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Isometric is trying to become the most trusted name in the scandal-plagued carbon market.

Regulations are probably coming for the scandal-plagued voluntary carbon market. After years of mounting skepticism and reports of greenwashing, governments are now attempting to rein in the historically unchecked web of platforms, registries, protocols, and verification bodies offering ways to offset a company’s emissions that vary tremendously in price and quality. Europe has developed its own rules, the Carbon Removal Certification Framework, while the Biden administration earlier this year announced a less comprehensive set of general principles. Plus, there are already mandatory carbon credit schemes around the world, such as California’s cap-and-trade program and the E.U. Emissions Trading System.
“The idea that a voluntary credit should be a different thing than a compliance credit, obviously doesn’t make sense, right?” Ryan Orbuch, Lowercarbon Capital’s carbon removal lead, told me. “You want it to be as likely as possible that the thing you’re buying today is going to count in a compliance regime.”
That’s where the carbon credit certification platform Isometric comes into play. Founded in 2022, the startup raised $25 million in its seed round last year, co-led by Lowercarbon and Plural, a European venture capital firm. It has created a rigorous, scientifically-driven standard for carbon removal credits, with the intention of becoming the benchmark that buyers, sellers, and other stakeholders can coalesce around. So whenever federal standards or compliance regimes do kick in, there will be no doubt whether Isometric-verified credits are up to snuff.
“Isometric was basically founded to say, look, the long-term solution here is obviously government and regulation, but in the meantime, this is too important to let the market just keep doing it like this,” Lukas May, chief commercial officer at Isometric, told me. He believes that the government’s role in the carbon market should mirror the financial sector, but instead of preventing insider trading or predatory lending, federal regulators would make high-level determinations on things like what types of credits count and how long carbon must be locked away to count as “permanent removal.” Platforms like Isometric (often referred to as registries) could then focus on setting more granular, scientifically specific requirements for particular methods of carbon removal.
The startup aims to separate itself from existing registries, which include Puro.earth, Verra, and the Gold Standard, in two big ways.
First is just a focus on science. May said that 15 of Isometric’s first 25 hires were scientists. Today, the company’s chief scientist is Jennifer Wilcox, who recently left her position on the leadership team at the Office of Fossil Energy and Carbon Management, housed within the U.S. Department of Energy. Other registries, he told me, are “filled with NGO types” and “policy people” who lack the technical background to, say, evaluate what types rock formations are best for the geological sequestration of bio-oil or how CO2 fluxes in the soil impact enhanced rock weathering. These types of in-the-weeds analyses are integral to establishing stringent protocols to validate the amount of carbon that’s actually been removed.
Additionally, May, Orbuch, and Khaled Helioui, a partner at Plural who led the firm’s investment in Isometric, all said the company fixes a key flaw in the voluntary carbon market —- alignment of financial incentives. Traditionally, carbon removal suppliers pay registries to certify their credits, which creates an incentive for registries to overlook lax standards. But Isometric is instead paid a flat fee by the buyers for performing verification work on a per-ton basis.
This year, Isometric verified its first credits ever, from the carbon removal companies Vaulted Deep, which collects sludgy, organic waste and deposits it underground, and Charm Industrial, which injects processed biomass into abandoned oil and gas wells. Credits from these two suppliers were sold to Frontier, the carbon-removal initiative led by the payments firm Stripe. Just last week, Frontier identified Isometric as its first and only leading credit issuer.
“What makes Isometric stand out is they’re explicitly focused on durable CDR [carbon dioxide removal],” Joanna Klitzke, Frontier’s procurement and ecosystem strategy lead, told me. “Durable” refers to the fact that Isometric’s projects must sequester CO2 for 1,000 years or more. “They’re building tech products that make data and reporting particularly easy for suppliers and for credit management,” she added.
Everyone is essentially trying to avoid another scandal like the one that engulfed rainforest carbon offsets, which were found to be largely worthless. The industry has thus been shifting away from more nebulous carbon offsets, which seek to avoid future emissions by preventing deforestation or funding renewables development, and towards more concrete, but often more expensive, forms of carbon removal — think direct air capture, enhanced rock weathering, or biomass carbon removal and storage, all of which have seen a boom in investment.
“As carbon removal was emerging as a new and potentially very exciting way to do this stuff, potentially more measurable and more rigorous, we couldn’t just sit and watch the same registries do the same thing,” May told me, saying doing so would “destroy trust in the carbon removal industry before it’s even off the ground.”
