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With a deal on the global stocktake yet to emerge from Dubai, we asked an expert to fill us in.

This year’s United Nations Climate Change Conference, COP28, has been broadly defined by two facts. The first is that the conference is headed by the CEO of the United Arab Emirates’ state-owned oil company. The second is that this is the year of the first global stocktake, a document that should, in theory, set the world on a path to achieve the goals laid out in the Paris Agreement of 2015.
Perhaps unsurprisingly, that combination has not produced tremendous results. The latest draft of the stocktake dropped language calling for a fossil fuel phase-out. The condemnation was swift: “We will not sign our death certificate,” said the Association of Small Island States in a statement. “We think there are elements in the text that are fully unacceptable,” Spain’s environment minister said.
I was curious: How, exactly, does a global stocktake come to be? To find out, I called up Tom Evans, a policy advisor and climate negotiations specialist at the climate change think tank E3G, who is currently on the ground in Dubai. Our conversation, which has been lightly edited for length and clarity, is below.
Catch me up. How are things going on the ground?
It’s … going along. There’s a lot of discussions at the moment around the text that came out yesterday. Many, many parties are dissatisfied with the level of ambition in that text. It didn’t have the fossil fuel phaseout, it wasn’t strong enough on things like finance or adaptation, so that has triggered this big backlash. It’s all happening behind closed doors at the moment with ministers and politicians talking about the text, and the rest of us are kind of in a black box with regards to what’s going on. But it’s all really on a knife’s edge.
What is happening behind those doors, as best as you can tell?
The process is somewhat unclear. COPs don’t have any strict procedures; the presidency can choose how to do this diplomacy to get to the outcome it needs. At the moment, we’re in the phase of basically bilateral consultations being led by the UAE. The presidency is bringing people together behind the scenes. Everyone’s kind of slowly talking to each other.
What do you mean by bilateral consultations, exactly?
The UAE sitting down with a party — let’s say India, for example — and hearing their concerns and understanding what their red lines are, what they’re looking to change in the text. And then with that knowledge they’ll have another meeting, sitting down with, say, the U.S., having the same conversation and trying to map out where people sit based on these conversations.
They don’t have a big meeting room where everyone is at the table. They haven’t done a plenary yet. Last night they did a heads of delegation meeting, which brought all parties together. It was a closed meeting, and it started at 10 p.m. and finished at about 2 a.m. last night, which we hadn’t seen before.
Of course, at the same time, countries are talking to each other in different configurations. So there are different groups who will come together, such as the regional groups [who might have common goals]. And the U.S., I’m sure, is talking to China and Saudi Arabia.
The UAE has other tools at their disposal — earlier this week they hosted an informal ministerial circle where they talked about the issues together — but at the moment, they’re choosing to do this very closed or bilateral diplomacy, probably because the stakes are high and they need to act sensitively around what this next iteration of text looks like. Because an awful lot hinges upon it.
There must be some real power dynamics at play here. Are there some countries that the UAE is more inclined to listen to than others?
The UNFCCC is weird because some of the times those power dynamics are different from what you might expect. Small island states and other countries have an awful lot of power compared to [the regular UN framework], where they’re not the geopolitical shapers. But in this space, they have much more power because of their moral authority.
This word, “stocktake,” implies a kind of mathematical act. Is there an emissions reckoning happening?
Stocktake is definitely a bad name — we’ve already done a lot of the stock-taking. The past two years had the process of technical dialogues among parties and experts and non-party stakeholders, and we had reports including the IPCC which fed into that. Those conclusions were published back in September, and that report kind of tells us what we already know: Action is growing but inadequate, finance is not there at the scale needed, it’s not going to the right people in the right places at the right time. We think we know what we need to do, we just have to find the ways to do it. How do we commit [to] things here in Dubai that will bend the emissions curve and make sure that actions are implemented on the ground?
Before this COP, I had the impression that the stocktake is going to be some sort of big reckoning of past and future emissions. But it sounds like what’s happening now is similar to how past COP negotiations have gone. Is there something that makes the stocktake stand out from the agreements that were negotiated at previous COPs?
One big difference is that this is the central mechanism of the Paris Agreement, where we take stock and assess how to close gaps to meeting those goals. And that hasn’t happened in a formal way before.
The Paris Agreement was designed to have a stocktake so that we could make sure that our successive action, as the years go by, was ratcheting up, making sure that we’re not just coasting along but really delivering stronger and stronger progress. So that’s an important part of this. We are engaging with the Paris Agreement and saying, “okay, can we make sure it fulfills its goals in that formal way?”
