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The senator from West Virginia is retiring. Who will we think about now?

What can you say about Joe Manchin, perhaps the most important — and most complicated — American climate policy maker of the past decade?
Let’s start here: Soon, he won’t be a senator any more. On Thursday, Manchin announced that he will not pursue re-election in West Virginia in 2024.
“I’ve made one of the toughest decisions of my life and decided that I will not be running for re-election to the United States Senate,” he said in a video message. Instead, he said, he will be “traveling the country and speaking out to see if there is an interest in creating a movement to mobilize the middle and bring Americans together.”
We don’t have many details about what “mobilizing the middle” might look like; Manchin was recently said to be considering a third-party presidential run. If he did make a go for the White House, that would seemingly have disastrous consequences for Joe Biden’s re-election effort — and, in all likelihood, for climate action generally — because it could probably hand the 2024 race to Donald Trump.
But pending that possibility, Manchin’s decision immediately reframes several aspects of next year’s elections.
It means, first, that West Virginia Governor and serial coal-mine-safety violator Jim Justice will likely win Manchin’s seat, marking the end of a tectonic political realignment that saw the state go from solidly Democratic to solidly Republican.
Without West Virginia, Democrats’ path to a Senate majority now looks more like a tightrope: It requires Democrats to hold difficult seats in Ohio, Montana, Pennsylvania, and Arizona. Then the party needs to win in one additional state. But the pickings are slim. Are Texas or Florida really going to elect a Democrat to the Senate? Is Mississippi, Missouri, or Nebraska?
Manchin’s decision will, in other words, have big implications for what Democrats can and cannot do in government. Without a working Senate majority, Democrats will struggle to pass laws or appoint justices to the Supreme Court even if they control the House of Representatives and the White House.
But, of course, Manchin’s decision is even more profound because who he is — his anxieties, whims, and cognitive biases — has long had an outsized influence on legislation. Setting aside presidents and a few jurists, there may not be a recent Democratic policymaker whose personal views more closely shaped the law.
Manchin wielded power, above all, because he represented West Virginia, the most conservative state to send a Democrat to the Senate. That meant he was his caucus’s obvious marginal member and swing vote.
And you could tell. What other Democrat could get away with owning a coal plant while ostensibly overseeing the coal industry? (Manchin is the chairman of the Senate energy and natural resources committee.) What other Democrat could demand last-minute changes to an economic recovery package?
Manchin’s crowning legacy will be the Inflation Reduction Act, which is often described as “President Biden’s signature climate bill,” but which is smudged with Manchin’s fingerprints, too. As chairman of the Senate energy committee, Manchin had a good deal of de jure authority over the law; as the Senate’s swing vote, he had even more de facto power. The final bill text was hammered out in negotiations between Senate Majority Leader Chuck Schumer’s team — who were essentially negotiating on behalf of the rest of the caucus — and Manchin’s team.
You can see it in the law’s final policies.
Some of the Inflation Reduction Act’s most generous subsidies will go to the nascent clean hydrogen industry, which Manchin has long nurtured. If hydrogen becomes an anti-environmental boondoggle on par with ethanol, then Manchin will bear a good deal of the blame; if it decarbonizes the American industrial sector, he should get some credit.
Likewise, Manchin is why the bill’s tax credits for electric vehicles do not incentivize union membership.
He is behind the law’s peculiar rules about exactly which industries and organizations can claim their subsidies as direct cash payments. He also shaped the design of its carbon-capture tax credits.
If there is something distinctive in the IRA, the odds are good that Manchin either insisted on it, approved it, or didn’t notice it.
But Manchin drove other climate and energy policy too. He cowrote the bipartisan Energy Act of 2020 with Senator Lisa Murkowski of Alaska. That law focused the federal government’s industrial policy on carbon management, clean hydrogen, and critical minerals — some of the same topics that would dominate the IRA. It also expanded the powers of the Loan Programs Office, the Department of Energy’s in-house bank.
He criticized the Environmental Protection Agency and sometimes voted to overturn its rules. He consistently opposed carbon taxes or pricing carbon in any way, all but ensuring the idea’s political death in the short-term. Even his Senate career more or less began with him taking aim — literally — at Obama’s climate bill. During his first race for Senate in 2010, Manchin ran a TV ad in which he shot a rifle at a stack of papers labeled “cap and trade bill” and promised to take on then-President Barack Obama’s proposal.
