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Five years from the emergence of the disease, the world — and the climate — is still grappling with its effects.

Five years ago this month, the novel coronavirus that would eventually become known as Covid-19 began to spread in Wuhan, China, kicking off a sequence of events that quite literally changed the world as we know it, the global climate not excepted.
The most dramatic effect of Covid on climate change wasn’t the 8% drop in annual greenhouse gas emissions caused by lockdowns and border closures in 2020, however. It wasn’t the crash in oil prices, which briefly went negative in April 2020. It wasn’t the delay of COP26 and of the United Nations Intergovernmental Panel on Climate Change’s Sixth Assessment Report. And it wasn’t, sadly, a legacy of green stimulus measures (some good efforts notwithstanding).
Rather, it was in the way the world’s governments (especially the largest and most powerful) responded to the virus, which undermined the very idea of multilateralism, climate action included. This took place along three main vectors: inertia on global financial rules, even as long-acknowledged failings turned catastrophic; a renaissance in industrial policy that may prove transformative for domestic fiscal policy; and, at the intersection of both, deterioration of what we might call geopolitics or “global solidarity.”
Evidence of this phenomenon can be found in nearly every aspect of the global order. The World Bank in October pointed to Covid as chief among a “polycrisis” of “multiple and interconnected crises occurring simultaneously, where their interactions amplify the overall impact.” Development gains have almost slowed to a halt. Extreme poverty has increased overall in low-income countries since 2014, after decades of improvement, according to the World Bank’s analysis.
None of this, however, was an inevitable effect of Covid. Poor countries got poorer, for the most part, because of norms and hard rules in global finance that they have little control over — what a group of researchers last year termed “financial subordination.”
To understand why, a brief history: Developing countries during the 2010s were seeking new avenues of finance as traditional sources like multilateral development bank loans, official development assistance, and commercial bank loans waned. Many turned to the U.S. dollar sovereign bond markets, and also to China; a few countries also turned to commodity traders like Glencore and Trafigura, taking on opaque debts to be repaid with their own oil and other commodities.
When the pandemic response shut down many kinds of economic activity in 2020, what World Bank researchers called a “fourth wave” of debt followed. After a continuous series of debt surges from 1970 to 1989, 1990 to 2001, and 2002 to 2009, global debt markets had been relatively stable for the preceding decade. What was different about this fourth wave was that it was largely in developing countries.
With Covid, the fourth wave turned into a tsunami. Countries everywhere were paralysed by the pandemic, but the poorest ones lost critical revenue from tourism, remittances, and some exports. On top of that, they suffered the same lockdowns and illness that depressed local economic activity and drained government budgets in many countries. Unlike rich countries, developing countries had limited ability to dip into reserves or raise money from the bond markets to keep their citizens safe and tide over those who lost work.
Wealthy countries and lenders did little to ameliorate this stress. A “Debt Servicing Suspension Initiative” facilitated by the G20 provided some relief for 46 countries; China participated, too, granting deferrals to some of its debtor countries. But private bondholders (who were earning returns as high as 9%) and multilateral banks did not. The debts still had to be paid, and by 2023, aggregate net capital flows were negative for developing countries — that is, more money flowed from poorer countries to richer ones than the other way around.
Numerous governments defaulted on their debts in the wake of Covid, including Ghana, Sri Lanka, Zambia, Ethiopia, and Suriname. But perhaps just as bad, many, many more countries continued to pay their debts by slashing their health and social welfare budgets just as they were needed most. Low- and middle-income countries spent more on debt servicing in 2022 than they spent on health in 2020, during the height of the pandemic.
Tensions between the U.S. and China, meanwhile, became even more overt around Covid, helped in part by accusations and recriminations over the source of the disease. The two great powers were themselves deeply changed. China emerged from its Covid Zero measures with public discontent at a nearly unprecedented pitch and its engines of economic growth — domestic infrastructure and residential property — faltering as vast local government debts became unmanageable. The country’s central government renewed its focus on an export-led growth model, but this time instead of cheap, low-tech consumer goods, it was semiconductors, solar panels, and electric vehicles.