The other part of it is that the stocktake, because it’s had this two-year process, has clearly identified the gaps. No one can deny that we’re not doing enough on finance and that adaptation is massively neglected. We’ve acknowledged that there’s been some progress on emission reductions, but it’s just an incremental push towards what's needed. Those conclusions have a certain weight that we can draw from.
What happens if there is no agreement? Is that an option?
I don’t think that is an option. No agreement would be a failure, a clear sign of an inability of the parties to rise to the challenge of what’s needed. There’s obviously a difficult question about what level of agreement is not good enough, but that’s the reason why the parties are working so hard right now to rescue this — because the deal on the table at the moment was clearly falling below that line. That’s why we saw the backlash.
The UAE certainly will be aware that that is what’s at stake. It’s their presidency, they need to deliver what they set out to do. They need to be able to show the final success. After a year of many pledges and announcements, new money, new initiatives — all of that is important, but it doesn’t count unless you negotiate this final outcome.
And every party has to agree to the final outcome?
It has to be consensus, though what exactly consensus means can be debated. Everyone would have to not object. The weird state of the UNFCCC process means that sometimes there have been things which aren’t necessarily fully agreed 100% but still reached consensus.
Consensus isn’t perfect. It’s a political call, it's not a mathematical number game where you tally up votes. For example, even this year, when the parties agreed [to] the loss and damage fund, the U.S. said in that meeting that they didn’t agree to it. But they said they weren’t in the room when consensus was reached, because the negotiator had left the room temporarily, so an agreement was reached and they approved it here in Dubai.
So there’s ways you can play with the system and survive. There have been instances in the past I’ve heard many years ago where decisions have been gaveled through despite objection because the presidency felt confident that the objections were not sufficient to obstruct the outcome.
This is the first stocktake process. Do you think part of what’s making it so hard is that there is no previous framework?
To an extent we’re creating something new, trying to do this for the first time. But I think also, it’s the politics. We are looking at the hardest issue, and for the first time in years getting on the edge of agreeing [to] something like a fossil fuel phaseout. And that brings up deep challenges for countries who are extremely dependent on fossil fuels. That’s true on all sides — not just producers, but also consumers.
We’re talking about initiating a model for the world which doesn’t have fossils in it. And that’s never been done — even in countries who have decarbonized to a great degree, they have not been able to show how that works at an international level.
So it is a huge ask, and there is no doubt that there can be challenges when trying to do that. And that’s what we’re seeing. We’re seeing the pains of trying to get something that’s useful. We’re no longer negotiating a treaty like we were in Paris. We’re no longer agreeing on a rulebook, which we did for five years up until COP26. We’re now really firmly talking about implementation. What does it mean to deliver the Paris Agreement? What does it mean to actually reduce emissions, not just pledge targets? So obviously it’s going to be a painful conversation, but it’s a difficult and important one.
Is there a misconception or something frustrating about this process that you wish people knew more about?
I think the biggest frustration is that this isn’t about just a technical exercise where you’re like, “oh, we need to phase out fossil fuels, because that's what is needed.” I mean, that’s true. But there’s a deeper question here of “how does the Paris Agreement work?”
The Paris Agreement works on the basis of a deal that if we have finance, if we have cooperation, if we have means to deliver action, [then] we can do more ambitious things, we can raise and accelerate action. That is what is at stake here. So when we’re talking about phasing out fossil fuels, we should also be asking, where’s the financial pathway to do that? When we’re talking about trying to make sure that countries have more adaptation, where is the money on the table to do that? And at the moment, we know it’s a drop in the ocean. These are the contours of the deal that we need to really examine.
And it won’t be all sealed here. It goes on and on until COP30 and after that. But the global stocktake is, I think, like a marriage vow renewal. You need to kind of renew the trust and the faith that that deal, that system’s working. And right now it’s looking like maybe a shaky marriage.
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A federal judge in Massachusetts ruled that construction on Vineyard Wind could proceed.
The Vineyard Wind offshore wind project can continue construction while the company’s lawsuit challenging the Trump administration’s stop work order proceeds, judge Brian E. Murphy for the District of Massachusetts ruled on Tuesday.
That makes four offshore wind farms that have now won preliminary injunctions against Trump’s freeze on the industry. Dominion Energy’s Coastal Virginia offshore wind project, Orsted’s Revolution Wind off the coast of New England, and Equinor’s Empire Wind near Long Island, New York, have all been allowed to proceed with construction while their individual legal challenges to the stop work order play out.
