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We’re worse off than ever — but on a better track.

What a strange time to be thinking about climate change. I can remember few previous moments where the danger of the climate threat was as apparent — or as inescapable.
A massive heat wave has covered much of the Northern Hemisphere, sending temperatures from Beijing to New York to Rome into the 80s or 90s. Phoenix, Arizona, has just recorded — for the first time ever — 19 days in a row with a high above 110 degrees Fahrenheit. On Sunday, a weather station in western China recorded that country’s all-time hottest temperature: 126 degrees Fahrenheit. Wildfires are raging across southern Europe and northern Canada.
Nor is the land alone aflame. The oceans have set an all-time heat record, smashing the previous record set in 2016 and continuing to meander higher. The Atlantic Ocean is particularly stricken: The water near southern Florida, normally in the mid-80s at this time of year, has reached a stunning 98 degrees.

But this is only a symptom of a broiling year. Last month was the warmest June ever measured, and 2023 is now more likely than not to be the warmest year ever measured. The nine hottest years on record are now the most recent nine years. If 2023 sets the all-time record, we will go 10 out of 10.
Even the stranger symptoms of climate change are becoming apparent. Scientists have long warned that as the climate warms, the atmosphere will hold more moisture, potentially turning what were once “normal” rain storms — summer thunderstorms that did not originate as a hurricane or tropical storm — into torrential downpours. Well, a series of normal seasonal storms just deluged the Northeast, flooding Vermont’s capital and paralyzing regional travel. On Sunday, six inches of rain fell in less than one hour in Bucks County, Pennsylvania, killing five people. Although these extreme events have not been directly attributed to climate change, they are exactly what climate scientists expect to see more of as global warming continues.
The effects of climate change are becoming unavoidable, omnipresent. In Washington, D.C., where I live, we are locked in a particularly perverse summer pattern where the air will either be extraordinarily hot and humid (because a south wind is blowing) or cooler but filled with toxic wildfire smoke (because a north wind is blowing). There is, in other words, no respite from climate impacts for the next several months: We get extreme heat or dangerous air.
It is shocking, astonishing, almost unreal. The MSNBC anchor Chris Hayes has compared these weeks to the moment in the film Don’t Look Up, when a comet, bound for a collision course with Earth, first appears in the night sky. The thing that we — in the broadest definition of we — were warned about has arrived. It is all the worse for the fact that, in all likelihood, this is one of the chillier summers of the rest of our lives.
And yet — although this may strike some readers as delusion — I will be honest that I am not filled with despair. In all honesty, I felt far worse about our ability to address, deal with, and adapt to climate change last summer. My mood was blackest almost exactly a year ago.
Perhaps you have forgotten. For more than a year, Senator Joe Manchin had been negotiating with Senate Majority Leader Chuck Schumer over a capacious spending package called “Build Back Better.” It was a messy and frustrating thing to watch. Manchin could be a fickle negotiator, backing programs one day only to renege the next, but Schumer too sometimes seemed incapable of understanding Manchin’s demands.
Then, on July 15, 2022, Manchin abruptly pulled out of the talks. It seemed like the effort to pass a reconciliation bill had fallen apart. For the third time in as many decades, the Democratic Party — and specifically the Senate — had blown its chance to pass a climate law. The United States would remain the global laggard, if not the antagonist, of the fight against climate change.
And I despaired. Even though I had reported on climate change for eight years, the outlook then seemed worse than during any moment of the Trump administration. At least during that farce of a four-year term, one could point to hopeful signs in the real economy — like the rapid growth and falling cost of renewables — and wonder if decarbonization might eventually win the day.
But Manchin’s betrayal was an irreversible defeat, one that would condemn the United States to a backwater and retrograde role in the global energy system. China and the European Union, it seemed to me, were now set to dominate the renewable and electric vehicle industries while their American competitors fell behind. As an American who wished to see his country play a positive role in the climate fight, that mortified me; as an American who had to live in the United States, it scared me. Oil and gas companies would now deepen their influence over national politics, I feared, turning America into the world’s most powerful petrostate. Manchin, almost single-handedly, had set back the global climate fight almost a decade and locked in millions of tons of dangerous, wasteful carbon pollution.
And then a miracle happened — one so familiar to us now that perhaps we have forgotten how astonishing it seemed at the time. In those final weeks of July, Manchin — motivated, perhaps, by the wave of popular revulsion that greeted his initial withdrawal — had secretly restarted negotiations with Schumer. On July 27, the two men unveiled a new deal on climate, healthcare, and taxes. The ever-canny Manchin christened it “the Inflation Reduction Act.”
More miracles, now. The Senate — the long-standing enemy of global climate policy, the legislative body that had euthanized climate bills in the 1990s and 2010s — quickly passed the IRA. The House of Representatives galloped behind it. Biden signed it into law. And suddenly, for the first time in my life, the United States had something approaching a climate policy.
As the one-year anniversary of the IRA approaches, we’re going to see many reflections on how the law is going. (I’ve already written one.) Is the IRA working?, we’ll ask. Will it decarbonize the economy fast enough? What other policy do we need?
Those are crucial questions — and questions that this publication was founded to cover. But I hope we can remember how astonishing it is that the IRA exists at all. In November 2016, in March 2020, in November 2021 — even in July 2022 — I was not certain that America would ever pass a climate law.
From 1990 to 2022, the defining and unavoidable fact of American climate policy was that it barely existed. That is — somewhat unbelievably to me — no longer the case. It cedes neither perfection to the IRA nor improper deference to the Biden administration to say that it is okay to feel pretty good about that. Progress is possible. The one sure thing about the status quo is that it will change.
And it will change again. In the coming years, America will discover what much of the world already knows, which is that decarbonization is an extraordinarily difficult task. It will be grueling as a political question, as a policy question, as economics, as engineering, as techne. Meticulous mineral, industrial, and agricultural supply chains must be spun up at the same time that others — primarily the fossil-fuel industry, but also the global steel and cement complex that breeds humanity’s environment — must be profoundly reformed or shut down.
And climate change’s impacts — many times worse than this summer’s — will keep afflicting us. Scientists have warned for 20 years about the “hockey stick” rise of global temperatures, but as the writer Tim Sahay has put it, we are about to get whacked by that hockey stick, over and over and over again. It will hurt. Future political ruptures and defeats are coming, too, perhaps even more dreadful and deadly than those of the 2000s or 2010s.
But when and if those calamities surround us, I will want to remember that progress is possible, and that we can be as astonished by grace and rescue as by anguish and peril. Years ago, I read about a newspaper headline that announced the outcome of the Battle of Gettysburg. “TREMENDOUS VICTORY IN PENNSYLVANIA,” it said, and then, below: “Reverent Gratitude of the People.” Reverent gratitude — not a phrase that climate writers use too often, and not one that I would ever use to describe a politician. But when and if humanity triumphs over climate change, and brings our little biosphere into a peaceful and teeming bounty, I do think we will feel a reverent gratitude — for what we will have learned, for what we will have done, and for what we will have averted. And on that day, a billion anonymous heroes will have helped secure that victory, and a trillion contingencies will have whispered it into being.
Here in the Northern Hemisphere, the day is searing and the rains are agonizing. The way before us is long and darkening. If you find yourself surprised by gratitude, hold fast to it.
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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.”