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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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Plus, a look into the future of solar and wind tax credits.
Heatmap AM and Daily will be off tomorrow for the July 4 holiday, but we’ll see you back here on Monday.
We’re staring down the barrel of a holiday weekend here in the United States, so I’ll keep it quick. Two things:
July 4 will mark the formal end of the solar and wind tax credits in the United States. These incentives — which date back in some form to 1978 — were repealed by President Trump’s tax cuts and spending law last year. In order to qualify for the last of these subsidies, solar and wind projects must “commence construction” by Saturday and be ready to generate power by the end of 2027.
Although the policies haven’t yet expired, there’s already chatter about bringing them back. Some Democrats want to revive the incentives should they win back Congress and the White House in two or six years. But 2029 or 2032 will likely look different than the earlier years of this decade, when the Inflation Reduction Act was written and passed: Power prices are higher now, the grid more congested, and the federal budget more constrained. So today, my colleague Emily Pontecorvo previews one of the next big questions in climate policy: Should Democrats try to bring back the solar and wind tax credits?
Her story is great, and one disconnect in particular stuck out to me. Among the climate and clean energy wonks Emily interviewed, “everyone” agreed that “in the near term, the most important thing Congress could do to help clean energy is break down some of the non-cost barriers to development through permitting reform.” Permitting reform, after all, has no fiscal cost and could be achieved during this Congress.
But Democratic lawmakers themselves sound far less sure about its importance. “I don’t think Democrats can engage in a serious way with Republicans on permitting reform,” Representative Jared Huffman, the ranking member on the House Natural Resources Committee, tells her. Read the rest of Emily’s story for more on how lawmakers are thinking about this question, which will only get more important as we get closer to ‘28.
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We’ve begun to get Q2 sales data for global automakers — and there’s actually decent news for electric vehicles. Some highlights:
Enjoy your holiday weekend, and remember: We’re now in Q3. Thanks, as always, for reading.
And not for the first time.
The Department of Energy proposed sweeping changes to its rules for updating efficiency standards for household appliances on Thursday. If finalized, they would hamstring future administrations from issuing tighter standards that would save consumers money as higher-performing air conditioners, stoves, washing machines, refrigerators, and the like hit the market.
While the agency portrayed the move as bringing an end to appliance standards writ large, that is not, in fact, what it is doing. The proposal would update the DOE’s so-called “Process Rule,” which governs how the agency develops standards, adding onerous requirements that will make it much more difficult to make any changes at all.
Under the Energy Policy and Conservation Act, the DOE is generally required to review existing standards every six years and assess whether recent technological advances warrant raising the bar for efficiency for any given product category. Updating the standards involves extensive technological and economic analysis, including looking at the cost to manufacturers and payback periods for consumers, as well as several rounds of public comment. After a new standard is issued, products that fail to meet that level of efficiency have to be taken off the market.
The new proposal delivers on the appliance industry’s request that President Trump restore the process he finalized during his first term, which Biden swiftly reversed. The changes include raising the minimum energy savings required to issue a new standard, adding several more steps and requirements to the rulemaking process for new standards, and using industry-developed test procedures to measure the efficiency of new products.
“This obstacle course of restrictions would hinder the department from carrying out its congressional mandate to protect consumers,” Andrew deLaski, executive director of the Appliance Standards Awareness Project, said in a statement. “We have products that keep getting more efficient and we need to embrace these technological advances, not reject them, especially as data centers strain our electric grid.”
Manufacturers welcomed the announcement. “AHAM applauds the Department of Energy for acting swiftly and delivering a proposed Process Rule that reflects years of constructive engagement with manufacturers, consumers, and other stakeholders,” Kelly Mariotti, the Association of Home Appliance Manufacturers’ president and CEO, said in a statement. The Air-Conditioning, Heating, and Refrigeration Institute also told me it “strongly supports DOE’s review” of the rules, although both groups said they were still working through the proposal.
The Energy Department issued a request for information last April seeking comments on potential changes to its procedures for revising energy conservation standards. At the time, the industry’s biggest trade groups urged the agency to “return to the 2020 version of the Process Rule.”
Trump has long been sympathetic to the industry’s ire over ever-tightening standards. He’s complained about dishwashers and heating systems that no longer work and showers that slow to a trickle. Now, Energy Secretary Chris Wright has joined in, grumbling about clothes dryers that run for multiple cycles.
The Process Rule changes threaten the potential to create significant consumer savings, however, according to the Appliance Standards Awareness Project. The group estimates that based on recent technological advances, the DOE’s next round of standard updates could save the average U.S. household $160 per year on their utility bills, and businesses a collective $15 billion in annual operating costs over 20 years. The group also projects that updated standards have the potential to reduce summer peak electricity demand 34 gigawatts by 2040, which would be like taking New York City off the grid. There are climate benefits, too, of course — an estimated reduction of 800 million metric tons of carbon emissions through 2050.
Even if finalized, Trump’s changes to the Process Rule will not be irreversible, and could continue to ping pong back and forth between administrations, “creating the kind of uncertainty and instability that makes it difficult for manufacturers to plan, invest, and innovate with confidence to the benefit of American consumers,” according to Mariotti of AHAM. The industry’s hope is for Congress to amend the underlying Energy Policy and Conservation act to “lock these reforms into statute,” she said. One such effort, the Don’t Mess With My Home Appliances Act introduced by Republican Representative Rick Allen of Georgia, passed the House in February.
