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A conversation with former congressman Bob Inglis.

Bob Inglis was snorkeling in Australia’s Great Barrier reef in 2008 when he had what he called “an epiphany.’’
The then-Republican congressman from a very conservative district in South Carolina had scoffed at climate change throughout his two terms in the House, but his certainty had begun to give way four years earlier when his son told him, upon turning 18, that he needed to “clean up his act on the environment.’’
The comment stung. Inglis was still thinking about it in 2008 during a congressional trip to Antarctica, where he saw researchers extract ice cores that showed steadily rising levels of carbon dioxide since the Industrial Age began. His belief that climate change was a hoax began to weaken.
It was on another fact-finding trip that Inglis toured the Great Barrier Reef. Alongside the Australian oceanographer Scott Heron, he saw that the once-colorful reef was being bleached and killed by warmer, more acidic waters. It was visible proof of the destructive power of climate change.
Heron, a fellow Christian, talked about the need to save the reef and the planet with such passion, Inglis said, that “I could see that he was worshipping God in what he was showing me. My metamorphosis was complete. I decided that I was ready to act.’’
The next year, Inglis co-sponsored legislation to impose a tax on carbon emissions. That “heresy’’ did not go over well in his district, and he was crushed in the 2010 primary, 71% to 29%. (The bill, meanwhile, never made it out of committee.) “I knew that I was making the right choice,’’ he said. “It’s a choice that I’d make again.’’
His newfound commitment to addressing climate change led him to launch a nonprofit group, RepublicEn, devoted to bringing conservatives into the climate conversation. Today, Inglis tours the country, doing about 100 events a year at conservative groups such as College Republicans, Rotary Clubs, hunting and fishing clubs, and local GOP organizations.
The following interview has been edited for length and clarity.
You’ve talked about how, as a Republican congressman, you refused to accept climate change because the issue was associated with Al Gore, a Democrat. Do you think that what political scientists call “negative partisanship’’ is a major reason why conservatives still resist action on climate change?
Yes, it is. That’s why we need credible messengers who can speak the language of the tribe and who can make the tribe believe that conservative ideas can add something to this conversation. Conservatives have an undeserved inferiority complex on climate and energy. We understand the concepts of negative externalities and market distortion and accountability. Free enterprise — accountable free enterprise — can fix climate change.
You are referring to the libertarian concept of negative externalities, actions that negatively affect other people. Can you explain how it relates to carbon emissions?
When you burn fossil fuels, you’re basically dumping trash into the sky. You don’t pay a tipping fee for putting carbon waste into the atmosphere and contributing to climate change, so there is an implicit subsidy for burning these fuels and belching carbon — in fact, it’s the granddaddy of all energy subsidies.
Take that subsidy away and everything changes. Virtually all coal would be quickly replaced with natural gas and wind and solar and other methods. If you use a tax to set the real price of carbon, the free market will figure out cheaper and better ways to produce electricity. Things will start happening faster. You’ll see more development of hydrogen and better batteries that don’t use lithium to store the energy created by solar and wind. Climate change is an economic problem. Just fix the economics and innovation will happen. That’s the language of conservatism, and it’s how I talk to conservatives about it.
Why do you believe a carbon tax is the best way to bring Republicans aboard?
It is still the most obvious way to solve climate change, and the most efficient. This is an idea that goes back to Milton Friedman in the 1980s, when he said, instead of trying to regulate polluters, tax pollution. Make them pay for their negative externalities. You tax the trash they dump into the sky, just the way we impose a cost for dumping trash on land. It has to be a substantial tax, and it has to be steadily rising to increase incentives to find other forms of energy that don’t turn the sky into a dump for emissions. If you do that, you don’t need tax incentives for solar and wind — the rising cost of fossil fuels will provide all the incentives they need. But you also need to make this tax apply to other nations and the goods they import into the U.S.
How do you do that?
You can put a tax on the carbon produced in goods imported from China. Sen. Bill Cassidy [R-Louisiana] recently proposed a foreign pollution tax like the carbon border adjustment mechanism the European Union has already adopted. We very much welcome this idea because it’s a way of making the transition away from fossil fuels worldwide. Many Republicans say it’s not fair if the U.S. lowers emissions while China can do what it wants. The beauty of a foreign pollution fee is that it addresses this problem in an efficient way. It creates economic incentives for China to reduce its own emissions.
A carbon tax has been talked about for a long time but has gone nowhere in Congress. Do you see any evidence that it’s more politically palatable today?
