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Do you want a light tailwind or a full-on hurricane?

“The only thing better for the climate than buying an EV over a gasoline-powered car is buying no car at all,” the climate scientist
Rob Jackson has written. But for many Americans, not having a car at all is the stuff of logistical and cultural nightmares. The average person living in the U.S. covers more than 1,000 miles per month in their vehicle, and nearly 45% of people don’t even have the option of opting for public transportation. Ditching your car? You might as well ask people to give up their cell phones.
But across the country, transportation advocates and e-bike warriors are looking for solutions to go, if not entirely car-less, then at least car-light. Heatmap has put together a comprehensive guide to help you make a decision that best fits your lifestyle, whether that’s becoming a superpedestrian, a committed e-bike user, or just trying to replace a couple of short-haul drives a week.
Doug Gordon is the cohost of “The War on Cars,” a podcast about the fight against car culture. He is also a writer, TV producer, and safe streets advocate, and he advises nonprofits and mobility companies on communications strategies to promote better streets and public infrastructure through his Brooklyn Spoke Media consulting business.
Alexa Sledge is the director of communications at Transportation Alternatives, a nonprofit organization that has worked to promote non-polluting, safe, and quiet travel in New York City since 1973.
Bryan Dean is the sales manager at The eBike Store in Portland, Oregon, which opened in 2008 as the city’s first e-bike-only retailer. He’s spent over six years helping customers pick out their perfect bikes and is also the creator of the #eBikeAnywhere hashtag.
Kevin Lau is a product specialist at REI with more than 20 years of experience. He is based out of Marlton, New Jersey.
Only 8% of U.S. households currently get by without owning a car, and less than 1% of Americans commute to work by bike. The U.S. is so driving-centric that we’re home to one-fifth of all the cars on the planet despite having less than 5% of the global population. Eleven states have more registered vehicles than people.
But just because driving has always been your default doesn’t mean it makes the most sense for the kind of travel you do — even if you live somewhere without great public transportation. Over half of all trips Americans make in a car are for a distance of less than three miles — perfect to convert into a bike ride.
“I think of mobility like a Swiss army knife: You have to use the right tool for the job,” Gordon told me. “If I just need to pick up a carton of milk, does it make sense to do that in a 6,000-pound metal box on wheels that is powered by dinosaur juice? Not so much.”
On average, commuting by bike in the U.S. saves an estimated $2,500 per year, and it has been found to have massive benefits for one’s mental health, cardiovascular health, and even productivity at work. Yes, even e-bikes!
“If you go to places like Copenhagen or Amsterdam — places where there are huge numbers of cyclists — and you poll those people, concern for the environment barely cracks the top five reasons why they cycle,” Gordon said. “The reasons why people cycle in Denmark and the Netherlands are because it’s safe and convenient, and it’s often the fastest and cheapest way to get where they’re going.”
Transportation is the most significant contributor to climate change in the United States, with nearly 60% of the sector’s greenhouse gas emissions coming from cars alone (another 23% comes from trucks). Replacing a quarter of your total driving with walking, biking, or e-biking could save 1.3 tons of greenhouse gas emissions per year, according to our friends at WattTime — about the same as forgoing burning 1,433 pounds of coal or three barrels of oil. If every American drove even a mere 10% less per year, it’d be like taking 28 coal-fired power plants offline.
You can still make a significant impact without ditching your car, in other words: You simply have to drive less. And the upsides are enormous. More Americans die of car pollution than in car accidents every year. Additionally, commuting by bike or by foot makes us healthier and happier.
It also helps us realize what our community priorities should be. “Individual action is not always what we need to focus on,” Gordon said. “We need to focus on institutional change. But my philosophy is that lots of individual action actually adds up to the political will to get the institutional change you need.”
A survey of studies from five countries (including the U.S.) found that the main barriers to cycling were low perceived safety, bad weather, lack of cycling infrastructure (including “shower facilities” at one’s destination), and distance and perceived effort.
Safety is a valid concern. Riding a bike is about 500 times more likely to be fatal than riding a bus, according to a 2007 study; even with the success of programs like New York’s Vision Zero, collisions with cars remain a real danger for people on bikes. The car-related pollution inhaled while cycling can also shorten a cyclist’s life by an estimated one to 40 days. But the benefits of cycling on average far outweigh the risks: Riding a bike adds an estimated three to 14 months to your life, even when the possibilities of collisions and air pollution are considered. The health benefits are so significant that a separate study by Swedish researchers found that cyclists had a 47% lower risk of early death and a 10% lower risk of hospitalization compared to car and train commuters.
