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On heat records, climate finance, and global aridity
Current conditions: Tens of thousands of people are without power in the UK after Storm Darragh • A volcanic eruption of Mount Kanlaon in the Philippines triggered emergency evacuations • Red Flag fire warnings are in effect across Southern California as Santa Ana winds encounter dry weather.
The EU’s Copernicus Climate Change Service confirmed what many experts have long anticipated: 2024 will almost certainly beat 2023 to become the hottest year on record. It will also be the first with an average temperature exceeding the 1.5 degrees Celsius threshold – in fact the average temperature for 2024 is likely to be close to 1.6C above pre-industrial averages.
Copernicus
Last month was the second warmest November on record (surpassed only by last November). The global average temperature over the last 12 months through November was nearly 3 degrees Fahrenheit above the pre-industrial average and 1.3 degrees Fahrenheit above the more recent averages between 1991 and 2020. Sea surface temperatures also remain abnormally high.
The World Bank received $23.7 billion in increased contributions from donor countries to replenish its International Development Association, the lending arm dedicated to the world’s poorest and most vulnerable nations. That brings the total financing to $100 billion and marks “a significant moment for global development,” the bank said. African countries had hoped for more, given the strength of the dollar. Still, the development raises hopes for more climate resilience funding. The U.S. has pledged $4 billion to the IDA under President Biden, but that is expected to change under the incoming Trump administration.
In case you missed it: Goldman Sachs announced it is leaving the Net Zero Banking Alliance, a global climate coalition for banks. The group didn’t elaborate on the reasoning for the decision, but sources toldBloomberg it was due to mandatory reporting guidelines. “Firms have been struggling to adapt to a deluge of environmental, social, and governance requirements being enforced by regulators in key markets,” Bloombergreported. Meanwhile, Republican lawmakers have been aggressively targeting ESG investment strategies. BlackRock and other investors are being sued by GOP-led states for allegedly breaching antitrust law in ESG investment. Goldman joined the NZBA in 2021. The coalition asks members to set interim five-year targets toward a goal of net zero financed emissions by 2050.
Over the last 30 years, large swathes of land that were once lush and humid have dried out, becoming too arid to sufficiently support robust ecosystems, according to a new report on global aridity from the UN Convention to Combat Desertification. The study found that more than 75% of all land on Earth has become drier over the last three decades, and that during that time, drylands expanded by an area the size of the Australian continent to cover 40% of all the global land (excluding Antarctica). This is a very bad trend. Aridity is different from drought. While drought eventually recedes, aridity is “an unrelenting menace,” leading to land degradation, water scarcity, biodiversity decline, crop losses, and large-scale human migration. Human-caused climate change is the main cause of the aridity crisis. “If the world fails in efforts to curb greenhouse gas emissions,” the UN warned, “another 3% of the world’s humid areas are projected to transform into drylands by the end of this century.”
UNCCD
President-elect Trump’s transition team reportedly wants to kill the Postal Service’s plans to electrify its delivery trucks. The team is examining ways to cancel the various contracts between USPS and providers like Ford and Oshkosh for tens of thousands of EVs, as well as charging stations. As Heatmap’s Jeva Lange reported recently, the small trucks driven by most local mail carriers get an abysmal 9 miles per gallon, “burning fuel by the tankful and spewing emissions as they go about their appointed rounds.”
Rules designed to protect whales from deadly collisions with ships are in place across just 7% of whale movement hotspots.
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Current conditions: A severe heat wave warning is in place for large parts of Australia’s Queensland state, where “unsettling” thunderstorms are expected • A bitter Arctic blast is heading for the Upper Midwest • An explosive wildfire is raging in Malibu, California, where at least 6,000 people have been told to evacuate immediately.
Microsoft yesterday unveiled a new design for data centers that reduces water use. The design “optimizes AI workloads and consumes zero water for cooling,” saving an estimated 125 million liters of water per year per data center. It does this by recycling water through a closed loop system, moving it between the servers and the water chillers. All new Microsoft data center designs will now be based on this cooling technology, and some pilots will come online in 2026.