I think a carbon tax is like the rescue of the banks after the financial crisis in 2008. Until the banks collapsed, bailing out the U.S. financial system seemed impossible. But when the consequences of not doing it became clear, the bailout went from impossible to inevitable without passing through probable.
Several catalyzing events could propel the carbon tax forward. The most likely is the momentum created by the European border adjustment mechanism, which is really a carbon tariff. Companies in the U.S. who deal with Europe are going to be calling their members of Congress and Senators and saying, wouldn’t you really rather collect that revenue for carbon emissions here at home through a carbon tax rather than sending the money to Europe? At some point, the light will go on at the U.S. Capitol — wow, the Europeans are getting a lot of revenue with a tariff on carbon, and we could do that, too. We could do that to China. We could say, the stuff you are selling here, you have to pay a carbon tariff.
Another momentum-maker is our federal debt. If interest rates stay high, interest will really start eating more and more of the federal budget. I have always said that a carbon tax should be revenue neutral, but given what’s happening to the deficit, it could also provide that revenue. Necessity may force Congress to turn to what used to seem impossible.
Could extreme weather provide another incentive?
Yes, there could be some catalyzing climate event that really focuses the mind. I don’t know what it will be. During the civil rights movement, when Americans saw segregated cities turn the police dogs and fire hoses on protestors, it really turned the tide on Jim Crow. We’ve had so much extreme weather that people are getting desensitized to it, but there still might be a catastrophic event that changes people’s priorities.
This year, we’ve already seen some of the most extreme weather and weather-related disasters in recent human history — massive wildfires that darkened skies across the country, relentless heat waves, fierce storms, and destructive flooding. Do you see evidence that this is registering with conservatives?
A lot of people won’t change their minds because of what a scientist says. But experience is different. Experience is a harsh teacher. You can’t argue with the thermometer. You can’t argue with the yardstick showing that sea is rising. You can’t argue with the water coming into your home. In 2010, when I was getting tossed out of Congress, there was a lot of aggressive disbelief in climate change. People told me, I don’t believe in climate change, and you shouldn’t, either.
Right now, it’s quite different. Conservatives say to me, sure, you can switch to clean energy here, but what difference does it make if you don’t get the rest of the world in on this? Why should we do this alone? That’s when I talk about negative externalities and a carbon tax, and imposing a carbon tariff on China and other countries. That changes their perspective.
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What do you say to The Wall Street Journal conservatives who concede that climate change is occurring but insist that it’s less disruptive and cheaper to invest in adaptation to a hotter, more extreme climate?
Adaptation is a defeatist argument. Good luck building a seawall in Miami-Dade, for example. As sea levels rise, the water there is coming up into streets through the porous bedrock under that area. In South Carolina, go to coastal areas and you’ll see the big stands of pine trees dying because of salt water intrusion. In Montana, the forests are now filled with dead and dying trees because bark beetles that used to die in the winter now survive and go on attacking the trees year-round.
Adaptation won’t work in many places where people are going to lose what they love. It won’t work in New England when maple trees no longer produce maple sap for syrup because the winters are too warm. It won’t work at ski resorts that no longer have snow. When you stop arguing and pay attention to what you’re losing, you start saying, wow, how do we fix this?
Polls show there is still a big partisan divide on climate change. Do you think that can change?
The problem is no longer a lack of information. People can see what is happening. The problem is a lack of validation, and it’s a lack of hope. We need validation from conservative leaders that climate change is obviously real, and that we obviously need to do something about it. And we need to show conservatives that the free enterprise system can provide solutions once we get the true cost of carbon right.
If you keep telling people about all the terrible things happening and that we’re all hosed, it’s depressing. It makes people say, I don’t want to work with you. But if you can come to conservatives and say, we can light the world with new energy sources, and we can have more energy and more freedom and more manufacturing and more jobs — we can have a better world if we act on this. We can have true energy independence, so we don’t need to depend on energy from authoritarian regimes who chop journalists up into pieces. I’d like to be free of those people. I’d like to able to say to the Saudis, we don’t need your oil. Why don’t you see if you can drink that stuff?
The current Republican presidential field is not validating that climate change needs to be addressed.
In the first debate Nikki Haley did say climate change is real, but immediately pivoted to talking about how China and India have to lower their emissions, too. That’s a step forward, but it’s not enough. In 2018, when Republicans lost the House, it dawned on then-Majority Leader Kevin McCarthy and some other Republicans that you can’t win suburban swing districts with a retro position on climate change. So McCarthy convened a special Republican conference on climate, and the takeaway was, we need to get with it.