The Department of the Interior attempted to pause all offshore wind construction in December, citing unspecified “national security risks identified by the Department of War.” The risks are apparently detailed in a classified report, and have been shared neither with the public nor with the offshore wind companies.
Vineyard Wind, a joint development between Avangrid Renewables and Copenhagen Infrastructure Partners, has been under construction since 2021, and is already 95% built. More than that, it’s sending power to Massachusetts customers, and will produce enough electricity to power up to 400,000 homes once it’s complete.
In court filings, the developer argued it was urgent the stop work order be lifted, as it would lose access to a key construction boat required to complete the project on March 31. The company is in the process of replacing defective blades on its last handful of turbines — a defect that was discovered after one of the blades broke in 2024, scattering shards of fiberglass into the ocean. Leaving those turbine towers standing without being able to install new blades created a safety hazard, the company said.
“If construction is not completed by that date, the partially completed wind turbines will be left in an unsafe condition and Vineyard Wind will incur a series of financial consequences that it likely could not survive,” the company wrote. The Trump administration submitted a reply denying there was any risk.
The only remaining wind farm still affected by the December pause on construction is Sunrise Wind, a 924-megawatt project being developed by Orsted and set to deliver power to New York State. A hearing for an injunction on that order is scheduled for February 2.
Noon Energy just completed a successful demonstration of its reversible solid-oxide fuel cell.
Whatever you think of as the most important topic in energy right now — whether it’s electricity affordability, grid resilience, or deep decarbonization — long-duration energy storage will be essential to achieving it. While standard lithium-ion batteries are great for smoothing out the ups and downs of wind and solar generation over shorter periods, we’ll systems that can store energy for days or even weeks to bridge prolonged shifts and fluctuations in weather patterns.
That’s why Form Energy made such a big splash. In 2021, the startup announced its plans to commercialize a 100-plus-hour iron-air battery that charges and discharges by converting iron into rust and back again The company’s CEO, Mateo Jaramillo, told The Wall Street Journal at the time that this was the “kind of battery you need to fully retire thermal assets like coal and natural gas power plants.” Form went on to raise a $240 million Series D that same year, and is now deploying its very first commercial batteries in Minnesota.
But it’s not the only player in the rarified space of ultra-long-duration energy storage. While so far competitor Noon Energy has gotten less attention and less funding, it was also raising money four years ago — a more humble $3 million seed round, followed by a $28 million Series A in early 2023. Like Form, it’s targeting a price of $20 per kilowatt-hour for its electricity, often considered the threshold at which this type of storage becomes economically viable and materially valuable for the grid.
Last week, Noon announced that it had completed a successful demonstration of its 100-plus-hour carbon-oxygen battery, partially funded with a grant from the California Energy Commission, which charges by breaking down CO2 and discharges by recombining it using a technology known as a reversible solid-oxide fuel cell. The system has three main components: a power block that contains the fuel cell stack, a charge tank, and a discharge tank. During charging, clean electricity flows through the power block, converting carbon dioxide from the discharge tank into solid carbon that gets stored in the charge tank. During discharge, the system recombines stored carbon with oxygen from the air to generate electricity and reform carbon dioxide.
Importantly, Noon’s system is designed to scale up cost-effectively. That’s baked into its architecture, which separates the energy storage tanks from the power generating unit. That makes it simple to increase the total amount of electricity stored independent of the power output, i.e. the rate at which that energy is delivered.
Most other batteries, including lithium-ion and Form’s iron-air system, store energy inside the battery cells themselves. Those same cells also deliver power; thus, increasing the energy capacity of the system requires adding more battery cells, which increases power whether it’s needed or not. Because lithium-ion cells are costly, this makes scaling these systems for multi-day energy storage completely uneconomical.
In concept, Noon’s ability to independently scale energy capacity is “similar to pumped hydro storage or a flow battery,” Chris Graves, the startup’s CEO, told me. “But in our case, many times higher energy density than those — 50 times higher than a flow battery, even more so than pumped hydro.” It’s also significantly more energy dense than Form’s battery, he said, likely making it cheaper to ship and install (although the dirt cheap cost of Form’s materials could offset this advantage.)
Noon’s system would be the first grid-scale deployment of reversible solid-oxide fuel cells specifically for long-duration energy storage. While the technology is well understood, historically reversible fuel cells have struggled to operate consistently and reliably, suffering from low round trip efficiency — meaning that much of the energy used to charge the battery is lost before it’s used — and high overall costs. Graves conceded Noon has implemented a “really unique twist” on this tech that’s allowed it to overcome these barriers and move toward commercialization, but that was as much as he would reveal.
