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The Oscar-winner and El Capitan free solo-er talks to Heatmap about solar panels, fatherhood, and his new docuseries, Arctic Ascent.
In 2017, rock climber Alex Honnold went on Jimmy Kimmel Live! to promote Free Solo, the then-new documentary about his unassisted climb of Yosemite’s El Capitan. “Is there anything bigger than that?” Kimmel prompted as a closing question.
“I mean, there are technically some bigger walls in the world,” Honnold said. “But they’re in very remote places — like Greenland.”
Five years and an Oscar later, Honnold was scrambling off a boat at the base of Ingmikortilaq, a crumbly sea cliff that towers nearly 1,000 feet higher than El Cap over an iceberg-ridden fjord in eastern Greenland. His intended first ascent was the culmination of a six-week adventure across ice fields and glaciers.
This time, Honnold wasn’t alone. The Greenland expedition included two other legendary climbers, Hazel Findlay and Mikey Schaefer, as well as Aldo Kane, who provided safety and technical support; Adam Kjeldsen, a Greenlandic guide; and perhaps most surprisingly, Heïdi Sevestre, a Frenchglaciologist who helped set up or run 16 different studies to collect data for scientists around the world.
The team’s adventure is captured in Arctic Ascent with Alex Honnold, a three-part docuseries that premieres on Hulu and Disney+ on February 5. Ahead of its release, I spoke separately with Honnold and Sevestre about the expedition, the importance of climate science, and their respective climbs. (While Sevestre, previously a non-climber, didn’t attempt Ingmikortilaq, she did scale a 1,500-foot rock face known as the Pool Wall while drilling rock cores for samples.) Our conversations have been lightly edited and condensed for clarity.
Unlike a lot of other outdoor sports like mountaineering or skiing or even surfing, rock climbing doesn’t seem as obviously imperiled by climate change. How did this become the cause you wanted to devote your time and money to?
Oh, I think climbing is more imperiled by climate change than most other sports. I mean, you’re right that maybe it’s not as impactful as to skiing, but it’s way more impactful than almost every other sport.
You’re still in the mountains. Wildfire smoke every summer — that’s now a thing that just didn’t exist when I was growing up climbing. Even if you’re just rock climbing, you’re always approaching in the mountains. Nowadays, most couloirs [chutes between rocks that might typically fill with snow in the winter] have melted out. Stable snow fields that have existed for generations are now melted out. Piles of teetering rubble are falling down mountainsides, and also a lot of routes are just less safe. The mountainsides themselves are collapsing, like the Aiguille du Midi gondola in Chamonix. Which, actually — one of the things we were installing in Greenland were temperature sensors on one of the cliffs, related to studying how rocks thaw out, what happens when permafrost melts. I would say that climate change is still incredibly relevant for us.
Your way into climate was through your climbing, then?
A big part of my environmental awareness in general is because of the experiences I’ve had outdoors as a climber. But long before [the Greenland expedition], I started a foundation in 2012 where I’ve been supporting community solar projects around the world and caring about the transition to renewables. I’ve cared about climate change forever. I think this was just the first opportunity to do it on mainstream television.
I saw that Arctic Ascent purchased carbon credits to compensate for production emissions. I was hoping you could talk about that decision, and how else you might have minimized your impact on the expedition, since I don’t think people are aware of how energy intensive film and TV productions can be.
In this case, other than the obvious expense of all of our flights getting to Greenland, we had a relatively low carbon footprint because we were camping the whole time. I think you’re right that a lot of television is kind of insane when you have all the RVs and everyone’s in their own thing and there’s hair and makeup and it’s just crazy with, like, a million cameras. In this case, it was basically a bunch of people camping on a glacier for six weeks, so it’s not quite the same as a Hollywood set.
But yeah, I think the idea to purchase offsets was the obvious bare minimum for a project like this. If you’re going to be doing a whole story around sea level rise, you have to do something.
The Honnold Foundation focuses on bringing solar panels to vulnerable communities, but these are fairly small projects compared to the expansive solar farms we might more traditionally think of. Why did you choose to focus your time on something that might seem, at least on paper, to be of a smaller scale than, say, electrifying the grid?
It’s a totally fair question. In 2012, it wasn’t totally clear that the world was transitioning to renewables at all. It seemed like it was inevitable, but you’re never really sure — you know, back then people were into hydrogen and you’re like, “Oh, maybe we’re going to have hydrogen cars, or maybe battery electric really takes off,” blah, blah, blah. Anyway, now it seems totally clear that the world is transitioning to renewables. Within some timeframe, like 20 to 50 years, the world will be 100% renewable.