It quickly became clear that the Biden administration would not be much less hawkish towards China than Trump’s was. It largely focused inwards, on tackling the disenfranchisement of formerly solid Democratic working class constituencies that Trump had exploited and Covid deepened. These were largely seen as an outcome of untrammelled free trade — especially with China. But Covid lockdowns and the rush to regain normalcy in the re-opening choked complex supply chains and logistics networks, driving up prices around the world and helping to spark a global inflation crisis that has yet to meaningfully abate in many parts of the world.
When Russia invaded Ukraine, energy prices shot up, particularly in those countries reliant on imported oil and natural gas. This shook the global fossil energy economy. Exports of liquified natural gas by the United States to Europe skyrocketed, as European countries desperately sought alternatives to Russian piped gas. Those same desperate Europeans also bought LNG shipments that had been bound for countries like Bangladesh and Pakistan, outbidding the poorer countries which then endured blackouts and further hits to their financial reserves as they struggled to match the new EU price.
Global energy price rises compounded the Covid supply-chain pressures and monetary policymakers decided hiking interest rates was unavoidable. While Russian troops tried to capture Kyiv in March of 2022, the U.S. Federal Reserve — perhaps the most powerful U.S. entity for the rest of the world — began hiking interest rates, taking them from just a quarter of a percent before the invasion to more than 5% by mid-2023. This strengthened the U.S. dollar, heaping more pressure on developing countries trying to pay dollar-denominated debts. Meanwhile, in rich and poor countries alike, the jump in living costs has helped drive backlashes against incumbents, and a surge in far-right populism.
Perhaps years ago, if we’d known that we’d see a spike in temperatures, droughts, and storms alongside a flood of cheap solar panels and EVs, technological breakthroughs in batteries, and a renewed interest in industrial policy, it might have seemed that more urgent climate action was assured. Instead, divisions have worsened. The agreement text from this year’s United Nations climate conference is actually slightly watered down from the last year’s statement on fossil fuel phaseout. A special conference on biodiversity Cali, Colombia, finished last month only when delegates had to catch flights home, and a desertification conference hosted by Saudi Arabia finished this month with no group statement.
Rachel Kyte, the UK special envoy for climate change, told an event hosted by the Overseas Development Institute think tank that even as it approached its 10-year anniversary, the 2015 Paris Agreement was more fragile than it had ever been. Countries like the UK, she said, had been inflicting “paper cuts” on developing countries for so long that the ill will was becoming impossible to wave away.
“[W]e’ve also cherry-picked which international laws we want to stand behind and then, which conflicts we believe the international law is important for and not,” she added. “And you sit in the climate negotiations and they know that you know that they know that you know.”
And yet a hopeful note sounding out of all of this has been the central role of clean energy in many countries’ responses to the increasingly fractious global landscape. Responses to Covid, as chaotic as they were, demonstrated that governments can take decisive action. Although the vast majority of Covid stimulus was climate-neutral at best; about a trillion dollars’ worth of investments really were green. Efforts to boost cycling gained ground in some cities, including in Paris, where bike trips now outnumber car trips in and around the city center.
Renewed interest in energy security sparked by the Ukraine invasion has been largely supportive of clean energy. Europe’s combined wind and solar generation rose 10% in the first year after the invasion as the bloc made its emissions reduction target more ambitious. Green industrial policy introduced by the Biden administration has encouraged other countries to see decarbonization as a competitive opportunity rather than an obligation. And China’s doubling down on its manufacturing of the “new three” — batteries, EVs, and solar panels — has created an oversupply that spurred rapid uptake of clean energy in many countries.
Fractures, however, are rife. Too many countries have steep tariffs on clean energy imports preventing them from taking advantage of cheap Chinese components, adding to other barriers to clean energy generation, such as the restrictive planning rules in Japan, where renewable energy generation lags; even wind power, where the country has ample potential, was virtually flat for the decade to 2022. Tariffs on imports to the U.S., while helping to build a domestic industry, also slow the rate of deployment. Globalized supply chains tend to be cheaper; a study in Nature estimated that they saved the U.S. up to $31 billion in the 12 years leading up to 2020, while China saved up to $45 billion, compared to a scenario in which domestic suppliers were prioritized. Even with its rapid expansion in clean tech manufacturing thanks to the Inflation Reduction Act, it will take years for the U.S. to catch up to China’s capabilities, while in the meantime, tariffs will slow down installations.
