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Patrick Brown claims to have “left out the full truth” in order to get published. But his full story is much more perplexing.

Patrick Brown is a climate scientist at the Breakthrough Institute, a heterodox think tank based in California that advocates for using technology and economic growth to manage climate change. He holds a Ph.D. from Duke University in Earth and ocean science.
Last week, Brown and a team of co-authors published a paper in Nature that found climate change has made it more likely that California wildfires will experience a particularly dangerous kind of event: a moment of rapid, explosive growth. Thanks to climate change, these dangerous events are now 25% more likely to occur, the paper found.
On Tuesday, Brown published a lengthy Twitter thread about his wildfire paper, as well as an article in The Free Press, an online publication founded by the former New York Times columnist Bari Weiss. Now Brown told a different story about his research — a far more negative one. His new paper revealed fundamental problems with climate science, he said, because it looked at climate change alone and not at the role that other factors, such as vegetation change, arson, or forest management tactics, might play in driving wildfire growth.
“I knew not to try to quantify key aspects other than climate change in my research because it would dilute the story that prestigious journals like Nature and its rival, Science, want to tell,” he wrote. “I sacrificed contributing the most valuable knowledge for society in order for the research to be compatible with the confirmation bias of the editors and reviewers of the journals I was targeting.”
These incentives revealed that climate science is now more interested in serving as a “Cassandra” than revealing new information about the world — a tendency, he charged, that can “actually mislead the public.”
Brown’s argument attracted my attention, because I have written about how nuanced and complicated climate science can sometimes be. When President Joe Biden linked the Quebec wildfires to climate change, I expressed doubts about the connection. When Hurricane Ian made landfall in Florida last year, I wrote that hurricanes have a far more complicated relationship with global warming than many believe. And in 2019, I broke the news that a respected team of climate scientists had ruled out some of the worst-case scenarios for rapid sea-level rise this century. I am not, in other words, someone who sees climate change in every shadow.
On Wednesday, I called Brown to talk about his claims, the Nature publication process, and the state of climate science as a field. Our conversation follows below. But I left the interview unsure of why Brown had made such a fuss.
Brown argues that climate science suffers from a serious misallocation of incentives. He says that his paper should have looked at the influence of many factors — such as arson or forest management — in driving rapid wildfire growth. Yet it didn’t. Even though he says these factors can be “just as or more important” than climate change, he declined to study them because the professional incentives pointed against it. Doing so would have detracted from his paper’s “clean narrative” focused on climate catastrophism and made his paper less likely to “pass muster with Nature’s editors and reviewers.”
But after talking to him and reading his paper, a different story emerged. When Brown began his research, he did not actually know that, say, arson or forest management were as important as climate change in driving wildfire growth. What he did know is that it would be complicated — and labor-intensive — to pull out every factor that might influence a wildfire’s growth. So he chose to focus his first paper on what was likely to be the biggest signal: climate change.
During the peer-review process, Nature’s reviewers asked him why he made this choice. It would have been “very difficult” to study those other variables, such as forest management, he replied. “This is precisely why we chose to use a methodology that addresses the much cleaner but more narrow question of what the influence of warming alone is on the risk of extreme daily wildfire growth,” he wrote, adding that he hoped to look at other factors in future research.
Nature’s editors and reviewers accepted this argument in good faith. And Brown did, in fact, begin studying the role of those other factors on wildfires. He claims that newer, unpublished work shows that active forest management can negate some impacts of climate change on wildfire in California, although this finding has yet to be peer reviewed.
When the Nature paper came out last week, Brown was admirably upfront about its limitations. The paper itself cautions that its findings should be interpreted only “narrowly”; Brown stressed on Twitter and in interviews that even though climate change is making wildfires worse, near-term greenhouse-gas reductions will do little to cut that risk. And journalists listened to him. NPR and the Los Angeles Times devoted multiple paragraphs of their stories to that insight and to the importance of forest management.
So I’m left asking: What’s the problem here? Brown had a knotty research problem, and he chose to divvy it up into smaller parts and focus on the easiest part first. He triaged, in other words. When peer reviewers — whom he now claims accepted his paper due only to their “confirmation bias” — pushed back on his decision, he argued against them and said that he would look at other variables later. He kept that promise; he is studying those variables now. When his paper was published, he publicized its findings fairly and accurately. The media covered them with nuance. Where’s the scandal, again? What are we supposed to be mad about here?
Brown seems to have talked himself into the view that he did something wrong, but it’s not clear to me that he actually did. Shorn of his personal example, his Free Press article amounts to a series of gripes about other high-impact climate papers. He criticizes an article that calculated how carbon emissions could hit GDP, but his concerns, while reasonable enough, are hardly an indictment of the field. He complains that journal editors look for “eye-popping” statistics when reviewing papers, but this is hardly a vice unique to climate science. None of what he describes — least of all his own behavior — amounts to an effort to “distort research” or “mislead the public” that he has seemingly alleged.
His critique has found its audience anyway. Since we talked, Brown’s argument has been cited by Fox News, The New York Post, and The Telegraph. “Climate scientist admits editing paper to fit ‘preapproved narratives,’” reads a typical headline. (Brown denies distorting or lying about his results.) The editor-in-chief of Nature, meanwhile, has rebuked Brown and said that the journal is “carefully considering the implications of his stated actions.” During our conversation, Brown lamented that only articles warning of climate change’s dangers ever appear in the media. Now he is receiving a wholly different type of coverage.
Our conversation has been edited for concision and clarity.