The thing is, we currently live in a world where something like a billion people don’t have access to power, and transitioning to renewables will still leave us in a world where a billion people don’t have access to power. [Editor’s note: The number of people living without electricity today is actually closer to 760 million.] As the system changes, there are so many people who are left behind. What the Honnold Foundation tries to do is find that sweet spot in helping with the transition, helping the people who are being left behind.
Part of that is just by necessity — I’m a professional rock climber, I’m not a tech billionaire. So the small-scale grants just make more sense to some extent, but they also have the biggest impact on human lives because when you do these small-scale projects, you can fundamentally change the way people live. That’s a huge impact.
I live in Las Vegas, and you see huge solar farms around the desert. It’s great; the grid is going 100% renewable. I’m into that. But realistically, the only difference it makes in most people’s lives is maybe a small change in their utility rate. Really, the people that benefit are the utility shareholders — it’s some Warren Buffett-owned utility in my case, NV Energy. That really isn’t that inspiring. This is my long rant to say that the Honnold Foundation is trying to help the humans who need it the most.
Did you get a chance to use solar panels on the Greenland expedition?
On this trip, no, because they were running a generator for production and it was charging, like, 50 batteries.
It’s funny because we did an expedition in Antarctica where we made a little climbing film as well. And on that trip, they planned to take a generator and then somebody just forgot the fuel. So we got there and we were like, “Oh, no,” and we wound up doing the whole trip off solar and it totally worked.
This was your first expedition since becoming a father. You’ve worked on the climate cause for a long time now, but I’m curious if your perspective has changed at all since your daughter June joined your family — and I know you have another daughter on the way!
Yeah, soon! No, I don’t think my perspective has changed too much. I’ve always cared about these kinds of issues. The bigger change is in the way that I spend my time. Having a family forces me to be a little bit tighter about the choices that I’m making, what expeditions I choose to go on. That makes a trip like this even more worthwhile, where you get to do great climbing and there’s a real purpose behind it, and you get to share important knowledge about things that matter.
Can you tell me a little more about the decision to bring Heïdi on board? I heard her version of the story earlier this week but I’m curious about how you found her and roped her in.
Isn’t she so amazing?
She was delightful!
That’s the thing with Heïdi. Because when you spend time with her, she just makes you care about about ice. And I don’t even like ice. It’s not my thing; I like rocks. But she made me much more knowledgeable and much more caring about that type of world.
Do you consider yourself an optimist when it comes to climate change?
I think so, which is weird because I’m optimistic despite all the data to the contrary. I understand the predictions, but there’s so much to gain. So far it’s been 20 years that I’ve been reading environmental nonfiction and we haven’t really chosen to make anything of this opportunity, but we still have this incredible opportunity to build a better world to live in, a cleaner world. We can still choose that at any point. And I just keep thinking that at some point, we’re going to choose it. You can’t keep ignoring the obvious thing forever.
How did you get involved in the Arctic Ascent expedition?
This was an absolute dream come true for me — I felt extremely lucky to get a call from the team. It is extremely challenging to go to that one remote location, one of the least studied places on Earth. But Alex, as you know, is a firm believer in the scientific work. The planets really aligned. It took about a year prior to the expedition to design the work we could do with boots on the ground.
I wanted to know what it was like to put together scientific objectives for an expedition like this. It’s a little bit unconventional because there’s a film crew and there was climbing involved.
I think it was extremely brave and extremely daring of the entire team to have the willingness to invite the scientists on board. Because not only did we have the best climbers in the world climbing in a very challenging and hostile environment, we’re also filming a series of documentaries and we have to do some of the very best possible science. So it’s not that easy! But what we did is, we took it step by step. We contacted all the universities and labs and institutions interested in data from this part of the world — and also interested in training me on how to collect this data. Because I really felt — it’s what I was thinking the whole time — I really felt like I was an astronaut on the ISS. I was the only one, and I had to do the best possible work.
We ended up with 16 different protocols to do on this expedition, so it was really major. And, you know, we worked with NASA, we worked with research institutes in Denmark, the University of Buffalo, and the University of Kansas, for example. So it was challenging but a dream come true to be trusted by the scientists.
Your first big polar expedition was actually to Greenland, back in 2011. Had you been back to the island between that research trip and this one?