For those in wealthier and more powerful countries, there’s at least a chance of political shift. For countries under financial subordination, there are hard limits to what can be achieved.
Geopolitical alignment is an increasingly sensitive question for countries trying to avoid the pitfalls of appearing to be too close to either China or the U.S. Auto manufacturing has become the site of intense competition and tension, with the U.S. and EU putting punitive tariffs on Chinese EV imports to compensate for “state subsidies.” The introduction of the European carbon border adjustment mechanism this year, which penalizes high-carbon imports so they don’t undermine the continent’s carbon pricing regime, has introduced a new source of tension around trade, particularly for African countries that rely on exports to Europe and are nowhere near having their own carbon accounting scheme that is a prerequisite to avoiding the surcharges.
We may only know in retrospect, but the supply bottlenecks and inflationary surges associated with the Covid lockdowns and reopenings may have been a kind of masked transition phase into a new, more permanently supply-constrained world. Researchers at Potsdam Institute and the European Central Bank published new research in March showing that climate change impacts will raise general inflation by more than a percentage point by 2035.
The damage could be seen in the recent COP29 in Azerbaijan. Trust was close to an all-time low over negotiations for a new target for finance flows from wealthy to poor countries. After it ended with a controversially low $300 billion target, Fiona Harvey of the Guardian called it the second worst COP of the 18 she’s attended, surpassed only by the disastrous 2009 COP15 in Copenhagen, which ended with no agreement at all. It can also be seen in the rebound in emissions since 2021.
While some hopeful shifts have emerged from the Covid era, the increasingly febrile global atmosphere risks endangering our already slim chances of protecting the habitable atmosphere. As climate impacts worsen, pushing back on that axiom will be more difficult, but more urgent. Combating climate change is such a monumental undertaking that collaboration – in technology, manufacturing, knowledge, and diplomacy – will be vital.
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Europe’s heat wave has finally ended — and good riddance. The continent recorded at least 1,300 excess deaths over the past week, according to the World Health Organization. Mortuaries in Paris and other cities were overwhelmed.
North America will now get its turn with summertime heat: At the end of this week, New York, Philadelphia, and other cities down the East Coast — including several where World Cup knock-out games will be played — could see their hottest temperatures since 2012.
As I wrote last week, these bouts of extreme heat are caused by climate change. Severe and record-breaking heat waves are one of anthropogenic global warming’s clearest and most indisputable symptoms.
But as I also wrote last week, Europe and North America have very different ways of dealing with extreme heat. Most Americans have air conditioners, but they remain rare in Europe — and especially in northwestern Europe, including France, Germany, and the United Kingdom.
Since last week, I have read countless explanations about why Europeans don’t have air conditioning at the same rates as Americans — or even Canadians. Perhaps Americans and Europeans have a different relationship to suffering, goes one theory, or maybe the European left has managed to politicize air conditioning in a way that the American left has never tried to do. The cultural divide here is more real than I once would have thought: In Paris, the deputy mayor chided Americans for even asking about Europe’s AC use; she argued air conditioning “contributes and aggravates” to air pollution and climate change. In Florida, meanwhile, we name elementary schools after the inventor of mechanical refrigeration.
Throughout all of this, I’ve assumed that Europeans would purchase air conditioning as the warming climate demands it. Much like the Pacific Northwest, where AC adoption lagged the rest of the United States for decades, much of Western Europe used to enjoy a climate where AC was unnecessary. That changed in Oregon, Washington, and British Columbia after the 2021 heat dome. Now that summertime highs are rising in Europe, too, it seemed obvious that people would go out and buy window unit air conditioners — and where they can’t buy them because of local laws, they’ll push for reform.