I wonder if you could catch me up on what’s happened in the past few days and on the criticism, or the meta-criticism, of the paper that you just published.
If you look at my tweet thread or the press release on the paper, I went out of my way to emphasize the points that I end up critiquing the paper for. I emphasize that in our current phase of research, we’re finding that hazardous fuel reduction treatments might be able to completely overwhelm the impact of climate change on fire.
My argument is that I would very much defend the research overall, but I’m making this commentary on framing it for the journal. What I did when writing with paper, when my goal was to get it in Science or Nature, is very, very common. It’s pervasive. It’s just turning the dials in all these specific ways that end up skewing the public view of the overall situation that we’re in. As a climate researcher, if you want this high-end paper, if you want this paper that’s going to make a splash and help you in your career, your goal is to cut through everything else and use a bunch of sophisticated statistics to find the climate change signal in there.
There’s nothing explicitly wrong with this paper; it’s just what ends up getting communicated at the end of the day. So in this case, you hold everything constant, you only look at this temperature impact, so you’re controlling for other factors — like changes in human ignition patterns or changes in characteristics from fire suppression. Those caveats are mentioned in the paper, so I’m not saying that they’re hidden. But you focus exclusively on climate change and you ignore these other factors that might be important. There’s a firehose of papers like this, but they end up giving a totally overemphasized impression of the climate change impact.
Climate change is this nuanced thing, and it shows up in different ways in the world, and what we know about it is quite nuanced. I think that can absolutely get lost in the loudest parts of the discourse.
I struggle with it. People are coming from such different baselines, where I think some people are of the mindset that we don’t even know if the climate is changing, or we have no idea if humans are contributing to it or something like that. And, obviously, that is completely against what all of the empirical evidence and science shows. For those people, I’d love to convince them of the importance of climate change and the dominant role that humans play in it.
But then there’s this other group of people that I think is misled by social media or certain media outlets, that are under a very misinformed impression about how large changes in weather and impacts on people are at least historically or up to this point. That starts with the journal articles themselves, and I perceived there to be strong incentives to really just focus exclusively on the climate change impact and to play it up more than it deserves to be played out.
I want to talk about that by focusing on this paper. It seems there are these other factors that shape wildfires. You mentioned just now changing ignition patterns, changes in fire suppression, changes in vegetation. I think the way that you just described them is that they “might” be important. The way you described them yesterday is that they’re “just as or more important.”
My first question is: Do we know that? I can imagine that they might be important. But have you done the research to know they’re just as important?
So the paper in Nature was submitted in July 2022, and since I submitted this, I moved on to that question. And we don’t have a manuscript yet, but what we're seeing using the same methodology is that fuel loads just have an enormous impact on fire danger. It’s a struggle to figure out how to model mechanical thinning and prescribed burning, but the results indicate that doing that at least locally can totally overwhelm or negate the climate change impact.
That will be a new paper, but that’s not some new result. If you look at disciplinary journals — it’s not in PNAS or Nature for the most part — that is kind of a consensus, that the fuel component of this is very large. It’s not unreasonable at all to think that a hazardous fuel reduction could overwhelm the impact of climate change.
So, do we know that for sure? No, but that’s one of the points I’m making — researchers aren’t incentivized to write that paper as much as I think that they should be. That’s a paper that's like, We’re going to do the very best we can varying different scenarios of ignition, or how we think ignition patterns have changed historically, or varying different scenarios of fuel buildup based on suppression policies and climate change. And we’re going to do this in a super rigorous, fair way, and we could rank these things or just see the relative influence of those factors. That has a much lower return on investment from the perspective of a researcher. It’s way more work, it’s way harder, and whatever the results, it will be much more equivocal. It’s going to be this super long paper, and it’s going to get bogged down in review.
I want that to be the gold standard. But what I see becoming the gold standard are these papers that are mimicked off of Science and Nature. You have a limit of about 2,000 words and three figures, and it incentivizes you to make this case. You have all of this data that’s messy, and your goal is to find the story and to tell the story with beautiful figures. Inevitably, doing it that way, you have to relegate things that go against your story to the supplements and explain them away. That’s the way that scientific publishing works, at least for these letter-type papers in Science or Nature.
There are two threads here, but I want to stay focused on the smaller one first. I think the way you put it in your thread was that to focus on other factors would “muddy the waters of a clean story” or would decrease the odds that this gets approved by Nature’s editors or reviewers.
Yeah.
But at the time you submitted the study, did we have methods to pull out the vegetation signal? Or the ignition signal?
What I’m doing now is the same idea as trying to pull out the temperature signal. You’re using the variation in space and time to get at the incremental influence of fuels on fire danger. But historically you would’ve had to come up with an estimate of what suppression policies had done to those fuels.
Got it. But at the time you submitted the paper, the work hadn’t been done.
Right. And I would love to have it be the case where as a researcher you could afford essentially to submit a paper and then be like, actually this other [method] is better or something, and then take your paper back. But that is insane, but you would never do that as a researcher. You need publications, and you want to build off the previous one.
I’m asking because there’s a throughline in some of what you’ve written that basically alleges that this kind of science is simply not something that Nature and these high-level scientific institutions are looking for. You wrote, “I sacrificed contributing the most valuable knowledge for society in order for the research to be compatible with the confirmation bias of the editors and reviewers of the journals I was targeting.”
I’m struggling to square that with the fact that the Nature reviewers, who are the people you accused of confirmation bias, directly ask you for this analysis in the peer review. One of them flags that there’s “numerous factors that play a confounding role in wildfire growth that are not directly accounted for, including vegetation, fire management, and ignition.” And another cautions against publishing the study because of methodological problems.