Polling data shows a majority of young conservatives and young evangelicals want action on climate change, and if you want to win in 2024, 2028, and 2032, you need to have a plan that you can talk about. But then Trump decided to run again, and he’s doubling down on climate disputation, and everyone in the party is afraid of the Death Angel. Trump can’t get anyone elected, but if he comes after you, he can get you killed in a primary.
But even if Trump wins, he will be a lame duck by 2026, and then the party is going to ask, where do we go next? My prediction at that point is that Republicans will be tired of reruns of the Trump show and will want a fresh approach that can win over young voters and suburban voters. And if he loses in 2024, that’s when you’ll have the reevaluation.
You’ve said of climate change, “We’re all in this together.’’ That sounds progressive — maybe even vaguely socialistic. Does that message resonate with conservatives who are suspicious of collective action?
[Laughs.] Maybe I should examine that statement more closely. But as a person of faith, I think it is just obvious we are literally in this fight together.
I think you can summon all Americans to a higher cause. I think if we can assure conservatives, I’m not trying to cancel you, and you have ideas to contribute to this discussion about the power of economic incentives, free enterprise, and innovation. You have to make conservatives feel that they have something important to contribute.
You have to make them feel they have something to gain from the solutions. If you the United States makes a bold move on carbon taxes and tells China and other nations, you have to pay a carbon tariff on the stuff you export to us, then it becomes an international effort to curtail emissions. Then conservatives start saying, we’re really talking about realistic and fair solutions. That’s when you can say, we need to take action because we do not want to lose this amazingly beautiful planet. That’s when you can say to them, we’re really all in this together.
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SoftBank’s error and Nvidia’s scandal suggest data centers may have already peaked as an economic and energy trend.
This is Heatmap Daily, a weekday digest written by our executive editor. Subscribe here.
Covering energy and climate change sometimes means seeing certain stories in a different light than others. And a particularly vivid hue illuminated The Wall Street Journal’s report today that the Japanese conglomerate SoftBank Group is taking a $3.7 billion loss on several gigawatts’ worth of natural gas turbines.
For the Journal, the big news is that SoftBank and its billionaire founder, Masayoshi Son, are failing to capitalize on the artificial intelligence boom. But at Heatmap, we’re thinking about the turbines.
The data center boom and the return of electricity load growth has depleted the world’s supply of natural gas turbines. SoftBank had purchased reservations for about 13 gigawatts of turbines, according to the Journal. That’s a staggering amount of electricity — it could meet New York City’s maximum power draw on the hottest part of a summer’s day. The conglomerate now seems set to dump reservations for about four gigawatts’ worth. Keeping a reservation, it turns out, really is harder than making it.
Most of those rotors were reportedly from GE Vernova, one of the world’s largest producers of gas turbines. GE Vernova’s order list for gas turbines has been filled for nearly two years and the waiting list now stretches into 2031. That has led data center developers, hungry to get power as soon as possible, to reach for ever dirtier forms of electricity generation, including diesel generators and even old jet engines.
On that front, SoftBank’s failure to sell the turbines to a higher bidder suggests (albeit weakly) that demand for energy-producing assets might not be as strong as the AI boom’s backers once thought. SoftBank was already set to send about 9 gigawatts of turbines to the enormous Trump-backed OpenAI data center in Pike County, Ohio. The roughly remaining four gigawatts will be released back their manufacturers. (One thing this news can’t quite tell us, alas, is what type of turbine set-up will be used in the Pike County facility, which will be the world’s largest gas-fired power plant if it is build to completion. Recent public filings have suggested the facility isn’t planning on using any turbines in the more efficient combined-cycle configuration, which would mean the plant’s carbon intensity will be worse than most other new natural gas plants. But we’d love to hear any tips on this front.)
To zoom out for a second, I’m struck by how the AI bubble has been replaced by an AI muddle. As I wrote this, news emerged that Nvidia is preparing to fire its CEO, Jensen Huang, for his affair with a Chinese woman who is alleged to be a spy. (He had at least one more affair with another Nvidia executive, according to The New York Times.) Under Huang’s leadership, Nvidia has invested in a sprawling and sometimes circular network of energy-related companies, including Emerald AI, a startup that helps data centers flex their electricity consumption, and Redwood Materials, a battery recycler and producer led by the former Tesla executive J.B. Straubel. Huang has used Nvidia’s enormous balance sheet to buy down the risk of other AI and AI-related companies, propelling the overall AI trade to become the biggest story in American markets.