It had not occurred to me, though, that a simpler obstacle might be blocking Europe’s adoption of AC. Jonas Nahm, a professor of industrial strategy at the Johns Hopkins School of Advanced International Studies, wrote in with a question: What if it’s the windows?
Do you know about Europe’s superior windows? Unlike the United States, where most of our windows hang on a sash and open vertically, the dominant form of window in Germany, Austria, France, Italy, and the rest of the Blue Banana are tilt-turn windows. This distinctive form of fenestration has a dual-action hinge, meaning it can tilt, opening at the top to let in light or air; and turn, swinging fully open on its hinges.
Tilt-turn windows are superior in most respects to our American sash windows or casements. Because they close more securely, they provide better protection against the elements; because you can swing them into a room and access both sides of a pane, they are easier to clean; and because you can tilt them from the bottom and crack them open at the top, they can ventilate a room without creating a draft. They are also ubiquitous in western Europe. Asked once what Germany meant to her, Germany’s former Chancellor Angela Merkel replied: “I think of well-sealed windows. No other country can make such well-sealed and nice windows.”
They are superior in all respects, I would say — except for one. When Americans in older buildings want to get an air conditioner, we go and buy a window unit, then we slide up the sash window and install it. But tilt-turn windows are not so accommodating. Those who have them must instead go and buy a portable AC unit that sits entirely inside a room, snake its hose out the top of the window, and then either purchase a fabric barrier or jerry-rig towels to seal off the crevices.
If you can’t buy a window unit, in other words, then your air conditioning options narrow. You either have to install an unsightly portable AC unit. Or you have to retrofit your entire home and install mini-splits — a far more expensive renovation that may not even be possible in historic or rental buildings.
Can windows alone explain Europe’s differing approach to air conditioning? It certainly explains a gap I’ve noticed in the discourse, where some Europeans seem to see air conditioning as an exorbitant luxury and Americans see it as, well, just another $250 purchase. It matters, too, that most Europeans heat their homes with radiators, meaning there is no forced-air ductwork system that a central air system can piggyback on. (Of course, my 100-year-old apartment building has radiators, too — but we have sash windows, and therefore window units.)
As it happens, I’ve lived in a home in the United States that had tilt-turn windows. An old German landlord of mine installed them in about half the house. We had window units too, but we stuck them in the few rooms that still had sash windows.
But of course, maybe what you don't have always seems more exotic to you. Not so long ago, I found myself in a smoky Berlin bar talking with a German about how much I liked and respected their windows. My companion was confused and asked me what windows were like in America, and I pantomimed opening a sash window and sticking my head out the bottom.
He was thrilled. Wait, he replied, just like in the movies?
I promise tomorrow's newsletter will not be about windows or air conditioning.
Monday’s Supreme Court decision will give Trump sweeping powers over the agency he already effectively controls.
The Supreme Court on Monday morning effectively OK-ed the firing of commissioners at independent agencies with no showing of cause, overturning a 90-plus-year-old precedent and granting the president seemingly vast powers to reshape the federal regulatory state. That likely includes agencies crucial to energy planning and governance, including the Federal Energy Regulatory Commission and the Nuclear Regulatory Commission (though not, notably, the Federal Reserve Board of Governors).
Harvard Law School professor Ari Peskoe argued in an amicus brief for the case alongside a bipartisan gaggle of 11 former FERC commissioners that deciding in the president’s favor on this case “would bulldoze the structural supports that Congress built into ratemaking commissions to protect its price-setting power from abuse,” protections that “foster regulatory stability for industries investing in essential infrastructure.”
So what’s left of that stability following the Supreme Court’s decision? “It’s been 3+ hours and the President has yet to fire a FERC Commissioner. So no immediate effect,” Peskoe told me in an email.