Microsoft
The Biden administration confirmed its plans to hold an oil and gas drilling lease sale in the Arctic National Wildlife Refuge starting on January 9. The amount of land up for auction – some 400,000 acres – is the minimum required by law. The move seems to have angered people on all sides, for many different reasons. Environmentalists will remember that Biden campaigned on a promise to stop drilling in the ANWR. “The Arctic Refuge deserves to remain a place of refuge, not an industrial oilfield lining the pockets of big oil executives,” Kristen Miller, executive director of Alaska Wilderness League, said in a statement. Some Indigenous groups, however, want even more land included in the sale to maximize local economic benefits.
Lithium-ion battery pack prices dropped 20% this year, the biggest decline since 2017, according to BloombergNEF’s annual battery price survey, out today. It cites “significant overcapacity” as the main reason for the price change. Manufacturers expanded production in anticipation of a surge in EV sales that has been slow to materialize, and are now trying to sell off stock. Battery EV pack prices dropped by 27% this year, dropping below $100 per kilowatt-hour for the first time ever. This price point is “an oft-cited rule of thumb for where EVs reach price parity with internal combustion engine vehicles (ICEs),” the report adds. This will be hastened by increased production of cheaper batteries outside of China.
BloombergNEF
And sticking with EVs for a moment, Rivian’s stock got a nice boost after Benchmark Securities gave it a “buy” rating and projected a “massive market opportunity.” “We believe Rivian’s capability to manufacture EV’s domestically with in-house designed software has been validated through its partnerships with Amazon and Volkswagen,” wrote analyst Mickey Legg. “VW’s industry relationships and experience will help [Rivian] negotiate with suppliers and provide engineering synergies.” Rivian shares were up 11% in pre-market trading.
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Scientists are urging the European Union to ban solar geoengineering methods such as injecting aerosols into the stratosphere, cloud brightening/altering, and space mirrors. “The benefits and risks of these solar radiation modification technologies are highly uncertain,” the European Commission’s chief scientific advisers wrote, warning these activities could “bring substantial negative ecological and economic effects.” Instead, the group suggested prioritizing reducing greenhouse gas emissions as the “main solution to avoid dangerous levels of climate change.” It also called for implementing new rules that govern this practice worldwide.
The EPA has officially banned the use of trichloroethylene (TCE) and perchloroethylene (Perc), two common solvents known to cause cancer and other health problems.
New York’s Attentive Energy is now on pause, meaning more pollution, stalled plans, and a tighter margin for error.
As soon as Donald Trump was declared the winner of November’s presidential election, climate advocates vowed to continue making progress at the state and local level. But some local projects may still depend too much on federal policy to move forward.
The president-elect’s influence has already put a highly anticipated plan to convert New York City’s biggest power plant into a renewable energy hub on shaky ground. Central to the conversion is a 1,400-megawatt offshore wind farm called Attentive Energy developed by TotalEnergies. Trump, a longtime critic of the industry, has made vague threats to “end” offshore wind “on day one.” While that overstates his capabilities, his administration will, at the very least, have the power to slow the processing of permits.
The regulatory uncertainty was enough to convince Patrick Pouyanne, the CEO of TotalEnergies, to put Attentive Energy on pause, he said at the Energy Intelligence Forum in London, according to Bloomberg — though he left open the possibility of reviving it “in four years.”
That’s bad news for the Ravenswood Generating Station in Long Island City, Queens. Ravenswood consists of three steam turbines built in the 1960s that run mostly on natural gas, though sometimes also on oil, plus a natural gas combined cycle unit built in 2004. Together, they emitted nearly 1.3 million metric tons of CO2 in 2023, or about 8% of the city’s carbon emissions from electricity production, while representing more than 20% of the city’s local generating capacity. Ravenswood is also situated across the street from the largest public housing project in the country, and has spewed pollution into the area colloquially referred to as “asthma alley” for decades.
Rise Light and Power, the company that owns the plant, has said it will redress those harms to the community by transforming the site into “Renewable Ravenswood.” The aspiration includes retiring the three 1960s-era generators and replacing them with offshore wind, battery energy storage, and additional renewable energy delivered from upstate New York via a new transmission line. Long term, the company says it will repurpose the plant’s cooling infrastructure to provide clean heating and cooling to buildings in the neighborhood.
