, you go and guard your own hen house,’” she added. “I mean, they’ll fish as much as they can — and why not? It’s in their nature. That’s why we have openings and closings [of fisheries] that are science-based,” intended to prevent overfishing or population collapse.
If the quality of NOAA’s fishery management data suffers as it hemorrhages staff, the regional fishery management councils will likely err on the side of caution rather than risk a fishery collapse, which, if severe enough, could result in localized extinctions. “That could mean scaling back the amount of fish that could be harvested to take a more precautionary approach,” Sarah Poon, the associate vice president of Resilient Fishery Solutions at the Environmental Defense Fund, told me. Sure enough, fishermen have already overfished Atlantic bluefin tuna off North Carolina this year because NOAA failed to close the fishery after the quota was reached — an uncharacteristic oversight that was apparently due to the agency’s layoffs, Reuters reports, and that will likely result in more conservative management of fisheries down the line.
The New England Fishery Management Council is already warning that the continued freeze at NOAA could delay the traditional May 1 opening of its groundfish fishery, and the valuable New England scallop fishery might also see delays as NOAA struggles to issue its standard regulations. Spinrad, the former NOAA administrator, has warned that the layoffs could potentially disrupt the $320 billion annual salmon hatcheries in the Pacific Northwest if commercial fishing closures or delays continue to occur.
Despite his frustrations with the bureaucracy of NOAA, the South Carolina shrimper, Jones, said that fishing communities would be the first to acknowledge the importance of good data, science, common-sense regulations, and stock management. “We’re all environmentalists at the end of the day,” he said, pointing out that fishermen wouldn’t have jobs if pollution or overfishing endangered the shrimp population.
But while many at NOAA now fear for their livelihoods, the stakes for small fishing communities have long felt existential. “It’s not hyperbole to say we’re at a precipice,” Jones went on. “There’s a chance that we may not be around in a couple of years — it’s that bad.” Sales of South Carolina seafood have nearly halved since the early 2010s, and the number of shrimp boats on the water in Georgetown County, the “seafood capital” of the state, has done the same.
But if wild-caught shrimp vanish from the markets, it could mean an even heavier reliance on farmed imports. Foreign aquaculture, however, is rife with forced labor and human rights violations, rampant environmental pollution and habitat destruction, and serious contamination concerns. Other seafood sectors, like white fish, are contending with adversaries such as Russia mixing in foreign-caught fish with domestic fish during processing and labeling it American wild-caught, or with outright mislabeling — though it again falls on NOAA’s potentially compromised enforcement capabilities to verify that U.S. seafood is actually wild-caught in the U.S.
EDF’s Poon told me it’s the most volatile fisheries that are ultimately most reliant on NOAA’s data, a category she believes shrimp falls into given warming-related environmental pressures and harmful algal blooms. While she agreed that NOAA Fisheries could use some “fine-tuning and refinement,” Poon added that turmoil at the agency is “already upending some of these decision-making processes that we have,” for the worse.
And while the NOAA layoffs might be cathartic for some in the fishing industry, there is also no clear indication that a regime change in Washington will mean the reversal of fortunes for fishermen. “It’s like we’re viewed as something to be managed out of existence; that’s the perception we’ve had and the way we felt,” Jones said. “I see a lot of great scientists and folks that work on the ground with us and are very helpful, but from an agency standpoint — yes, that’s how we felt.”
But “I mean, we’ve never gotten a call from Howard Lutnick, either,” he said.
Log in
To continue reading, log in to your account.
Create a Free Account
To unlock more free articles, please create a free account.
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.