What about concerns about shower availability and the “distance and perceived effort” of riding a bike? That’s where the advantages of an e-bike’s pedal assist come into play. “E-bikes are great at blasting through any concerns you have about sweat,” Gordon told me. Even in hot weather or on difficult terrain, pedal assist can keep you looking fresh when you arrive at the office.
The first step to driving less is thinking about when and where you can replace specific trips with walking, cycling, or public transportation instead. Lau told me his general rule of thumb is that if a trip is less than a mile and he can safely walk (i.e. if there are sidewalks or safe paths), then he’ll walk. “If it’s more than that, I’ll take the bike if I have a place to lock it or can bring it into my workplace or store,” he said. For trips where he might need some extra assistance — that are farther, longer, hillier, or will require carrying “more cargo without working as hard,” he’ll opt for an e-bike instead.
You can do a lot of this reconnaissance from your couch. Apple Maps and Google Maps can take a lot of the guesswork out of finding the best bike paths to and from your house and the other places you frequent, including informing you ahead of time if the route will require riding on major or minor roads or ones with protected bike lanes. Google and Apple Maps can also give you real-time information about public transportation options in your area (as well as allow you to plan for trips when service might be reduced, like late nights or weekends), and many transit systems now have their own apps to make tracking delays or alternative service simpler.
It’s funny how you don’t realize where the long, slow inclines are in your neighborhood until you’re huffing up them on a bike. Google Maps and Apple Maps can show you what elevation to expect on a walking or cycling route. If you live in a hillier area, an e-bike might be better than a traditional bike since it can take some of the ouch out of the ups.
“Something really, really important that people don’t always think about is gear,” Sledge told me. “It doesn’t necessarily have to be expensive, but if you can only ride your bike when it’s 80 degrees and sunny, that’s not the best scenario.”
If you live somewhere where it gets hot, rainy, snowy, windy, or the weather can change unexpectedly, think ahead of time about the sort of gear you’d need to make cycling or walking more comfortable. (We have a checklist of ideas below.)
California, Colorado, Connecticut, Hawaii, Massachusetts, New York, Oklahoma, and Vermont all have statewide tax credits or rebates to encourage e-bike adoption.
Live somewhere that isn’t on that list? Here is a super handy tracker from the Transportation Research and Education Center at Portland State University of more than 100 counties, cities, and municipalities that offer e-bike incentive programs. Also, look for e-bike lending libraries that might be in your area.
If you’re having trouble learning about the programs available to you, head into a brick-and-mortar e-bike shop in your area or connect with your local transportation advocacy group — they’ll know what programs you can take advantage of and be happy to point you in the right direction.
Do you know what bike enthusiasts love more than anything? Creating new bike enthusiasts. If you’re still feeling intimidated by the idea of getting on a bike — or even if you’re not — “find a friend who’s already doing it,” Gordon suggested. Bike people are “an evangelical bunch, and if you tell a friend who you know is into biking or bike commutes regularly that ‘Hey, I’m thinking of doing it,’ I can guarantee that person will be more than happy to hold your hand and help you through your first ride.”
There are dozens of emissions-free or emissions-light transportation options, from using your own two feet to digging the old beater bicycle out of your garage to going full Steve Wozniak with a Segway. The most important thing is to something you’ll actually use.
That said — “What’s really going to be the best option for most Americans is an e-bike,” Sledge told me. “That’s a true car replacement when so often a [traditional] bike can’t be a true, true, true car replacement.” E-bikes are simply more practical and comfortable for longer rides or daily commutes, and if you need to haul things like groceries or children, they can’t be beaten.
I’ve looked at all my options and don’t think I can drive any less than I already do. What can I do instead?
There’s no way around it: E-bikes are pricy. “An e-bike is going to be a big purchase — nowhere near as much as a car, but still, it’s a major purchase,” Sledge said. Even with incentive programs (more on that below), you’re likely to spend more than $1,000 out of pocket.
It is tempting to look for a bargain. But Dean stressed that manufacturers and bulk retailers are “sacrificing a lot” in terms of quality and service to make a profit at lower price points. As a rule, “If you’re spending less than $1,000 on any bike, it’s landfill,” he said. “And that waste is toxic — odds are, it isn’t going to be recycled properly.”
Gordon suggested that if you’re concerned about how often you’ll use an e-bike, it makes sense to get “a cheap regular bike” initially. “Then you can figure out if this is something you want to do in the long term, and after a few weeks, or a month, or a year, you can go, ‘Okay, I’m ready for the $1,000, $2,000, $5,000 bicycle.’”
Perspective is important, too. Yes, e-bikes are expensive — if you compare them to regular bikes. “If you compare them to cars, they’re a bargain,” Gordon said. “E-bikes are a replacement tool; they’re not an upgrade from other bikes. So if you’re a family with two cars and are going down to one, getting a $2,500 or even $5,000 e-bike is a relative bargain.” Additionally, many retailers — including The eBike Store in Portland, Oregon, where Dean works — offer installment plans to help make the purchase more manageable.