And during peer review, you responded to them, “We agree that climatic variables other than temperature are important for projecting change” — then you name all the factors we’ve been talking about — but “accounting for changes in all of these variables and their potential interactions simultaneously is very difficult. This is precisely why we chose to use a methodology that addresses the much cleaner but more narrow question of what the influence of warming alone is on the risk of extreme daily wildfire growth.”
It seems there’s this motte and bailey here. I understand that a researcher has limited time and they’re going to invest in the most methodologically clear stories. But you’re saying that you “molded” your work to fit the confirmation bias of Nature reviewers. Yet the Nature reviewers actually asked you to do the thing that you’ve identified as the biggest question mark in the article — and when they asked for that, you said it was too difficult. So which is it?
So I think that, that’s very good that the reviewers brought that up. But like I said before, doing that is, then, it’s not a Nature paper. It’s too diluted in my opinion to be a Nature paper.
This is what I’m trying to highlight, I guess, from the inside as a researcher doing this type of research. Reviewers absolutely will ask for good sensitivity tests, and bringing in caveats, and all that stuff, but it is absolutely your goal as the researcher to navigate the reviews as best you can. The file even gets automatically labeled Rebuttal when you respond to the reviewers. It’s your goal to essentially get the paper over the finish line.
And you don’t just acquiesce to reviewers, because you’d never get anything published. You don’t just say, Oh you’re right, okay, we will go back and do that work for five years and submit elsewhere. The reality of the situation is you have to go forward with your publication and get it published. They can ask for legitimate things, and you can kind of hand wave it away, and I don’t think that would work if you were not focused on the climate-change signal alone. If you were only focused on the fuel effect, I don’t think it would even go to review. They would be like, They didn’t consider climate change. That’s the thing we care most about.
I think it’s good that they’re now publishing reviewer comments and retorts, but that is common, absolutely conventional practice. You do what you think you have to do, and you don’t do what you think would take too long or bog it down or end up with a paper not being published.
There’s two different stories there, though. I mean, you write: “To put it bluntly, climate science has become less about understanding the complexities of the world and more about serving as a kind of Cassandra” and that this “distorts a great deal of climate science research. It misinforms the public and it makes practical solutions more difficult to achieve.”
The argument you make in your article is that this is due to confirmation bias and the desire for splash. And the argument you’re making now, which is different, is that the methods on the climate signal are much better developed. That it’s a much clearer thing. It’s what everyone cares the most about, for understandable reasons, and if you’re a researcher, it’s the lowest-hanging fruit, so it’s the easiest and most pressing thing to focus on. But that’s very different from this being about confirmation bias or a tendency toward catastrophism — it’s about researchers trying to make the most of the limited time that they have.
Yeah, I don’t think that they’re that different. I think that the methods are less developed for these other causal factors because of this climate obsession. We know the most about the climate signal, again, because the data sets and the infrastructure are all designed around the climate signal.
So it’s very easy for me to get estimates of the temperature change since the pre-industrial era, and we have all these models, and it’s all at my fingertips. It’s easier, it is the low hanging fruit. But you can imagine a world where in the fire science community, there are resources and databases estimating historical ignitions or other data, like, “this is our year-by-year estimate of fuel loads from 1850 to the present.” Then, that would be the low-hanging fruit. You would have potentially a totally different feeling for what comes out the other end, or what is reported in the media, if those data sets existed.
But the other side of that story is right here, which is that the peer reviewers ask you for that other stuff, and you say it’s too hard. You said it’s “very difficult.” And the other thing you said is that, “Our study shows that large-growth days are predictable using our predictors despite having no other information.” My interpretation is that this leaps out of the data even if everything else is moot.
The predictors include fuel characteristics. There’s nothing in the paper that does long-term manipulation of those, like the temperature or other variables. The models do know certain fuel characteristics, but those have gotten much more sophisticated in the current version of the models.
But back in 2019 or 2020, when you started the wildfire paper, you actually didn’t know about the role of ignitions or vegetation or forest management in driving wildfire growth. You would assume, as I would assume, that these are important factors, but you didn’t know about them. You chose to focus on climate first.
Yeah.
And then you were told to go back and look at the other ones, which you eventually did — that’s what you’re doing now. But at the time, you were like, that’s very hard, so we’re doing this one first. So my question here is: Isn’t this just science working, then? Is that really so scandalous? You picked the highest salience trendline first and then, having found that, went to go study other things.
You could say that that’s science working, but I think that what would happen is that when we start to dilute the climate change story, it’s not a Nature paper anymore. It's not a high-profile paper.
I’m not throwing all of science or all of climate science under the bus. I’m saying, the incentives are aligned to get this exclusive billing in these highest-profile papers and that skews the overall public impression of how large the climate signal is. So yeah, we could go publish another paper, but that wouldn’t have nearly the splash or penetration into the public as this one would have.
I am not sure that's true. I’m also not sure that it seems like nobody has done this vegetation work that you're doing. And when you publish that, it seems like it will be a very important methods paper — and methods papers get cited in some ways more than the high-impact stuff.
I don’t see a story, really, or a narrative getting into The New York Times about how — or especially the Guardian, or someplace like that — about how something other than climate change could be the dominant driver. Maybe I’m wrong, but that doesn’t seem like it would be nearly as likely as focusing on the climate change thing exclusively.