Members of the community and local political leaders celebrated the proposal and showed up at rallies and public hearings to support it. Rise Light and Power also incorporated clean energy job training into the plan and earned the support of the union workers who operate the plant. The environmental group Earthjustice recently cited Renewable Ravenswood in a state filing as a shining example of “a more community-centered approach to energy planning.”
The website for Renewable Ravenswood declares that the plan “starts with offshore wind,” and says that “Attentive Energy One is the first step.” When Attentive Energy submitted its initial bid for a power contract with the state last year, Rise Light and Power CEO Clint Plummer told the local outlet City Limitsthat the wind farm “essentially unlocks ‘Renewable Ravenswood.’”
Now, it's unclear when the promised air quality benefits and jobs will materialize.
When I hopped on the phone with Plummer, the Ravenswood CEO, last week, he downplayed the implications of the pause.
“I don’t think it changes that much,” he told me, stressing that “project delays don't impact our commitment to the vision” and that “it’s simply part of the process of developing these large scale energy infrastructure projects.” Plummer said the company could continue to make progress on permitting, engineering, and other related work on the site and in the community in the meantime. Since New York state has significantly more control over onshore renewables and transmission, he said, it may be possible to move more quickly on those.
The pause on Attentive Energy may have come with or without Trump — the project, which is a joint venture between Rise Light and Power, TotalEnergies, and Corio, had already withdrawn its revised bid for a contract to sell power into New York’s energy market in October. When I asked Attentive for clarification, however, representatives didn’t respond.
The wind farm pause is the third big setback to the company’s replacement plans in as many years.
The first effort to bring clean energy to Ravenswood was a 316-megawatt battery project the New York Public Service Commission approved in 2019. It was slated to be completed by April 2021, but by January of that year, the company had not yet secured an offtake agreement with Con Edison, the local utility, and so asked for a three-year extension. The development still has not broken ground. “Our project, and most like it that have been proposed in New York City, are awaiting the State’s expected battery procurement next year,” a spokesperson told me when I asked for a status update. “We expect that projects that received State incentives through that program will likely be able to proceed to construction quickly.”
The company also submitted a bid to the New York State Energy Research and Development Agency in May of 2021 to build a transmission line called the Catskills Renewable Connector that would be capable of delivering 1,200 megawatts of renewable energy from upstate solar and wind farms to the Ravenswood site, meeting up to 15% of the city’s electricity needs. But the agency passed over the proposal in favor of two other transmission lines — Clean Path New York, which would bring renewable power to the city from Western New York, and the Champlain Hudson Power Express, which would deliver hydropower from Canada. (While construction on the latter project is well underway, Clean Path was cancelled the day before Thanksgiving.)
“We weren't selected then, but we’ve continued to mature and advance that project,” Plummer told me, regarding the Catskills line. “All these projects take a very long period of time to realize.”
The only aspect of Renewable Ravenswood that’s still alive and kicking, at least publicly, is the Queensborough Renewable Express, a set of high-voltage power lines that would connect the site to any future offshore wind farms in New York Harbor. The company is currently awaiting approval on a key permit for the line from the New York Public Service Commission. But while much of the project is located within the jurisdiction of New York, part of it will also need federal approvals.
Plummer may not be too concerned about the wind farm’s delay, but a freeze on offshore wind development for the next four years would further stretch New York’s already strained climate goals.
New York law requires the state to get 70% of its energy from renewable sources by 2030 and 100% from zero-emissions sources by 2040. The most recent progress report on those goals, compiled by the New York Power Authority, found that the state had enough renewable energy operating and contracted so far to supply about 44% of expected demand in 2030.
A separate state analysis showed that offshore wind would play a key role in reaching the target, with an expected 6 gigawatts of offshore wind generation getting New York about 15% of the way there. But so far, the state has finalized contracts for only about 1.7 gigawatts. Though New York has several additional contracts pending awards, none of those potential projects has yet submitted construction plans to the federal Bureau of Ocean Management. If that office freezes its offshore wind work for the next four years, it’s possible none of them will be able to start construction until the 2030s at the earliest.
“Four years may not be significant for project development time frames,” Daniel Zarrilli, the former chief climate policy advisor for the city of New York, told me. “But the state has these 2030 and 2040 goals, and so many pieces of what makes up the ability to hit those goals are under stress. So it’s certainly not good news.”