Conversion kits are a popular way to convert an analog bike you already own into an e-bike by attaching a motor to the front hub, rear hub, or mid-drive. Many of these kits can be found cheaply on websites like Amazon, though The Washington Post warns that it is still a “very Wild West market” and to only buy batteries from reputable e-bike battery brands (low-quality batteries are more likely to start fires). While converting to an e-bike might be a good option for you if you want to dip a toe in the e-bike water, you’ll still need to spend several hundred dollars to get a kit that gives you the same oomph as an actual e-bike. That said, whatever option gets you on a bike is the best one, and if you’re converter-kit curious, here’s a good guide for learning where to start.
“Buying a bike at a brick-and-mortar store from competent, kind people who love their job — customers are going to have a fantastic experience,” Dean told me. “They’re going to get a great taste for the bike, which means they’ll be riding it a lot. We’re not in the business of selling bikes that sit and rot in someone’s garage.”
It is especially important to go to a store with e-bike specialists on staff (rather than a bulk retailer like Costco — or worse, anything online) because the mechanics will have checked the bike over and adjusted the safety points so it’s ready to go. “You’re going to get educated and get a strong appreciation of the beautiful tool that you are buying, and learn how to operate it and make it last,” Dean added.
Most importantly, though, ensure you take the bike for a test ride before handing over your credit card. Any retailer worth its salt will offer this as an option; the best retailers will take you on a guided test ride, where they’ll teach you how to use the e-bike you’re trying out. But the bottom line is, “Don’t buy a bike that you haven’t ridden,” Dean said. “Ride the bike before you buy it; that’s in all-caps with smiley faces and exclamation points. Don't buy the bike if you can’t ride it first.”
“Buy the bike that’s going to put the biggest, dumbest smile on your face.”
Dean said he points riders looking to log miles to the Specialized Como. “When you’re commuting long miles, you want something comfortable, something that’s reliable, something that has a strong enough motor that will get you where you’re going and a big-enough battery that you’re not going to sweat it,” he said. The Specialized Como is also an excellent choice for people who want to “show up to work not sweaty” but maybe get a little bit more of a workout on the way home.
If you prefer commuting on a traditional bike, Lau suggested REI’s ADV 1.1, a road touring bike, or the CTY 1.1 bike, a less-expensive hybrid built for logging longer distances and enduring the daily wear-and-tear of a commute. His e-bike pick for commuters is the CTY e2.2, a popular, well-reviewed, and accessible commuter bike specifically marketed to “replace car trips.”
Dean loves to recommend Tern bikes to people who want to make trips with their kids. “They’ve been doing this for a long time, they have tons of great accessories, and they use Bosch power systems,” he said — all points in the bike’s favor. That customizability and reliability make it a good fit for families who want to be able to tailor the bike to their needs and price point while also not having to worry about it breaking down in the middle of a toddler’s meltdown.
But there is one other primary reason why Dean points parents to Tern. “All of their bikes are rider first, cargo behind” — versus bucket bikes that put the cargo in front of the rider. While the latter design is also popular, it also means that if you’re trying to squeak out into traffic, you’re nosing your most precious cargo ahead of you, into potential harm’s way.
Lau offered three options for e-bikes that won’t make you miss the trunk of your car, starting with the Cannondale Cargowagen, which can lug up to 440 pounds — that is a lot of Chili & Lime Flavored Rolled Corn Tortilla Chips. Its range isn’t quite as good as some other bikes on the market — the battery is 545 watt-hours — so it’s probably a better fit for people who live in higher-density areas or near their preferred market. (You can always buy a second battery if you want a little more range.) The Cargowagen is also a class 3 bike, meaning you won’t have to worry about the ice cream melting before you can get home.
Like Dean, Lau loves to recommend Tern bikes for handling heavy loads, especially the Tern GSD S00, which conveniently folds up so it can even be stored in an apartment or transported in an elevator while still being compatible with Tern’s line of cargo-carrying products — but at almost $6,000 before add-ons, it’ll likely be out of many first-time e-bikers’ budgets. Tern’s Vektron S10 is a less expensive option and still has the power to handle hilly roads with six Trader Joe’s bags in tow. (Note that both Terns are class 1 bikes, meaning the pedal assist tops out at 20 miles per hour.)
“Lightweight e-bikes are out there,” Dean said, and can be had — for the right amount of money. “They’re usually going to start around $3,500 to $4,000 and then go up from there,” he told me, pointing to Specialized as one of his favorite lightweight brands.