Again, I’m not sure that’s true, but I think that gives away the game a little, because if you’re a researcher trying to publish work that will be highly salient to the public, of course you’ll focus on climate change — the public already cares a lot about climate change. And the public is fundamentally right to care. I even think this whole process has sold your own paper short: If climate change is contributing to these rapid wildfire growth events, that’s a very important finding! Even if it’s not fixable in the near term with emissions reductions. Of course the public cares about it.
There’s a lot in your criticism that suggests certain kinds of analysis are “discouraged” or that certain kinds of questions would not have made this a Nature paper. And I understand you’re just trying to get past the review stage, but the process that was set up to edit Nature did tell you this, and you argued against it. So it’s a little duplicitous to turn around to the public and say, Well, I was only arguing against them because of the incentives.
I realize you have to publish. But when the peer reviewers told you to look at these other factors, you were like, “Oh, it’s very difficult, and climate change is so important that it’s worth pulling out this signal anyway.” And now to the public, your meta-interpretation of your own paper is like, “I wish I had been able to focus on this other stuff.”
But we got it through. Reviewers and editors could say, “No, this is ridiculous, you can’t focus exclusively on the climate change signal.” And they could do that with everything — with yields, with deaths, with fires, with floods, with GDP.
But what I’m saying is that from reading Nature, from reading Nature Climate Change, from reading Nature Communications, from reading Science, from reading Science Advances, I know as a researcher that this is not going to stop my paper. This is what everyone does. So when someone says, look at other factors — which is always what you get in reviews — you just learn to say, that’s not in the scope of this paper, but we can do it potentially in future work. You come up with a reason why you’re not going to do it in this paper, because you need that paper published so you can go on to the next one.
I hear that, but it does feel dishonest to turn around and interpret the paper to the public in this way. You’re not saying, in either the Twitter thread or Free Press article, that “Frankly it was very hard to pull out all these other factors, so we didn’t do it in this paper, but you should know that other factors matter.” What you’re saying is that the entire publication set-up is geared toward producing articles finding a catastrophic climate impact.
I understand you felt you had to just get past the reviews, but you can’t tell a high-impact journal that what they want is too hard, then turn around and tell the public, “Simply put, the incentives didn’t let me do this!”
Yeah, I understand what you’re saying, but what I would say is that there was no pathway for the reviewer to say, “Consider these other factors,” and then for us to do that, and for it to become a Nature paper. There’s no off-ramp there where you say, “Okay, good idea, we’ll go do that.” Your response has to convince the reviewer that you don’t need to do that. That would be a potential way to reform things — if you were able to hold papers in limbo. As a researcher needing publications, and wanting as many high-profile publications as you can, you have to argue with the reviewers and do whatever’s necessary to then get it over the finish line. My larger point is that it’s still the biases of the editors and reviewers that allowed the hand-waving response to get through.
But if you thought that they had made such a valid point that it torpedoed the paper, you could have pulled the paper. You did have options.
Yeah. I could have pulled the paper.
But that’s my point. I’m trying to improve science. And I’m saying, from the inside, that you don’t pull your paper, that’s crazy. You would never do that. Your incentives as a researcher are not aligned with the best knowledge generation for the public. You can say, okay, a more pure scientist would have done that, and shame on me for not pulling the paper, but I don’t think that’s fair, because I think 99.99% of people in my position … this is our job. To argue with reviewers and get papers over the finish line. Especially when nothing is actually wrong. Nothing is explicitly wrong here.
You’ve said that this “wouldn’t make it a Nature paper.” But there was a commentary in Nature Climate Change just yesterday that argued against the assumption that the future will be worse than the present and said that we shouldn’t paint an increasingly dire version of the future.
These articles don’t always get covered in the press, but is this a problem with science, or is it just a problem with the press?
Well, I think that there’s definitely a press issue, and that's a whole separate issue. But yeah, I’m highlighting what I think is a basic foundational science portion of the issue. And there are feedbacks between the two. I think 10 years ago, or 15 years ago, I don’t think there was this alliance between certain celebrity scientists and certain journalists, like — “You journalists will be the PR for my study that just came out, and I’ll shape my study to be the most salient for writing about.” I think that’s a natural tendency for highly motivated and ambitious people.
This question of an “alliance” is an interesting one. Because there’s a very understandable story about the incentives you’re describing. I think it’s good to point out that climate change is where we have the most developed methods, it’s what the public cares about the most, so it’s what you write about first when you start to take a crack on this wildfire problem. And if there are negative consequences that follow from those incentives, that’s quite understandable. But when you talk about an “alliance,” it suggests that there’s this malevolent or highly self-interested conspiracy —
I don’t think that. Just as an example, though, you are being an excellent journalist right now. You are really questioning me, and shaking me down, and questioning all sorts of things that I said. But I did a bunch of interviews on the Nature paper and I got nothing like that. No one ever asked challenging questions. They do this kind of, You are the scientist, you are the arbiter of truth-type thing.
So I notice a difference here — when I am in this role of warning about climate change, I am treated very differently than when I’m in this role of challenging that. And maybe you always do this with all the climate stuff that you cover, but I think that the people on the climate beat should not just be these megaphones for researchers, they should challenge them.
When those reporters were asking you questions, were you going out of your way to say, “Oh, fire management is really important. Actually, how we manage this is really important.”
Yes, I was, actually.
And did it make it into the stories?
Well, the vast majority of the stories I was not interviewed for. There was an NPR story and an LA Times story, and I think my quotes got in there. So that’s good.
That’s good to hear. I’ll be honest that when I saw your Free Press article yesterday, I was pretty taken aback. And it’s because I was looking forward to calling you as an expert during a big wildfire event. But when I call a researcher about a paper, I need them to be honest with me and tell me their full views about it. But if someone says A to me and to my readers, and then they turn around a few days later and say, In fact, I really believe B — I was only saying A because of the incentives, it gives me pause. Because why should I trust you?