Last week’s demonstration, however, is a big step toward validating this approach. “They’re one of the first ones to get to this stage,” Alexander Hogeveen Rutter, a manager at the climate tech accelerator Third Derivative, told me. “There’s certainly many other companies that are working on a variance of this,” he said, referring to reversible fuel cell systems overall. But none have done this much to show that the technology can be viable for long-duration storage.
One of Noon’s initial target markets is — surprise, surprise — data centers, where Graves said its system will complement lithium-ion batteries. “Lithium ion is very good for peak hours and fast response times, and our system is complementary in that it handles the bulk of the energy capacity,” Graves explained, saying that Noon could provide up to 98% of a system’s total energy storage needs, with lithium-ion delivering shorter streams of high power.
Graves expects that initial commercial deployments — projected to come online as soon as next year — will be behind-the-meter, meaning data centers or other large loads will draw power directly from Noon’s batteries rather than the grid. That stands in contrast to Form’s approach, which is building projects in tandem with utilities such as Great River Energy in Minnesota and PG&E in California.
Hogeveen Rutter, of Third Derivative, called Noon’s strategy “super logical” given the lengthy grid interconnection queue as well as the recent order from the Federal Energy Regulatory Commission intended to make it easier for data centers to co-locate with power plants. Essentially, he told me, FERC demanded a loosening of the reins. “If you’re a data center or any large load, you can go build whatever you want, and if you just don’t connect to the grid, that’s fine,” Hogeveen Rutter said. “Just don’t bother us, and we won’t bother you.”
Building behind-the-meter also solves a key challenge for ultra-long-duration storage — the fact that in most regions, renewables comprise too small a share of the grid to make long-duration energy storage critical for the system’s resilience. Because fossil fuels still meet the majority of the U.S.’s electricity needs, grids can typically handle a few days without sun or wind. In a world where renewables play a larger role, long-duration storage would be critical to bridging those gaps — we’re just not there yet. But when a battery is paired with an off-grid wind or solar plant, that effectively creates a microgrid with 100% renewables penetration, providing a raison d’être for the long-duration storage system.
“Utility costs are going up often because of transmission and distribution costs — mainly distribution — and there’s a crossover point where it becomes cheaper to just tell the utility to go pound sand and build your power plant,” Richard Swanson, the founder of SunPower and an independent board observer at Noon, told me. Data centers in some geographies might have already reached that juncture. “So I think you’re simply going to see it slowly become cost effective to self generate bigger and bigger sizes in more and more applications and in more and more locations over time.”
As renewables penetration on the grid rises and long-duration storage becomes an increasing necessity, Swanson expects we’ll see more batteries like Noon’s getting grid connected, where they’ll help to increase the grid’s capacity factor without the need to build more poles and wires. “We’re really talking about something that’s going to happen over the next century,” he told me.
Noon’s initial demo has been operational for months, cycling for thousands of hours and achieving discharge durations of over 200 hours. The company is now fundraising for its Series B round, while a larger demo, already built and backed by another California Energy Commission grant, is set to come online soon.
While Graves would not reveal the size of the pilot that’s wrapping up now, this subsequent demo is set to deliver up to 100 kilowatts of power at once while storing 10 megawatt-hours of energy, enough to operate at full power for 100 hours. Noon’s full-scale commercial system is designed to deliver the same 100-hour discharge duration while increasing the power output to 300 kilowatts and the energy storage capacity to 30 megawatt-hours.
This standard commercial-scale unit will be shipping container-sized, making it simple to add capacity by deploying additional modules. Noon says it already has a large customer pipeline, though these agreements have yet to be announced. Those deals should come to light soon though, as Swanson says this technology represents the “missing link” for achieving full decarbonization of the electricity sector.
Or as Hogeveen Rutter put it, “When people talk about, I’m gonna get rid of all my fossil fuels by 2030 or 2035 — like the United Kingdom and California — well this is what you need to do that.”
On aluminum smelting, Korean nuclear, and a geoengineering database
Current conditions: Winter Storm Fern may have caused up to $115 billion in economic losses and triggered the longest stretch of subzero temperatures in New York City’s history • Temperatures across the American South plunged up to 30 degrees Fahrenheit below historical averages • South Africa’s Northern Cape is roasting in temperatures as high as 104 degrees.