New Yorkers aren’t the only ones who will be affected by the pause. Attentive Energy was also working on two additional offshore wind projects that would send power to New Jersey. The developer had already secured a contract to sell power into that state from a 1.3-gigawatt project called Attentive Energy Two. In July, it submitted a bid to New Jersey’s fourth offshore wind solicitation for an additional, unnamed 1.3-gigawatt project. The New Jersey Board of Public Utilities is expected to reach a decision on that solicitation this month.
I reached out to TotalEnergies to ask whether all three projects were paused or just the New York one, but the company said it would not comment on Pouyanne’s speech. The New Jersey Board of Public Utilities also did not respond as to whether Attentive had pulled either its awarded contract or bid.
It’s true that developing these projects takes a long time, and that anyone excited about Renewable Ravenswood should not have expected any new clean power to come into the site until the end of this decade, anyway. But further delays could have real consequences. “Any of these projects faltering is just going to keep New York City reliant on an aging and dirty fossil fleet,” said Zarrilli. The city is in a hole, he said, after the Indian Point nuclear plant closed and made it even more reliant on natural gas for electricity.
On my call with Plummer, he emphasized several times that the city has “the thinnest reserve margins we’ve had in decades” — in other words, it doesn’t have much wiggle room to meet increases in electricity demand. Rise Light and Power has already shut down 17 small gas “peaker” plants that were previously part of Ravenswood to make room for new renewable energy infrastructure. The city will be in better shape in 2026, assuming the Champlain Hudson Power Express finishes on time, according to the New York grid operator NYISO. But by the early 2030s, when additional peaker plants are expected to be shut down due to pollution regulations, New York could be back on thin ice.
By then, the steam turbines at Ravenswood will be nearly 70 years old. Unless significant additional generation comes online by then, Rise Light and Power could be forced to re-invest in those gas generators rather than retire them. “It’d be terrible if they were forced to make that choice in the future,” said Zarrilli.
One possible explanation for the extremely hot temperatures of recent years: removing the sulfur dioxide from shipping fuels.
The world has been very hot lately. Like, really hot. Much hotter than you might expect from climate change alone.
In 2023, the global average temperature was nearly 1.5 degrees Celsius, or 2.7 degrees Fahrenheit, above its pre-industrial level. It is nearly certain to exceed that milestone in 2024.
These are extreme leaps. For context, 2019 was the second-hottest year on record when it happened, and it was merely 0.95 degrees Celsius above the pre-industrial average. So Earth’s temperature has seemingly surged half a degree Celsius in five years.
These searingly hot temperatures aren’t completely outside the range climate models predict, but they are arriving sooner than most scientists thought, and climate researchers haven’t yet reached a consensus explanation for why they are happening.
This week, though, we got somewhat closer. A new study adds to a growing literature suggesting that a change to global shipping fuels has accidentally contributed to a surge in warming.
In 2020, the International Maritime Organization began enforcing rules that removed a toxic air pollutant, sulfur dioxide, from shipping fuels. Sulfur dioxide can inflame and irritate the heart and lungs, trigger asthma attacks, and can cause acid rain. But it can also reflect heat back into space, cooling the Earth.
These cooling effects of sulfur dioxide are very short-lived, and sulfur dioxide only sticks around in the atmosphere for about a week and a half. (Carbon dioxide, on the other hand, can persist in the atmosphere for a millennium.)
It now seems that all those sulfur aerosols were likely reflecting enough heat back into space to make a noticeable difference in the Earth’s temperature rise. The new study, written by the researchers Ilaria Quaglia and Daniele Visioni, finds that removing sulfur dioxide from shipping fuel likely increased the planet’s temperature by 0.08 degrees Celsius.
This change alone can’t explain the Earth’s recent surge in temperature rise. But the new rules likely made the record-breaking temperatures in 2023 roughly 12 times likelier than they would have been had the rules not changed, Visioni, an atmospheric chemistry professor at Cornell, told me.
“The likelihood of something like 2023 happening — was it made larger, was it made bigger, by this contribution? We found, yes,” he said.
The timing of the surge — and the fact that the most anomalously warm part of the planet has been the surface of the North Atlantic Ocean, a popular shipping route — also support the conclusion that the IMO rules are playing an effect.