I totally understand what you’re saying. Part of this is certainly a confession of personal fault, but in my tweet thread and in the press release, I made sure to emphasize everything I thought was important. If we had wanted it to go viral, I could have emphasized a [high emissions scenario] and made the title that climate change radically alters wildfire growth. But the title was about using artificial intelligence. And in all the interviews I did, I emphasized what I think is the most scientifically interesting part of this, which is that if you put climate change on different wildfires, you get different responses because forests are nearer or closer to these aridity thresholds. I feel no regrets whatsoever about the publicity I did for the paper.
I want to ask you about a few of the ways that Twitter and Free Press readers have interpreted the criticisms you’re making. One reader says you “inflated numbers” in order to get the article published. Did you do that?
No. That sounds like something totally different from what I’m talking about. That sounds like you go into a spreadsheet and change the numbers or something. I’m talking about a much more subtle thing, about emphasis.
Got it. There was a Free Press commenter who walked away from your story and said that you “distorted the facts and lied in order to succeed.” Do you think that’s a fair read?
No — “lied in order to succeed”? No. There’s nothing out of the ordinary or unconventional about this paper. I’m saying the conventions lead to an incomplete picture overall.
Do you understand why people walked away from the criticism you were making with those ideas?
I suppose if you just understand that people are reading things pretty quickly and lightly, but I don't think if you go word by word through my piece, you would see that.
Your piece does allege that the public’s being misled by the incentives here.
I think the overall picture being painted emphasizes climate more than it deserves.
Were your co-authors aware that you were going to use the paper in the way that you did?
I gave some of them a verbal heads up, but they did not see the piece, so this is, 100%, I own it. They are not involved and should not be accused of anything. I wrote the paper, I did the entire analysis, and this is my thing in terms of the opinion piece as well.
Is this really about climate change, or is this really about something that we know happens in every scientific discipline, which is that the most novel, eyebrow-raising papers get into high-impact journals and get the most press coverage? We don’t read about the bulk of the experiments that happen at the Large Hadron Collider, either.
It’s hard for me to judge completely about other fields since I’m not in them, but I would say that the splashiest papers in a non-politicized field are the ones that would go against conventional wisdom or the state of perceived knowledge in the field. I would say it’s the opposite in climate science. It’s all about emphasizing the climate-change signal or the climate-change impact. A lot of climate researchers feel like it’s essentially their job to raise alarm about climate change and emphasize the emissions reduction component.
But climate change is inherently politicized, right?
Yeah.
And the history is that climate scientists are not who politicized it. The reason it’s an especially touchy field is because there was a 15-year effort to emphasize every single error bar, every quibble, every well-founded scientific statement of doubt, to convince the public to doubt the climate-change hypothesis.
I take your point. I don’t know if it’s fair to say — I mean, are you saying that they could be politicized? Because I think it’s still politicized in general. There’s all these values that are taken onboard [by scientists]. There are traditional environmentalist values that impacting Earth is inherently bad, and so we should look for and highlight these bad things. That’s not explicitly, necessarily a partisan, political thing, but it’s an ideology that’s running in the background. It’s different from an ideology that says warming is this much, but it could be overwhelmed or offset by this technology.
I’m not someone who sees the fossil-fuel industry in every failed climate policy. But just as a matter of historical fact, from 1990 to at least 2005, there was a well-funded, highly organized effort to publicize every point of scientific caution to sow doubt about climate change. And yes, climate science was associated with environmentalism through the 1970s and ’80s, but had there not been an organized effort to play up every morsel of doubt in the literature, climate science wouldn’t have been politicized in the same way.
I’m not a historian of that. I take your point.
You’re describing a set of incentives that push researchers to look at climate change first. But if you go to a climate science conference, it’s really different, and you do in fact see ideas in climate science get rolled back over time. Like, in the 2000s, we thought climate change played a much larger role in hurricanes than we do now.
I think that’s a really important point, but I don’t think that that is at all what the public thinks or that’s communicated to the public. I guess if that’s an empirical question, you could do the polling on it, but it seems like, now, to me, it seems like every extreme weather event is covered through the lens of climate change.
Look at Canada’s explosive wildfire year. On the one hand, it’s so out of line with historical norms, it’s hard to see how there isn’t a climate change signal there — on the other hand, it’s so out of line that it’s hard to say what’s going on. So what do we want the public to do here? Because I don’t think every member of the public will be an expert on exactly how climate change drives extreme weather. So is the American public, writ large, sufficiently concerned about climate risks as I understand them? Probably not. Is 5% of the public too concerned? Maybe, yeah. But I also don’t know what’s going to happen in the future.
I’d have to look at the polls. I remember seeing that 42% of young people have some form of climate anxiety every day, which I think is filtered through social media reframing all extreme weather through the lens of climate change, bringing in a very apocalyptic view that I think is incongruent with the data. You think 5% is too concerned? I don’t know. You’d also have to bring in policies, and costs of policies, and the net overall costs and benefits of energy systems and agricultural systems and everything, and that’s just a much more difficult thing to get right.
But the leading candidate for one of the two parties also says climate change isn’t real. So my question would be, are there malicious actors and institutions here? Or is this just an extremely hard, very difficult thing to get right?