The case stemmed from Trump’s firing of Rebecca Slaughter, a member of the Federal Trade Commission, because her presence on the Commission would, he said, be “inconsistent with my Administration’s priorities.” Slaughter sued to be reinstated under a precedent established in the 1935 case Humphrey’s Executor v. the United States, in which the Supreme Court ruled that the Constitution did not give the president “illimitable power of removal” over government officials. On Monday, the court disagreed, deciding instead that the President should have wide discretion over the composition of agencies like the FTC, which “unquestionably exercises executive power and must therefore be controlled by the Chief Executive,” Chief Justice John Roberts wrote in his opinion for the majority.
In her dissent on the decision, which split 6-3 along the usual partisan lines, Justice Sonia Sotomayor listed FERC and the NRC as among the “dozens of independent commissions are now likely to become purely executive agencies, shifting tremendous power over broad swaths of American life into the President’s hands.”
Agencies like FERC tend not to be as explicitly politicized or partisan as, say, the Environmental Protection Agency, which is led by a single administrator who serves at the pleasure of the president, or the National Labor Relations Board or Federal Election Commission, which oversee areas of law and policy with stark partisan and ideological stakes. This is partly because FERC justifies decisions on electricity and natural gas policy with reference to “technical expertise,” Peskoe’s fellow Harvard Law School professor and former Obama White House official Jody Freeman told me. (If you have any doubt about this, go read through some 1,000-page-plus FERC orders.
FERC also tends to be more collegial than most other independent agencies. Meetings often include encomia to the agency’s chair for being consensus-oriented, and to its staff, who serve commissioners from both parties. Its recent “show cause” orders directing regional electricity markets to prove they’re taking steps to speed up grid interconnection for large new sources of demand garnered a 5-0 majority, with both Democrats on the Commission voting along with their Republican colleagues.
And FERC chairs do occasionally defy the presidents who have appointed them, most notably in Donald Trump’s first term, when then-Chair Neil Chatterjee dismissed Secretary of Energy Rick Perry’s request to support coal and nuclear power plants able to store fuel on site, thus propping up struggling electricity generators.
Interestingly, Chatterjee, who signed the amicus brief to the court, was relatively relaxed about Monday’s decision’s implications for his former agency about. He observed to me in an email, “given that the commission just voted 5-0 on the WH’s biggest priority before FERC I don’t see it being an issue in the near term.”
In other words, FERC and this White House, at least, already see eye to eye.
But that’s no coincidence. Since the beginning of this term, the White House has set out to rein in and control independent agencies, FERC among them. Though Trump initially tapped sitting Republican Commissioner Mark Christie to lead the commission, he ultimately declined to re-nominate Christie for a second five-year term, leading to Christie’s exit from the commission last August.
In his place, the president installed Laura Swett, who has allowed little daylight between the commission’s and the White House’s positions. Both have attempted to keep the focus on balancing the buildout of data centers to serve artificial intelligence while keeping a lid on consumer electricity prices.
While it’s not foreordained that FERC chairs will agree with the presidents that appointed them, even if they’re both members of the same party, Monday’s decision makes disagreement more dangerous for current and future FERC chairs to consider.
“There’s a bigger risk that they’ll have to ultimately yield to political pressure because they’ll have this very overt threat that they’ll be fired,” Freeman told me. “We’re going to see decisions that look more political, that look less expertly driven, and they probably will wax and wane with every new administration, which undermines stability.”
A longtime energy analyst argues that there are no solutions to the hyperscale problem, only tradeoffs.
Sam Altman, Dario Amodei, and Elon Musk need sign-off from fewer than a dozen board members to commit their companies to multibillion-dollar moves. The power plants that supply their data centers need sign-off from 13 states (plus D.C.), thousands of generators, millions of customers, and a federal regulator whose ratemaking standard predates the personal computer in order to build anything new.
Everyone in tech knows about the CEOs of the foundational artificial intelligence labs. Only energy nerds know the names of the people running our grid operators. That anonymity is a feature, not a bug. Grid operators generally think in decades, not years. But right now, they’re telling the U.S. that it has years, not decades, to figure out its own new path forward.
For decades, this process sufficed for energy generators (and regulators) grown accustomed to gradual, predictable load growth. But over the past several years, the scale and speed of increasing energy demand has overwhelmed the supply -side’s ability to respond. The resulting strain on the grid has reverberated through every rung of the supply chain, delaying development timelines, increasing costs, and elevating energy from political conversations to dinner table discussions.