I had spent a tiny bit of time — not so far in the field as East Greenland, but around the coastlines. But what I was doing there was mostly science communication with people who wanted to learn about the impacts of climate change on the Greenland ice sheets. So I hadn’t been on a big research expedition to Greenland since 2011. And the changes were absolutely massive.
That was going to be my question!
The Arctic is one of the fastest-warming places on Earth. Everything that’s taking place in Greenland is impacting the rest of the world, so I felt that we had a duty and a mission — on top of climbing these incredible monoliths, we actually had to bring something back to society.
In the series, you talk about how remote and understudied East Greenland is by climate scientists. But during the expedition, you were being assisted by support helicopters and by boats. So why aren’t expeditions like this one happening all the time? Is it an issue of funding or a lack of scientific interest in this particular region?
It’s crazy to think of how little data we have from the ground [in East Greenland]. We have satellites — we have as many satellites as we want. But it is very tricky to get there. What you have to understand about this place is that for 10 months of the year, there is sea ice blocking access to this field. Ten months of the year! So the rest of the year — yes, we can access by plane, we can access by boat, but it’s very expensive.
What was great about this project is that we had in mind, “How can we lower our carbon footprint?” This is why, for example, we worked with fishermen who had boats from a nearby village at the entrance of the field. It was very important for us to use local means of transportation. Of course, we had to use helicopters every now and then, because there was no other way. But it’s remote, it’s expensive, and on top of everything, it is extremely hostile.
Oh my gosh, the bashing you get when you go there! This is something that we really wanted to show in the series — how powerful nature can be. And climate change is accelerating and making these changes even more violent. So I think it’s important to show that when nature starts to be a bit destabilized, it can get very angry.
There was a paper in Nature that came out earlier this month that said nearly every glacier in Greenland has thinned or retreated over the past few decades. In the series, there’s a bit of good news, which is that the Daugaard-Jensen Glacier is a little bit more stable than you were anticipating. Do you have any insight into why that might be?
What’s so great is, it keeps part of the mystery! I like that we still don’t totally understand what’s taking place.
The scientists we’ve been working with have told us — this is a bit technical — but it has to do with the shape of the bedrock. It seems that the glacier is resting on a little ridge that might be holding everything together. This might be the reason why the glacier is still stable; also, this part of Greenland still receives a lot of snow.
But we’ve seen some cracks in this perfect picture. You know, the NASA float [that we launched on the expedition] has told us that the temperature of the water in the fjords is increasing. So it’s not all perfect. The environment around it is definitely changing, but it seems that it has some advantages.
Were there any findings from the expedition that you are particularly excited about?
All of them! But science takes a very long time, so at the moment, we’re still waiting on a lot of the results from these different protocols. But what I want to share is something that is very simple: Greenland holds a lot of ice, and if we lose the ice, it means 6 to 7 meters of sea-level rise. As you saw in the paper that was published by Nature, at the moment, Greenland is losing 30 million tons of ice per hour. What is crucial to understand is that every action we conduct back home to reduce our carbon footprints and to preserve our climate helps Greenland and helps our collective future. All this data will help us to prepare for the things to come.
Last question: Have you taken up rock climbing?
I’ll be honest: no. I think I’m a bit traumatized in a good way. I think I needed a minute to recover. But I really want to start climbing again — now, with the launch of this series, I know that it’ll be my mission for this year. Otherwise, I think Alex and Hazel will never forgive me.
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Here’s one federal climate program that’s still working — for now.
The first two weeks of the Trump administration have been chaotic for the clean energy industry, to say the least. Offshore wind permitting is on hold and state governments are canceling plans to sign new contracts. Trump’s federal funding freeze was on, then off-but-actually-still-on, and then technically off again. Despite a court injunction on the pause, many grant recipients still seem to be locked out of their funding portals.
But one climate initiative that’s also one of the president’s biggest bugbears has escaped his meddling thus far: The federal tax credit for electric vehicles is still functioning normally.
Former President Joe Biden’s Inflation Reduction Act created a tax credit of up to $7,500 for new electric vehicles and $4,000 for used vehicles. As of January of this year, about 16 EV and plug-in hybrid models were eligible for the new vehicle credit, which is limited to models that are assembled in North America and meet certain battery sourcing requirements. A loophole in the rules also allows dealers to apply the tax credit to any electric vehicle lease, meaning dealers can offer lessees a discount on a much wider range of options.