The DOE’s proposal follows a memorandum of agreement the agency reached with the Environmental Protection Agency in March to take over as the lead agency running the EnergyStar labeling program, which identifies the most efficient appliances in a given category. The Process Rule changes will not affect EnergyStar, however.
The DOE is accepting public comments on its proposal for 30 days and will hold a public meeting on July 15.
Cities like New York, Philadelphia, and Toronto will see more days like this — but the effects of chronic not-so-extreme heat also build up.
The map of the Eastern United States has turned purple.
That’s the color used by the National Weather Service to distinguish the most severe category of extreme heat — a “rare and long-duration” event “with no overnight relief” — which spread like a bruise on Thursday morning from Chicago to Detroit and across the entire state of Ohio. From there, the purple splits north toward Toronto — where Portugal and Croatia will face each other tonight in a Round of 32 match — and down across the 13 original colonies, from Boston to New York City to Washington, D.C., Richmond, Charlotte, and Atlanta. An estimated 83 million Americans, or about a quarter of the population, are under the most extreme heat warning, with local temperatures cresting 100 degrees Fahrenheit; in many places, humidity will push the heat index up to 15 degrees higher.
That’s killer heat. Although the United States has a higher deployment of air conditioning than Europe, early tallies from the heat wave on the continent in late June found that some 20,000 people died from “heat-exacerbated causes” like heart attacks. In general, in New York City, an estimated 3% of deaths between May and September are due to the heat, a recent city report found — that’s about 500 deaths a year, close to the number of homicides during the city’s year of peak violence in 1990.
“Extreme heat is a chronic stressor that leads to hundreds of deaths in New York City,” Jeff Schlegelmilch, the director of the National Center for Disaster Preparedness at the Columbia Climate School, told me. “I’ve seen models showing the cumulative number of excess deaths over the next several decades could be in the tens of thousands.”
But while heat waves like the one this week bring much-needed attention to the public health crisis, it’s not actually extreme events that are driving those mortality figures. According to the city, about 80% of heat-related deaths in New York occur when temperatures are below 95 degrees Fahrenheit — that is, on hot, but not extremely hot, days. While risk increases with temperature in the way you’d expect, jumping sharply after 90 degrees Fahrenheit is crossed, there are more days in the still-dangerous 82- to 94-degree range on average each summer in New York (74, up from 52 in the 1970s) than extreme heat days like the ones occurring this week (of which there are about 11 per summer).
Schlegelmilch likened the moderate-temperature heat deaths to those during COVID, when it was the frontline workers who were paid hourly, couldn’t take days off, and who lived in more crowded homes who were the hardest hit. “We see those same patterns increasing exposure to heat,” he told me, noting that Latino and Black New Yorkers die from heat stress at rates two to three times higher, respectively, than white New Yorkers.
That said, the majority of people who die from heat-exacerbated causes do so in their homes, which “isn’t necessarily where the totality of the exposure to the heat is,” Schlegelmilch said. In fact, the number of people who die of direct heat stress in New York averages in the single digits per year, by comparison. “If you have to work outdoors, or you have to go back and forth to work and be exposed to the heat, and you go back into a home that is hot, and your body isn’t cooling off at night — this is actually something we’re very worried about tonight and tomorrow night — then the body doesn’t get that break.”
Part of the reason direct heat stress deaths are lower than those caused by chronic exposure is thanks to the agility, urgency, and attention of local governments, which issue heat warnings, promote cooling centers, and take preemptive measures during the worst heat waves — such as Toronto canceling its downtown World Cup watch party this afternoon. In New York this week, kiosks will help direct people to their nearest cooling centers, and local pools will stay open later. Meanwhile, to address more systemic heat impacts on the vulnerable, Mayor Zohran Mamdani has signed an executive order calling for the development and issuance of guidance for protecting outdoor workers and vendors during future heat events.
Because heat-related deaths often take the form of heart attacks, kidney disease, and diabetes, and therefore “don’t fit within the disaster declaration mechanisms” the same way floods or hurricanes do, “we don’t really have good policy to take care of this,” Schlegelmilch added. Particularly in cities with historically colder climates, such as Boston and New York, executive orders like Mamdani’s can be quick fixes, especially when followed by “lengthier and more thoughtful legislation and regulation.” But because the housing stock in such cities is older and, in some cases, even designed to retain heat, saving lives in the long term will require major infrastructure investments, ranging from tree planting to combat the urban heat island effect to expensive retrofitting.
“In the arc of history with disasters, we generally don’t do the things we need to do until it hurts too much,” Schlegelmilch said when I suggested that such a level of investment seems daunting, if not impossible, when spread out over the whole of New York, not to mention the Northeast. “It’s an open question how many people need to die, how many hours of productivity need to be lost, how much strain there is on infrastructure before everybody realizes this is not an abstract problem, that this is happening right now, and that it’s a hell of a lot more expensive to clean up after than to make these investments over the long run.”
An extreme heat wave might not be the primary driver of heat-related mortality in the United States, in other words, but it is certainly an opportunity to push for climate adaptation funding. “It’s not cheap at all,” Schlegelmilch agreed. “But it has to be part of the thinking, because there just isn’t another solution.”