President Donald Trump has been on quite a shopping spree since taking an equity stake in MP Materials, the only active rare earths miner in the U.S., in a deal Heatmap’s Matthew Zeitlin noted made former Biden administration officials “jealous.” The latest stake the administration has taken for the American taxpayer is in USA Rare Earth, a would-be miner that has focused its attention establishing a domestic manufacturing base for the rare earth-based magnets China dominates. On Monday, the Department of Commerce announced a deal to inject $1.6 billion into the company in exchange for shares. “USA Rare Earth’s heavy critical minerals project is essential to restoring U.S. critical mineral independence,” Secretary of Commerce Howard Lutnick said in a statement. “This investment ensures our supply chains are resilient and no longer reliant on foreign nations.” In a call with analysts Monday, USA Rare Earth CEO Barbara Humpton called the deal “a watershed moment in our work to secure and grow a resilient and independent rare earth value chain based in this country.”
After two years of searching for a site to build the United States’ first new aluminum smelter in half a century, Century Aluminum has abandoned its original plan and opted instead to go into business with a Dubai-based rival developing a plant in Oklahoma. Emirates Global Aluminum announced plans last year to construct a smelter near Tulsa. Under the new plan, Century Aluminum would take a 40% stake in the venture, with Emirates Global Aluminum holding the other 60%. At peak capacity, the smelter would produce 750,000 tons of aluminum per year, a volume The Wall Street Journal noted would make it the largest smelter in the U.S. Emirates Global Aluminum has not yet announced a long-term contract to power the facility. Century Aluminum’s original plan was to use 100% of its power from renewables or nuclear, Canary Media reported, and received $500 million from the Biden administration to support the project.
The federal Mine Safety and Health Administration has stopped publishing data tied to inspections of sites with repeated violations, E&E News reported. At a hearing before the House Education & the Workforce Subcommittee on Workforce Protections last week, Wayne Palmer, the assistant secretary of labor for mine safety and health, said the data would no longer be made public. “To the best of my knowledge, we do not publish those under the current administration,” Palmer said. He said the decision to not make public results of “targeted inspections” predated his time at the agency. The move comes as the Trump administration is pushing to ramp up mining in the U.S. to compete with China’s near monopoly over key metals such as rare earths, and lithium. As Heatmap’s Katie Brigham wrote in September, “everybody wants to invest in critical minerals.”
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South Korea’s center-left Democratic Party has historically been staunchly anti-nuclear. So when the country’s nuclear regulator licensed a new plant earlier this month — its first under a new Democratic president — I counted it as a win for the industry. Now President Lee Jae-myung’s administration is going all in all on atomic energy. On Monday, NucNet reported that the state-owned Korea Hydro & Nuclear Power plans to open bidding for sites for two new large reactors. The site selection is set to take up to six months. The country then plans to begin construction in the early 2030s and bring the reactors online in 2037 and 2038. Kim Sung-whan, the country’s climate minister, said the Lee administration would stick to the nuclear buildout plan authored in February 2025 under former President Yoon Suk Yeol, a right-wing leader who strongly supported the atomic power industry before being ousted from power after attempting to declare martial law.
Reflective, a nonprofit group that bills itself as “aiming to radically accelerate the pace of sunlight reflection research,” launched its Uncertainty Database on Monday, with the aim of providing scientists, funders, and policymakers with “an initial foundation to create a transparent, prioritized, stage-gated” roadmap of different technologies to spray aerosols in the atmosphere to artificially cool the planet. “SAI research is currently fragmented and underpowered, with no shared view of which uncertainties actually matter for real-world decisions,” Dakota Gruener, the chief executive of Reflective, said in a statement. “We need a shared, strategic view of what we know, what we don’t, and where research can make the biggest difference. The Uncertainty Database helps the field prioritize the uncertainties and research that matter most for informed decisions about SAI.” The database comes as the push to research geoengineering technologies goes mainstream. As Heatmap’s Robinson Meyer reported in October, Stardust Solutions, a U.S. firm run by former Israeli government physicists, has already raised $60 million in private capital to commercialize technology that many climate activists and scientists still see as taboo to even study.
Often we hear of the carbon-absorbing potential of towering forest trees or fast-growing algae. But nary a word on the humble shrub. New research out of China suggests the bush deserves another look. An experiment in planting shrubs along the edges of western China’s Taklamakan Desert over the past four decades has not only kept desertification at bay, it’s made a dent in carbon emissions from the area. “This is not a rainforest,” King-Fai Li, a physicist at the University of California at Riverside, said in a statement. “It’s a shrubland like Southern California’s chaparral. But the fact that it’s drawing down CO2 at all, and doing it consistently, is something positive we can measure and verify from space.” The study provides a rare, long-term case study of desert greening, since this effort has endured for decades whereas one launched in the Sahara Desert by the United Nations crumbled.