I do not think that there are malicious actors and institutions. I think it’s much more just the cultural milieu of institutions. The problems that I’m highlighting, I think there’s just a groupthink that develops, and people not wanting to rock the boat too much, and everyone kind of being on board knowing that, Well, the good side is to raise alarm about climate change and to reduce emissions, and the bad side is to do anything that would be in the other direction of that. And I think that you can make an argument for that, but I think that that ends up distorting actual scientific output.
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Though the tech giant did not say its purchasing pause is permanent, the change will have lasting ripple effects.
What does an industry do when it’s lost 80% of its annual demand?
The carbon removal business is trying to figure that out.
For the past few years, Microsoft has been the buyer of first and last resort for any company that sought to pull carbon dioxide from the atmosphere. In order to achieve an aggressive internal climate goal, the software company purchased more than 70 million metric tons of carbon removal credits, 40 times more than anyone else.
Now, it’s pulling back. Microsoft has informed suppliers and partners that it is pausing carbon removal buying, Heatmap reported last week. Bloomberg and Carbon Herald soon followed. The news has rippled through the nascent industry, convincing executives and investors that lean years may be on the way after a period of rapid growth.
“For a lot of these companies, their business model was, ‘And then Microsoft buys,’” said Julio Friedmann, the chief scientist at Carbon Direct, a company that advises and consults with companies — including, yes, Microsoft — on their carbon management projects, in an interview. “It changes their business model significantly if Microsoft does not buy.”
Microsoft told me this week that it has not ended the purchasing program. It still aims to become carbon negative by 2030, meaning that it must remove more climate pollution from the atmosphere than it produces in that year, according to its website. Its ultimate goal is to eliminate all 45 years of its historic carbon emissions from electricity use by 2050.
“At times, we may adjust the pace or volume of our carbon removal procurement as we continue to refine our approach toward sustainability goals,” Melanie Nakagawa, Microsoft’s chief sustainability officer, said in a statement. “Any adjustments we make are part of our disciplined approach — not a change in ambition.”
Yet even a partial pullback will alter the industry. Over the past five years, carbon removal companies have raised more than $3.6 billion, according to the independent data tracker CDR.fyi. Startups have invested that money into research and equipment, expecting that voluntary corporate buyers — and, eventually, governments — will pay to clean up carbon dioxide in the air.
Although many companies have implicitly promised to buy carbon removal credits — they’re all but implied in any commitment to “net zero” — nobody bought more than Microsoft. The software company purchased 45 million tons of carbon removal last year alone, according to its own data.
The next biggest buyer of carbon removal credits — Frontier, a coalition of large companies led by the payments processing firm Stripe — has bought 1.8 million tons total since launching in 2022.
With such an outsize footprint, Microsoft’s carbon removal team became the de facto regulator for the early industry — setting prices, analyzing projects, and publishing in-house standards for public consumption.
It bought from virtually every kind of carbon removal company, purchasing from large-scale, factory-style facilities that use industrial equipment to suck carbon from the air, as well as smaller and more natural solutions that rely on photosynthesis. One of its largest deals was with the city-owned utility for Stockholm, Sweden, which is building a facility to capture the carbon released when plant matter is burned for energy.
That it would some day stop buying shouldn’t be seen as a surprise, Hannah Bebbington, the head of deployment at the carbon-removal purchasing coalition Frontier, told me. “It will be inevitable for any corporate buyer in the space,” she said. “Corporate budgets are finite.”
Frontier’s members include Google, McKinsey, and Shopify. The coalition remains “open for business,” she said. “We are always open to new buyers joining Frontier.”
But Frontier — and, certainly, Microsoft — understands that the real point of voluntary purchasing programs is to prime the pump for government policy. That’s both because governments play a central role in spurring along new technologies — and because, when you get down to it, governments already handle disposal for a number of different kinds of waste, and carbon dioxide in the air is just another kind of waste. (On a per ton basis, carbon removal may already be price-competitive with municipal trash pickup.)
“The end game here is government support in the long-term period,” Bebbington said. “We will need a robust set of policies around the world that provide permanent demand for high-quality, durable CDR funds.”
“The voluntary market plays a critical role right now, but it won’t scale, and we don’t expect it will scale to the size of the problem,” she added.
Only a handful of companies had the size and scale to sell carbon credits to Microsoft, which tended to place orders in the millions of tons, Jack Andreasen Cavanaugh, a researcher at the Center on Global Energy Policy at Columbia University, told me on a recent episode of Heatmap’s podcast, Shift Key. Those companies will now be competing with fledgling firms for a market that’s 80% smaller than it used to be.
“Fundamentally, what it will mean is just an acceleration of something that was going to happen anyway, which is consolidation and bankruptcies or dissolutions,” Cavanaugh told me. “This was always going to happen at this moment because we don’t have supportive policy.”
Friedmann agreed with the dour outlook. “We will see the best companies and the best projects make it. But a lot of companies will fail, and a lot of projects will fail,” he told me.
To some degree, Microsoft planned for that eventuality in its purchase scheme. The company signed long-term offtake contracts with companies to “pay on delivery,” meaning that it will only pay once tons are actually shown to be durably dealt with. That arrangement will protect Microsoft’s shareholders if companies or technologies fail, but means that it could conceivably keep paying out carbon removal firms for the next 10 years, Noah Deich, a former Biden administration energy official, told me.
The pause, in other words, spells an end to new dealmaking, but it does not stop the flow of revenue to carbon removal companies that have already signed contracts with Microsoft. “The big question now is not who will the next buyer be in 2026,”’ Deich said. “It is who is actually going to deliver credits and do so at scale, at cost, and on time.”