Other factors — including natural fluctuations in Earth’s multi-year climate cycles, like El Niño — may have helped the surge along too, Visioni said. “If you take a probabilistic approach, you can say, even without the shipping rules, 2023 wouldn’t have been completely impossible,” he added. “But you cannot evaluate the truthfulness of probability from one outcome because you only have one world.” In other words, both climate change and our response to it are part of the same poorly designed experiment — and we can only run that experiment once.
Over the past 12 months, several other papers have reached a similar conclusion, although they disagree about the magnitude of the IMO’s accidental cooling effect. Quaglia and Visioni’s study finds one of the largest effects.
The literature suggests that sulfur dioxide’s effects are “in the range of three hundredths to eight hundredths of a degree Celsius, but I don’t know that we can say that we're on the high or low end of that,” Zeke Hausfather, a climate scientist who studies carbon removal technologies at the tech company Stripe, told me. Hausfather has his own estimate of how much shipping rules have affected the recent warming episode — about five hundredths of a degree Celsius — which he reached with Piers Forster, a climate physics professor at the University of Leeds.
The exact magnitude of the effect, though, might matter less than the fact that it happened at all. For Visioni, the results demonstrate that policymakers need to think more intentionally about the tradeoffs between cutting toxic air pollution emissions and losing the cooling effect those same toxic emissions produce.
Over the past few decades, humanity has gotten better at cutting toxic air pollution from power plants and industrial activities than previous climate models estimated. That means that, somewhat paradoxically, it might be more difficult to stay below the Paris Agreement’s 2 degrees C warming goal because the same levels of greenhouse gas emissions will now have a greater warming effect than they would have in 2015.
It’s time to discuss this trade-off frankly and head-on, he told me. That also means taking seriously — and beginning research — on the proposition that humanity may want to experiment with intentionally releasing some forms of aerosols to suppress the planet’s warming — something the international shipping community has historically been loath to do.
In 2013, a paper from Finnish researchers suggested that ships could retain the climate benefits of sulfur aerosol pollution — while mitigating most of their public health downsides — by burning clean fuels near the coasts, but dirtier fuel on the open ocean. Under that scenario, shipping emissions would actually have reflected even more heat than they did at the time. But the group downplayed that scenario in part because it was a potential form of geoengineering.
Is it? It’s not clear where the line of “intentionality” in geoengineering lies, Visioni said. If you stop doing something bad for the environment, but it has a warming effect on the climate, are you geoengineering? Or are you passing prudent environmental policy? The question of where geoengineering begins or ends gets harder and harder to adjudicate — especially while humanity conducts what is in essence the largest and most important geo-engineering experiment possible by burning fossil fuels and releasing billions of tons of greenhouse gas pollution into the atmosphere.
Visioni made a point to emphasize that he’s in favor of the IMO’s efforts to clean up shipping emissions. “Do we keep polluting? No. I think we should be forceful and say no,” he said.
“But on the other hand, my wish would be if we started discussions a bit more like, ‘Okay, so do we think that these [warming] thresholds are so important? And if so, are we willing to have a discussion about what we could do to prevent this warming from happening?”
Visioni’s paper is not the only new study that seeks to explain the warming blip. On Friday, a team of German researchers wrote in Science that a recent and mysterious decline in low-altitude clouds in the atmosphere has decreased the planet’s brightness. Clouds, like sulfur aerosol emissions, reflect heat back into space, and so their decline would also contribute to a warming surge.
They provide another piece of evidence that the surge in warming is caused by some fundamental change to the climate system and not by a multiu-seasonal hiccup like El Niño. “The big question that we have is: Is this a blip or not?” Hausfather said. “If we're in the world where El Nino is behaving weirdly, that’s kind of the comforting one, because it means we’ll go back to normal — normal here being a rapidly warming world. If the spike in warming over the past two years is due to natural variability, it means it will likely be shortlived.”
The more worrying possibility, he continued, is that something more fundamental has changed in the climate system. Climate scientists describe these shifts as a change in “radiative forcings,” meaning a change in the basic dynamics that force adjustments in the energy balance between the Earth, the Sun, and outer space.
“If this is a change in forcings — which clouds or aerosols would imply — then that change in forcing would likely persist. It would be a factor that continues affecting the climate in the future, rather than just a blip,” Hausfather said.