In short, if you thought about climate policy over the past decade, you wound up thinking quite a lot about the likes, dislikes, and peculiarities of Joe Manchin. What he might support or oppose mapped the frontier of political possibility in the United States. He was, in short, potentially the most influential force in shaping American climate policy during the 2010s. (Only Mary Nichols, who has been California’s chief air-pollution regulator since 2007, might match his importance.)
My first thought is that Manchin may soon join that list of capricious ex-senators — Joe Lieberman and Ben Nelson come to mind — whose names, once synonymous with power itself, become the answer to bad trivia questions. But I have been thinking about Joe Manchin, 76, for a long time, and I expect to find it a hard habit to break. He is an ambitious, eccentric, and preternaturally lucky man. I suspect his next few decisions will prove even more important than those that have come before.
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France’s deadliest heat wave since 2003 killed more than 2,700 people — and possibly as many as 5,700.
More than 5,700 excess deaths were recorded in France during this summer’s record-breaking heat wave, the country’s health agency announced today. That makes the event — which ran, by the official reckoning, from June 17 to July 2 — the country’s deadliest heat wave in more than 20 years.
That’s in line with other estimates we’ve heard. EuroMOMO, a network of European public health agencies that track excess mortality, found that the continent saw more than 10,000 excess deaths during the same period. Roughly 90% of those victims were older than 65, it said. (France’s cohort seems similar: Adults older than 75 made up about two-thirds of the victims, the government said.)
These numbers are staggering — and much larger than some astute Heatmap readers might anticipate. If you read my colleague Jeva Lange’s piece on why it’s so hard to estimate heat deaths last week, she cited a much smaller estimate: Roughly 2,700 died in France during the most recent heat wave. That tally came from Christopher Callahan, an Indiana University scientist who studies climate change’s economic and social costs.
Why is there such a gap between the figures? I emailed Callahan to find out. He shared a few thoughts. First, he uses a different (and theoretically more rigorous) method than the French government: “Our approach uses a statistical relationship between temperature and mortality to explicitly quantify how many additional deaths are associated with a given day’s temperature,” he wrote. “France’s report of excess deaths is just based on how many more people died in late June compared to previous Junes - but we don’t know if those people died because of the heat or some other factor.” (Carbon Brief recently published a Q&A on these varying approaches.)
That might mean his estimate is right, in which case France has misidentified roughly nearly 3,000 deaths. But it could also mean his model, which is trained on data from 2004 to 2019, is “missing something,” he said, like a post-Covid change to public health risk. Last year, Callahan and his colleagues used a similar model to estimate deaths from France’s worst-ever heatwave, a 2003 episode that overwhelmed morgues and killed about 16,000 people. Even 23 years ago, global warming helped make that disaster larger than it needed to be: Some 6,000 of those deaths were due to climate change, their paper found.
Either estimate of the 2026 heat wave, of course, is shattering. As Jeva wrote, even the lower figure would mean the 2026 heat wave killed as many people as died in three years of French homicides. But the divergence in estimates tells us something else too: Even as climate change breaks records and alters our world, we’re never going to quite agree on where it ends and normal randomness begins.
The AI data center boom does not seem close to ending. Google’s parent company, Alphabet, announced its second quarter results this evening, and it beat Wall Street’s expectations, nearly quadrupling its profit on a year-over-year basis. Among the drivers: Its cloud business grew 82% compared to the same quarter last year. (As I’ve written, that rapid growth is helping to turn Alphabet and other hyperscalers into light industrial firms.)
The company’s AI bets seem to be paying off so far — so Google is now planning on spending even more on data centers, energy infrastructure and AI development this year than it once anticipated. It raised its estimates of 2026 capital expenditure to $195 billion to $205 billion, which is above earlier projections and twice as much as it spent in the same category last year. 2027 could be even bigger, it signaled. The company’s shares fell slightly on the news in after-hours trading, but from an energy and climate wonk perspective, the message is clear: For now, the AI demand surge transforming the power sector — and the real economy — continues to chug along.