Deich, who ran the Energy Department’s carbon management programs, added that Microsoft has been as important to building the carbon removal industry as Germany was to creating the modern solar industry. That country’s feed-in tariff, which started in 2000, is credited with driving so much demand for solar panels that it spurred a worldwide wave of factory construction and manufacturing innovation.
“The idea that a software company could single-handedly make the market for a climate technology makes about as much sense as the country of Germany — with the same annual solar insolation as Alaska — making the market for solar photovoltaic panels,” Deich said, referencing the comparatively low amount of sunlight that it receives. “But they did it. Climate policy seems to defy Occam’s razor a lot, and this is a great example of that.”
History also shows what could happen if the government fails to step up. In the 1980s, the U.S. government — which had up to that point been the world’s No. 1 developer of solar panel technology — ended its advance purchase program. Many American solar firms sold their patents and intellectual property to Japanese companies.
Those sales led to something of a lost decade for solar research worldwide and ultimately paved the way for East Asian manufacturing companies — first in Japan, and then in China — to dominate the solar trade, Deich said. If the U.S. government doesn’t step up soon, then the same thing could happen to carbon removal.
The climate math still relied upon by global governments to guide their national emissions targets assumes that carbon removal technology will exist and be able to scale rapidly in the future. The Intergovernmental Panel on Climate Change says that many outcomes where the world holds global temperatures to 1.5 or 2 degrees Celsius by the end of the century will involve some degree of “overshoot,” where carbon removal is used to remove excess carbon from the atmosphere.
By one estimate, the world will need to remove 7 billion to 9 billion tons of carbon from the atmosphere by the middle of the century in order to hold to Paris Agreement goals. You could argue that any scenario where the world meets “net zero” will require some amount of carbon removal because the word “net” implies humanity will be cleaning up residual emissions with technology. (Climate analysts sometimes distinguish “net zero” pathways from the even-more-difficult “real zero” pathway for this reason.)
Whether humanity has the technologies that it needs to eliminate emissions then will depend on what governments do now, Deich said. After all, the 2050s are closer to today than the 1980s are.
“It’s up to policymakers whether they want to make the relatively tiny investments in technology that make sure we can have net-zero 2050 and not net-zero 2080,” Deich said.
Congress has historically supported carbon removal more than other climate-critical technologies. The bipartisan infrastructure law of 2022 funded a new network of industrial hubs specializing in direct air capture technology, and previous budget bills created new first-of-a-kind purchasing programs for carbon removal credits. Even the Republican-authored One Big Beautiful Bill Act preserved tax incentives for some carbon removal technologies.
But the Trump administration has been far more equivocal about those programs. The Department of Energy initially declined to spend some funds authorized for carbon removal schemes, and in some cases redirected the funds — potentially illegally — to other purposes. (Carbon removal advocates got good news on Wednesday when the Energy Department reinstated $1.2 billion in grants to the direct air capture hubs.)
Those freezes and reallocations fit into the Trump administration’s broader war on federal climate policy. In part, Trump officials have seemed reluctant to signal that carbon might be a public problem — or something that needs to be “removed” or “managed” — in the first place.
Other countries have started preliminary carbon management programs — Norway, the United Kingdom, and Canada — have launched pilots in recent years. The European carbon market will also soon publish rules guiding how carbon removal credits can be used to offset pollution.
But in the absence of a large-scale federal program in the U.S., lean years are likely coming, observers said.
“I am optimistic that [carbon removal] will continue to scale, but not like it was,” Friedmann said. “Microsoft is a symptom of something that was coming.”
“The need for carbon removal has not changed,” he added.
What happens when one of energy’s oldest bottlenecks meets its newest demand driver?
Often the biggest impediment to building renewable energy projects or data center infrastructure isn’t getting government approvals, it’s overcoming local opposition. When it comes to the transmission that connects energy to the grid, however, companies and politicians of all stripes are used to being most concerned about those at the top – the politicians and regulators at every level who can’t seem to get their acts together.
What will happen when the fiery fights on each end of the wire meet the broken, unplanned spaghetti monster of grid development our country struggles with today? Nothing great.
The transmission fights of the data center boom have only just begun. Utilities will have to spend lots of money on getting energy from Point A to Point B – at least $500 billion over the next five years, to be precise. That’s according to a survey of earnings information published by think tank Power Lines on Tuesday, which found roughly half of all utility infrastructure spending will go toward the grid.
But big wires aren’t very popular. When Heatmap polled various types of energy projects last September, we found that self-identified Democrats and Republicans were mostly neutral on large-scale power lines. Independent voters, though? Transmission was their second least preferred technology, ranking below only coal power.
Making matters far more complex, grid planning is spread out across decision-makers. At the regional level, governance is split into 10 areas overseen by regional transmission organizations, known as RTOs, or independent system operators, known as ISOs. RTOs and ISOs plan transmission projects, often proposing infrastructure to keep the grid resilient and functional. These bodies are also tasked with planning the future of their own grids, or at least they are supposed to – many observers have decried RTOs and ISOs as outmoded and slow to respond. Utilities and electricity co-ops also do this planning at various scales. And each of these bodies must navigate federal regulators and permitting processes, utility commissions for each state they touch, on top of the usual raft of local authorities.
The mid-Atlantic region is overseen by PJM Interconnection, a body now under pressure from state governors in the territory to ensure the data center boom doesn’t unnecessarily drive up costs for consumers. The irony, though, is that these governors are going to be under incredible pressure to have their states act against individual transmission projects in ways that will eventually undercut affordability.