Now that balance sheet is in peril: Nvidia’s stock is already down 11% over the past five days, and it has fallen another 8% in after-hours trading since news broke of Huang’s ouster. If the chip designer’s financial network began to fray — or even if the next CEO had a lower risk appetite than Huang — then its demise could impact a much larger set of firms.
Even before the Huang scandal broke, companies at the center of the AI trade were showing signs of weakness. Alphabet, Meta, and Microsoft are all down on the month. Nvidia was already lagging by about 10% on the month before its hebdomas horribilis began, too. The memory and chip makers Micron and Applied Materials are both down more than 25% in about the same period, and GE Vernova and Oklo have fallen nearly 20%. Although the data center company Coreweave rebounded on an earnings beat today, it’s still down 24% on the month and nearly 50% since May.
The market rout isn’t total — Anthropic seems likely to enjoy one of the largest IPOs ever in the next week (although perhaps not with quite as large a valuation as its investors once imagined). And the underlying technology of AI seems to be getting worryingly better all the time. But even though the politics of data centers and AI seem set to dominate the new Washington, I’m wondering if data centers as a mainstream economic trend might have already peaked. Americans voted for a more subdued AI boom in the midterms. Now it seems like they might get it ahead of schedule.
Lunar Energy’s latest AI-powered system aims to integrate EVs into the automated demand response mix.
In theory, it’s straightforward to assemble the smart energy home: Solar panels, home backup batteries, and electric vehicles, plus smart thermostats, heat pumps, and water heaters — all the individual pieces can be had for the homeowner who can afford the up-front cost. The challenge is getting all those pieces to talk to one another.
Bay Area-based Lunar Energy is one of the tech firms that’s been trying to crack this problem. Today, it announced an upgraded version of its artificial intelligence-powered home energy control system, which not only integrates all those separate systems but also responds tactically to energy markets. CEO Kunal Girotra told me Lunar AI saves its users money by monitoring their home 24/7 and making decisions to charge, not to charge, or discharge so that they save the most money.
“Utilities are all moving to almost-real-time changes of rates,” he said. “You need software to handle that for you. I think that the race is on for who has the best AI machine learning algorithms to save the most amount of money. And so far, we seem to have a head start.”
Lunar’s first-generation system focused on generation, storage, and control. In other words, it connected elements like a home’s rooftop solar panels with the backup battery the residents might keep in the garage, using the AI to decide when to meet the home’s real-time energy needs with solar versus grid energy versus stored power. What it didn’t have was the ability to work with electric vehicles to manage charging and use the car’s battery as a bonus source of energy.
To fix this, Lunar has built its own bidirectional EV charger — one that can charge up the battery or discharge the car’s battery for a secondary use, like backing up the home’s power supply. Girotra, formerly the head of Tesla Energy, told me the problem with that functionality to this point has been the connection point between the car and the home electrical system. Carmakers and other companies in the space didn’t have the deep experience with electrical certifications to make the process seamless, he tells me. That led to setups like the original Ford Charge Station Pro, which required several different wall-mounted electrical boxes to connect the F-150 Lightning EV to the home.
Lunar’s charger is built to connect to its customers’ existing home Lunar energy system, which includes a microgrid interconnect device they call Lunar Bridge that islands the home in case of a power outage on the grid. In that way, the power stored in the EV battery is ready to back up the home in case of a blackout without any additional work — or to be optimized as part of a fully smart home that’s making money as part of a virtual power plant.
The company’s setup allows for another fun feature: “slow” charging that’s not slow at all, but actually two or three times as fast as the Level 2 charging most EV owners use to recharge their batteries overnight. Electric cars in the U.S. can typically take on only about 11 kilowatts of AC power from one’s home because of the limitations of their on-board hardware. Because Lunar’s system is fully DC, however, Girotra said the company decided to build a DC home charger, one that — like a Tesla Supercharger or other DC fast chargers out in the world — isn’t limited by that power cap. Lunar said it could use a combination of power from the grid, home solar, or home batteries to charge an EV at up to 25 kilowatts. That’s enough to recharge an EV in three to four hours rather than six to eight.
“If the standards get high, and if everybody sees cars can get charged in three hours, then all of a sudden people are like, ‘Wow, this is how I want it,’” he said. “Especially for 25% of the users who are like me, who always are running low on charge and they don’t mind a boost every now and then.”
Some of the other improvements in the second-gen system are more incremental. An inverter that’s 40% more powerful helps Lunar get its system up to enterprise scale. That’s crucial, as the world moves toward a place where more homes and businesses employ battery backup systems. Lunar’s new batteries come in modular 5 kilowatt-hour blocks ranging from 10 kilowatt-hours to 30 kilowatt-hours in a single unit and scale up to 300 kilowatt-hours for home or small commercial use; there’s also new pad-mounted configurations with capacity up to 1 megawatt-hour.