Keep in mind that you may not need a lightweight e-bike. “No one has ever come in and said, ‘I want a heavy bike,’” Dean pointed out. Electric motors are, by necessity, heavy, so getting a lighter bike can mean sacrificing half the motor and battery. There are workarounds: “If you have stairs to go up, almost all of these bikes have a walk assist mode,” which gently turns the tires so you’re not fighting gravity on your own, Dean told me. Likewise, if you’re trying to load your bike onto a car rack, “you don’t have to Hulk it up there; you can be a little smarter about your efforts by picking up the front wheel and putting it in the rack behind your car. Then pick up the back wheel.” If you’re really struggling with your bike, you can always pop off the battery — one of the heavier components — and carry it separately.
The best new commuter bike you can get away with is the CTY 1.1, the analog bike Lau recommended above, but for an e-bike option, he points customers to the Co-op CTY e2.1, an easy, accessible, no-frills class 1 bike that won’t run you more than $2,000. It might be a little light on features for a serious urban commuter, though.
Dean told me that the Gazelle Medeo and some of the bikes from Electra Country will have price points that could be more acceptable to customers on a budget. Gazelle uses the reliable Bosch power system, and the Medeo is “really good” and comes in “multiple versions.” (I found one for less than $2,000). Electra Country is a subsidiary of Trek and is a “one-size-fits-all, beach cruiser-looking bike” that comes in super fun colors.
Congratulations! You’re the proud owner of a bike or an e-bike (or skateboard or e-scooter or a really good pair of walking shoes). What happens now?
While the benefits of riding a bike (or any other form of active transportation) still outweigh the risks, cars are getting bigger, their blindspots are getting larger, and pedestrian and cyclist deaths nationwide are at a 40-year high. Even electric vehicles might be a small part of the problem since they’re so much heavier than regular cars — and that much more dangerous if you get hit.
I asked Sledge how newly carless commuters could become better pedestrians, and she quickly corrected me. “There is no such thing as being a good pedestrian,” she said. “So often, in the United States, when we have groups of people that are consistently harmed by other groups of people, we’re like, ‘How can the victims be better?’ And the real answer is, ‘How can we create systems and designs that protect those people?’”
We’ll get into that. But the bottom line is: be safe when you’re out on the road. Learn how to navigate intersections safely, and don’t take unnecessary risks. Especially if you’re on an e-bike, “You’re traveling faster than most cars are expecting you to,” Dean said. “To remember that, imagine you are not only invisible, but they’re all trying to kill you.”
“Riding a bike is a really good entry for a lot of people into larger political conversations about climate, the design of their cities or towns, and a host of other issues,” Gordon told me. It might only be a short amount of time before you start to wonder why there aren’t more protected bike lanes in your town or city, or why mass transit isn’t reaching your neighborhood or destination, or why lousy road design is making your commute more dangerous than it should be.
There’s some good news, though: There has never been a better time to become a transit advocate. “It could be as small as your block, or your neighborhood, or your city, but there are tons of groups all over the country that focus on working to make them safer and better for the people in them,” Sledge said.
One of the best places to start is by making your voice and your values heard. As Sledge reminded me, car companies already have — and continue to spend money and time lobbying policies that are better for drivers (and their bottom lines) than others on the road. But where to begin? “First, I would look for any kind of organization in your community, your neighborhood, or your city that focuses on safe streets or fighting climate change, and see if you can get involved with them,” Sledge said. “And if you don’t have that kind of organization, start to go to your city council meetings, making your voice heard with your local representatives — those kinds of things really make a difference.”
Another great resource is Transportation for America’s Transit Advocate Guide, which takes you step-by-step through building a movement in your community. Transportation Alternatives also hosts occasional activist trainings to help you learn how to organize successful campaigns in your neighborhood.
Maybe you bought an e-bike or a monthly metro pass … but you’ve been unable to quit your car the way you thought you would. That’s okay! This is not an all-or-nothing activity. “Don’t feel guilty if you’re still driving,” Gordon stressed. Remember that “you’re operating within a system that is built for you to drive, so starting small is really good.” Every fit and start of progress helps.
Remember also that better, low- and zero-emissions-friendly infrastructure and a pedestrian-first culture aren’t going to be built overnight. Even the most hard-core among us still need to use cars occasionally. Just “reimagining how we’re going to truly allocate our public resources — our public dollars, our public services — to serve everyone, and radically rethinking how to do that, is so important,” Sledge said.
I will leave you with one last instruction for ditching your car. When you discover the bike that lets you “follow your joy, follow your bliss,” and puts a “smile on your face” — as Dean likes to say — don’t keep it to yourself.
Someone else in your community is beginning to think about ditching their car, too. It’s your turn now. Go forth. Become someone else’s enthusiastic bike geek.
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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.