Virginia, for instance – known now as Data Center Alley – is flanked by states that are politically diverse. West Virginia is now a Republican stronghold, but was long a Democratic bastion. Maryland had a Republican governor only a few years ago. Virginia and Pennsylvania regularly change party control. These dynamics are among the many drivers behind the opposition against the Piedmont Reliability Project, which would run from a nuclear plant in Pennsylvania to northern Virginia, cutting across spans of Maryland farmland ripe for land use conflict. The timeline for this project is currently unclear due to administrative delays.
Another major fight is brewing with NextEra’s Mid-Atlantic Resiliency Link, or MARL project. Spanning four states – and therefore four utility commissions – the MARL was approved by PJM Interconnection to meet rising electricity demand across West Virginia, Virginia, Maryland and Pennsylvania. It still requires approval from each state utility commission, however. Potentially affected residents in West Virginia are hopping mad about the project, and state Democratic lawmakers are urging the utility commission to reject it.
In West Virginia, as well as Virginia and Maryland, NextEra has applied for a certificate of public convenience and necessity to build the MARL project, a permit that opponents have claimed would grant it the authority to exercise eminent domain. (NextEra has said it will do what it can to work well with landowners. The company did not respond to a request for comment.)
“The biggest problem facing transmission is that there’s so many problems facing transmission,” said Liza Reed, director of climate and energy at the Niskanen Center, a policy think tank. “You have multiple layers of approval you have to go through for a line that is going to provide broader benefits in reliability and resilience across the system.”
Hyperlocal fracases certainly do matter. Reed explained to me that “often folks who are approving the line at the state or local level are looking at the benefits they’re receiving – and that’s one of the barriers transmission can have.” That is, when one state utility commission looks at a power line project, they’re essentially forced to evaluate the costs and benefits from just a portion of it.
She pointed to the example of a Transource line proposed by PJM almost 10 years ago to send excess capacity from Pennsylvania to Maryland. It wasn’t delayed by protests over the line itself – the Pennsylvania Public Utilities Commission opposed the project because it thought the result would be net higher electricity bills for folks in the Keystone State. That’s despite whatever benefits would come from selling the electricity to Maryland and consumer benefits for their southern neighbors. The lesson: Whoever feels they’re getting the raw end of the line will likely try to stop it, and there’s little to nothing anyone else can do to stop them.
These hyperlocal fears about projects with broader regional benefits can be easy targets for conservation-focused environmental advocates. Not only could they take your land, the argument goes, they’re also branching out to states with dirtier forms of energy that could pollute your air.
“We do need more energy infrastructure to move renewable energy,” said Julie Bolthouse, director of land use for the Virginia conservation group Piedmont Environmental Council, after I asked her why she’s opposing lots of the transmission in Virginia. “This is pulling away from that investment. This is eating up all of our utility funding. All of our money is going to these massive transmission lines to give this incredible amount of power to data centers in Virginia when it could be used to invest in solar, to invest in transmission for renewables we can use. Instead it’s delivering gas and coal from West Virginia and the Ohio River Valley.”
Daniel Palken of Arnold Ventures, who previously worked on major pieces of transmission reform legislation in the U.S. Senate, said when asked if local opposition was a bigger problem than macro permitting issues: “I do not think local opposition is the main thing holding up transmission.”
But then he texted me to clarify. “What’s unique about transmission is that in order for local opposition to even matter, there has to be a functional planning process that gets transmission lines to the starting line. And right now, only about half the country has functional regional planning, and none of the country has functional interregional planning.”
It’s challenging to fathom a solution to such a fragmented, nauseating puzzle. One solution could be in Congress, where climate hawks and transmission reform champions want to empower the Federal Energy Regulatory Commission to have primacy over transmission line approvals, as it has over gas pipelines. This would at the very least contain any conflicts over transmission lines to one deciding body.
“It’s an old saw: Depending on the issue, I’ll tell you that I’m supportive of states’ rights,” Representative Sean Casten told me last December. “[I]t makes no sense that if you want to build a gas pipeline across multiple states in the U.S., you go to FERC and they are the sole permitting authority and they decide whether or not you get a permit. If you go to the same corridor and build an electric transmission that has less to worry about because there’s no chance of leaks, you have a different permitting body every time you cross a state line.”
Another solution could come from the tech sector thinking fast on its feet. Google for example is investing in “advanced” transmission projects like reconductoring, which the company says will allow it to increase the capacity of existing power lines. Microsoft is also experimenting with smaller superconductor lines they claim deliver the same amount of power than traditional wires.
But this space is evolving and in its infancy. “Getting into the business of transmission development is very complicated and takes a lot of time. That’s why we’ve seen data centers trying a lot of different tactics,” Reed said. “I think there’s a lot of interest, but turning that into specific projects and solutions is still to come. I think it’s also made harder by how highly local these decisions are.”
Plus more of the week’s biggest development fights.
1. Franklin County, Maine – The fate of the first statewide data center ban hinges on whether a governor running for a Democratic Senate nomination is willing to veto over a single town’s project.
2. Jerome County, Idaho – The county home to the now-defunct Lava Ridge wind farm just restricted solar energy, too.
3. Shelby County, Tennessee - The NAACP has joined with environmentalists to sue one of Elon Musk’s data centers in Memphis, claiming it is illegally operating more than two dozen gas turbines.
4. Richland County, Ohio - This Ohio county is going to vote in a few weeks on a ballot initiative that would overturn its solar and wind ban. I am less optimistic about it than many other energy nerds I’ve seen chattering the past week.
5. Racine County, Wisconsin – I close this week’s Hotspots with a bonus request: Please listen to this data center noise.