Batteries, though, are the simple part. Everyone from EV makers like Rivian to utilities like Octopus Energy is racing to make a person’s or a business’s batteries and solar panels and electric cars work for them, using the power of AI to account for moment-to-moment changes in energy prices and supply. Lunar’s new tech makes the case that the most important element is a single brain to integrate every last smart, electrified thing in your house.
The fundraise comes on the heels of a $50 million grant from the Department of Energy.
Almost all lithium-ion batteries on the market rely on graphite for their anodes, more than 90% of which is processed in China. That concentration has created a chokepoint in the Pentagon’s supply chain as the military increasingly turns to batteries to help its transportation network operate more quietly and reduce reliance on complex refueling logistics.
So when Congress passed the latest National Defense Authorization Act at the end of 2025, barring Chinese-linked battery materials from military use starting in 2028, Coreshell saw an opening. While the California-based silicon-anode battery startup had previously focused on automakers as its beachhead customers, it’s now shipping its first battery cells to the military for use on Navy ships and Army ground vehicles. On Wednesday, Coreshell announced a $30 million Series B to scale up manufacturing operations to meet the needs of this growing customer base.
“We’re entering a new stage where we’re no longer, I would say, demand limited,” Coreshell’s CEO Jonathan Tan told me. “This year we’ve had to put on second and third shifts, work nights and weekends, just to get the product out the door.”
Coreshell sets itself apart by going a step further than the NDAA requires. The law doesn’t make suppliers trace battery materials all the way back to the mine, which would be exceedingly difficult given China’s dominance across the battery supply chain. But Coreshell has nevertheless eliminated Chinese sourcing from its anodes by replacing graphite with silicon mined and refined in the U.S. by Ferroglobe, one of its Series A investors.
Ferroglobe and global investment firm Access Industries led the latest round, with defense contractor ADS also joining as a new strategic investor. The financing comes on the heels of a $50 million Department of Energy grant that Coreshell secured in August as part of a program to strengthen the domestic battery supply chain. That funding will support the company’s first commercial-scale facility, a 2-gigawatt-hour factory.
That’s about 20 times the size of the 100-ish-megawatt-hour plant the startup had originally envisioned, as the DOE grant has allowed Coreshell to “expand much further than we were originally expecting,” according to Tan. The company is now evaluating several potential U.S. sites and expects to announce its selection early next year. For now, it relies on unnamed contract manufactures, along with its small pilot line in San Leandro, to produce its cells. But once the gigafactory gets up and running, the startup plans to bring electrode production in house by 2028, followed by full cell assembly in 2029.
Building this plant will ultimately require significant additional capital. But Tan believes this latest vote of confidence from the federal government will help Coreshell to diversify its capital stack as it continues to fundraise. “That’s one of the great things about having such a notable DOE award is that it also allows us to attract multiple forms of capital,” he told me.
Silicon has long been recognized as a promising alternative material for battery anodes, as it can store far more energy than graphite. The catch is that it tends to swell during charging, causing it to break down quickly and ultimately leading to a much shorter cycle life. Coreshell says it’s extended its anode’s lifespan by giving it a proprietary coating, which Tan told me back in April essentially means “painting the inside of your battery” with an ultra-thin protective layer.
Other companies, such as Sila Nanotechnologies and Group14 Technologies, are also working to commercialize silicon anodes. But Coreshell says many of its competitors rely on more highly engineered, expensive forms of silicon, such as silane gas. By contrast, Coreshell uses metallurgical silicon, a cheap, raw commodity already widely used in aluminum alloys. That, Tan argues, gives the company a cost advantage not only over its competitors, but potentially Chinese graphite too.
Coreshell hasn’t yet demonstrated that its cells can meet the performance demands of the automotive industry, however. When the company raised its Series A in early 2025, it said it expected its automotive cells to exceed 1,000 charge cycles while retaining 80% of their original capacity. But Tan told me many defense applications don’t require such demanding performance targets, as Navy ships and ground vehicles are “not intending to have as many miles or missions or use cases on that same battery” as a consumer EV would.
That doesn’t mean the company is abandoning its automotive ambitions. As Tan pointed out, electric vehicles remain by far the largest source of global and domestic battery demand. “It’s natural for us to obviously utilize the security supply chain first,” he told me. “That allowed us to really get to commercialization, revenue, and production faster, because automotive qualification is this longer journey. But ultimately, we want to do both of those and more.”