Trump attacked the subsidy on the campaign trail, and his transition team was reportedly planning to kill it. One of his first executive orders took aim at a number of electric vehicle-related programs, ordering the Environmental Protection Agency to revoke waivers that allow California and other states to pass stronger emissions standards for vehicles than the federal government’s. His funding review and freeze specifically called out the National Electric Vehicle Infrastructure Formula Program, a $5 billion program to fund EV charging infrastructure. But even though EV charger grantees couldn’t access their funding, car dealerships around the country did not have any trouble getting into the Internal Revenue Service’s portal to log their electric vehicle sales and file for reimbursement for the tax credit.
When someone purchases an eligible electric vehicle, the buyer can either claim the tax credit on their own tax return or they can “transfer” it to their dealership, allowing the dealer to take the credit amount off the sale price. Dealers can then file for a direct reimbursement from the Internal Revenue Service.
I reached out to the National Automobile Dealers Association, which represents new car dealers, to ask if they had heard from any of their members about issues with the advanced payment program for the EV tax credit. “We checked into this earlier in the week, both on the dealer end and with Treasury,” Jared Allen, the vice president for public affairs told me on Friday. “Nothing has changed with the availability of advanced payments to dealers for EV tax credits.”
The president does not have the authority to end the EV tax credit program on his own — changes would have to come through Congress. Before Trump’s inauguration, Republicans on the House Budget Committee circulated a long list of potential cost-cutting measures that included eliminating many Inflation Reduction Act programs. One menu item recommended cutting all clean energy tax credits, but a separate proposal explicitly suggested keeping the EV tax credit and closing the leasing loophole. The Committee is aiming to present a first draft of a budget reconciliation bill by the end of this week, according to E&E News, at which point we’ll see what made the cut.
Rob and Jesse talk with former Ford economist Ellen Hughes-Cromwick.
Over the past 30 years, the U.S. automaking industry has transformed how it builds cars and trucks, constructing a continent-sized network of factories, machine shops, and warehouses that some call “Factory North America.” President Trump’s threatened tariffs on Canadian and Mexican imports will disrupt and transform those supply chains. What will that mean for the automaking industry and the transition to EVs?
Ellen Hughes-Cromwick is the former chief economist at Ford Motor Company, where she worked from 1996 to 2014, as well as the former chief economist at the U.S. Department of Commerce. She is now a senior visiting fellow at Third Way and a senior advisor at MacroPolicy Perspective LLC.
On this week’s episode of Shift Key, Rob and Jesse chat with Ellen about how automakers build cars today, why this system isn’t built for trade barriers, and whether Trump’s tariffs could counterintuitively help electric vehicles. Shift Key is hosted by Jesse Jenkins, a professor of energy systems engineering at Princeton University, and Robinson Meyer, Heatmap’s executive editor.
Subscribe to “Shift Key” and find this episode on Apple Podcasts, Spotify, Amazon, or wherever you get your podcasts.
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Here is an excerpt from our conversation:
Jesse Jenkins: I hear often that we’re also sending parts back and forth as well — that particularly near the border with Canada, we have manufacturing parts suppliers on both sides of the border. So it’s not just the final car, it’s also pieces of the car going back and forth. How does stuff move around in this sort of complicated trade network between, Canada, the U.S., and Mexico?
Ellen Hughes-Cromwick: There is a lot of back and forth, and as you mentioned, a lot of the automotive analysts track the travel of not just the vehicles, but the parts. And the latest estimates show that in some cases, we’re going back and forth across the Ambassador Bridge here in Detroit, you know, six, eight times.
So when you say all of a sudden, as of tomorrow, I’m going to put a 25% tariff on that — I mean, that basically shutters businesses. You can’t absorb a 25% hit, especially if it’s a part or an assembled vehicle. Part of that 25% you could probably absorb, but for the thin margins that parts suppliers work for day in and day out, I mean, there’s just no way. You’re better off shuttering your business. I hate to say that, but you know, you just can’t make the equation work, with a 25% hit.
Jenkins: So this is hypothetical structure, I don’t know if this is exactly right, but so you might have engine parts manufactured in Michigan being sent to Windsor, Ontario to assemble an internal combustion engine. And then it goes back to a plant somewhere else in the U.S. to be assembled into a vehicle. Maybe you get the glass from somewhere for the windows, you know, these are all moving back and forth on a regular basis after so many years of free trade agreements between the two countries, or the three.