The loudest creaks and groans are coming from PJM Interconnection, North America’s largest grid operator. Residential bills in the PJM service area are climbing at a dizzying pace. Recent capacity auctions have ended with record prices, which PJM’s own market monitor blames on the explosive growth in data center power demand. Pennsylvania Governor Josh Shapiro has attempted to pressure PJM to lower its capacity price cap. Even Secretary of Energy Chris Wright has called on the Federal Energy Regulatory Commission to develop new procedures to help get data centers online faster.
David Mills, PJM’s CEO, published a 70-page report in May acknowledging that current market rules cannot keep pace with AI-driven load growth. And yet he also refused to recommend a path forward, leaving the decision to “state regulators and legislatures, to FERC, to consumers.”
The most essential grid infrastructure, he explained, “is not a price curve or a performance obligation — it is legitimacy.” In other words, what’s broken isn’t a parameter inside the capacity market, but rather the capacity market itself, along with the political conditions under which it operates. PJM calls this the “credibility trap”: high prices accurately signal that new investment is needed, but when those prices become politically untenable, government intervenes and investment stalls.
The fix, Mills writes, “requires structural choices, not just parameter adjustments.”
Mills is speaking to a deeper issue with the grid than its ability to respond to shifting market dynamics, which is that hyperscalers and grid operators are built to solve two different kinds of problems. Hyperscalers solve engineering problems with specifiable objectives, known constraints, verifiable outcomes. Engineering problems reward concentrated authority and unilateral decision-making.
Grid operators, on the other hand, solve coordination problems. The information they rely on to do so is dispersed across millions of stakeholders, continuously revised and often contradictory, and operators’ preferences are not so much known as they are revealed through deliberation. FERC’s standard for wholesale rates is not whether those rates are objectively “correct,” but rather whether the market settled on those rates through fair competition. The process does not just determine the answer, it essentially is the answer.
This construction is the category error driving the current AI-grid collision. The electricity grid is not an engineering problem with coordination problems attached. It is a coordination problem with engineering problems embedded in it. Treat it as the former and you lose all the information that gets generated in the process of market-based price discovery. You also lose all the buy-in that occurs when real people are faced with real trade-offs and have to make hard, binding choices.
Mills did lay out three possible structural paths in his May letter:
These pathways are not equivalent — unlike with an engineering problem, there are no cut-and-dried solutions here. There are only trade-offs and questions about who bears their consequences. Path C is likely the better answer, while Path A is more expedient. The gap between them is the work PJM’s constituents have to manage over the coming years. PJM may choose the wrong path, or arrive at the right one too late.
The alternative is not hypothetical. If hyperscalers aren’t willing to wait for PJM customers to decide which path they want to take (and recent history suggests they are not) they will build behind-the-meter generation, sign bespoke deals with regulated utilities, and restart dormant nuclear plants. America would be left with two grids, one for compute, one for everything else. The first will be reliable and expensive. The second will be cheaper, fragile, and stranded with the costs of the system the first walked away from. The market would lose the dispatch signal, the error-correcting price mechanism, and the legitimacy of the system that has reliably powered the Mid-Atlantic for two decades.
Economist Friedrich Hayek described the limits of humans’ planning capabilities better than anyone in his 1974 Nobel Prize lecture, using the metaphor of the craftsman shaping his handiwork versus the gardener cultivating growth. The craftsman thinks they can make a perfect tool but repeatedly runs up against the boundaries of their own knowledge, whereas the gardener learns to manage new information as it arises, tending not to the product itself but rather to the conditions that produce it.
Hyperscalers are not bad actors. They have legitimate interests and the political capital to help shape the grid’s future. But we should resist the Newtonian urge to meet unexpected, swiftly moving demand with equally swift supply. Markets and physical systems both tend toward equilibrium, but the former finds it through deliberation, not collision. Instead of trying to unilaterally craft a better grid, hyperscalers might find a better path if they work with the practitioners who already know how to garden.