Hughes-Cromwick: That’s right. That’s right. And again, coming back to Michigan, because we’re so close to the suppliers in Canada, and we have the lion’s share of automotive suppliers, especially small and mid-size suppliers — so the tier two, tier three. They’re supplying to a tier one big supplier like Magna or Borg.
So you’ve got a lot of these tier two, tier three suppliers in Michigan. Well, why? Because they’re getting a part from a Canadian supplier, putting it into theirs. And maybe that’s a component that goes into an internal combustion engine that’s being produced.
This episode of Shift Key is sponsored by …
Download Heatmap Labs and Hydrostor’s free report to discover the crucial role of long duration energy storage in ensuring a reliable, clean future and stable grid. Learn more about Hydrostor here.
Music for Shift Key is by Adam Kromelow.
For now at least, USAID’s future looks — literally — dark.
Elon Musk has put the U.S. Agency for International Development through the woodchipper of his de facto department this week in the name of “efficiency.” The move — which began with a Day One executive order by President Trump demanding a review of all U.S. foreign aid that was subsequently handed off to Musk’s Department of Government Efficiency — has resulted in the layoff or furloughing of hundreds of USAID employees, as well as imperiled the health of babies and toddlers receiving medical care in Sudan, the operations of independent media outlets working in or near despotic regimes, and longtime AIDS and malaria prevention campaigns credited with saving some 35 million lives. (The State Department, which has assumed control of the formerly independent agency, has since announced a “confounding waiver process … [to] get lifesaving programs back online,” ProPublica reports.) Chaos and panic reign among USAID employees and the agency’s partner organizations around the globe.
The alarming shifts have also cast enormous uncertainty over the future of USAID’s many clean energy programs, threatening to leave U.S. allies quite literally in the dark. “There are other sources of foreign assistance — the State Department and the Defense Department have different programs — but USAID, this is what they do,” Tom Ellison, the deputy director for the Center for Climate and Security, a nonpartisan think tank, told me. “It is central and not easily replaced.”
In addition to “saving and improving lives around the world in an altruistic sense,” USAID has “a lot of benefits for U.S. national interests and national security,” Ellison went on. Though USAID dates back to the Cold War, its Power Africa initiative launched under President Barack Obama in 2013, and energy investment projects around the world followed. Of its $42.8 billion budget request for 2025, the agency had earmarked $4.1 billion for global infrastructure and investment programs, including energy security and excluding its additional targeted energy investment in Ukraine.
Some of these benefits are immediate and obvious. For example, USAID invested $422 million in new energy infrastructure in Ukraine, including more than a thousand generators and a solar and battery storage project, all to brace against Russia’s weaponized flow of fossil fuels. (USAID was also reviewing the deployment of Musk’s Starlink Satellite Terminals to the Ukrainian government prior to his gutting of the agency, per The Lever.)
But USAID is in the power business for other strategic reasons, too. USAID initiatives such as assisting Georgia and Kosovo in running their first renewable energy auctions help to secure energy stability and independence among countries where Russia is trying to gain sway. By the same token, rural electrification efforts in Africa help the U.S. remain a leader on the continent even as China is looking to make inroads. “China’s infrastructure and assistance programs around the world, like the Belt and Road Initiative — they consider that very explicitly a lever to peel U.S. allies away,” Ellison said. “Russian propagandists are already cheering the potential shutdown of USAID or a cut to their programs, for those reasons.”
Likewise, USAID has also rolled out energy projects in Indonesia, helping to deploy rooftop solar plants at airports and investing $200 million into a geothermal plant and two hydropower plants. Such efforts in the Indo-Pacific “pay dividends in strengthening relationships with allies and partners critical to that competition with China,” the Council on Strategic Risks, the parent institute of the Center for Climate and Security, wrote in a memo Tuesday.
That’s part of what makes the USAID whiplash so severe. Not only is the concern and uncertainty of the agency’s shutdown in complete opposition to the administration’s purported goal of “efficiency,” but Trump’s knee-jerk reaction to anything that suggests the idea of a U.S. handout — much less one that includes programs explicitly addressing “climate change” — runs counter to his stated goals of protecting U.S. troops and national security interests. USAID programs “are very cost-effective investments in terms of being a cent or less on the U.S. taxpayer dollars,” Ellison told me. “They’re paying for themselves over and over again in terms of humanitarian or military spending averted in the future.”