In a past life, Isometric’s founder and CEO, Eamon Jubbawy, founded a digital identity verification company for the financial services industry. This gave investors confidence that he could bring his expertise in trust-building and verification services to the carbon removal space.
“It’s not a like for like, but there’s a lot of overlap in terms of actually introducing efficiency, effectiveness, and having technology really open a market,” Plural’s Helioui told me. “This is not an endeavor or an opportunity where I would have been necessarily that keen to back a first-time founder, just because of the complexity of what you need to manage,” he said. “We’re really talking about market creation.”
But May doesn’t expect Isometric to totally dominate other registries. Just like there are many private banks, May envisions an “ecosystem of high quality registries,” eventually unified around a set of federal guardrails. Until then, he believes Isometric’s role is to “set a bar that is so high that the expectation and norm in the market shifts,” thus avoiding a race to the bottom where companies are able to greenwash their image with cheap, low-quality credits.
Now, not every company can afford the highest quality credits. And because of Isometric’s 1,000-year storage requirement, many cheaper, nature-based projects, such as reforestation, are excluded from its registry, even though there’s still demand for them. Orbuch told me that Isometric will continue adding guidelines for different carbon removal pathways, as it recently did for biochar, a charcoal-like brick that locks up carbon contained within biomass.
It’s still early days, and there’s plenty of room for Isometric to grow alongside the market. After all, it’s only issued 5,350 carbon removal credits to date, while nearly two billion credits have been issued in the voluntary carbon market overall.
“The whole industry needs to be scaling up,” May told me. “So we need to, in 10 years time, be, you know, issuing and verifying hundreds of millions, if not billions, of credits annually.”
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A new scientific report on the state of the industry shows a growing gap between what we can do and what we need to do.
The gap between the world’s current capacity to remove carbon dioxide from the atmosphere and the amount we’ll need to remove to materially address climate change is so large, it's hard to fathom crossing it. Now, a new report warns that the chasm is widening.
The third State of Carbon Dioxide Removal report, published on Tuesday, finds that while carbon removal research and deployment has advanced significantly in the past two years, it is still not growing quickly enough to reach the scale required to support the Paris Agreement temperature limits. Carbon emissions, meanwhile, have continued to rise globally, raising the amount of carbon removal required in turn.
“We’re seeing a lot of signs that there’s still growth happening,” Morgan Edwards, an assistant professor of public affairs at the University of Wisconsin, Madison, and one of the authors, told me. “But we need to see a step change in both early indicators like investment and also actual deployments” between now and 2030, in addition to serious emission reductions, she said.
The State of Carbon Dioxide Removal is a project between researchers at the University of Wisconsin, Madison, the University of Maryland, the University of Oxford, the Potsdam Institute for Climate Impact Research, and the German Institute for International and Security Affairs. The latest report collates a wide range of indicators to assemble a detailed portrait of progress in the sector, from the number of research papers and patents published, to project deployments, costs, and investment, to voluntary purchases and policies.
The world currently removes approximately 2.2 billion tons of carbon from the atmosphere each year through intentional human activity, the authors found, which is equivalent to about 5% of annual global carbon dioxide emissions. Nearly all of that carbon removal happens through what the authors deem “conventional” methods, which include planting trees, improved forest management, soil sequestration on farms and grasslands, and coastal wetland restoration.
Less than 1% of the 2.2 billion tons comes from “novel” methods such as direct air capture, bioenergy with carbon capture, enhanced weathering, and biochar, the most common method. Novel carbon removal increased from 1.4 million tons in 2023 to 2 million tons in 2025, with biochar responsible for most of that. In total, novel forms of carbon removal have to grow to 70 million by 2030 and 360 million by 2035 for the world to achieve net zero and begin to reverse warming back down to 1.5 degrees Celsius this century, the authors found. And that’s assuming the emissions curve starts to bend dramatically downward.
“The gap will continue to grow if we do not pursue immediate and ambitious emissions reductions today,” Edwards said. Though the Paris Agreement’s 1.5-degree goal looks to be receding further out of reach, she stressed that net-zero emissions implies significant carbon removal, regardless of what temperature target you’re aiming for.
No matter how you look at it, getting to 70 million tons by 2030 would require a major shift. Right now, the most optimistic expectation for how much the carbon removal industry will grow by that point, based on corporate announcements, is about 42 million tons per year by 2030, according to the report. The capacity in the pipeline from projects that are under construction, however, amounts to just 8.4 million by 2030. At the country level, only about a third of national climate strategies even mention novel carbon removal methods, and overall carbon removal ambition among countries would have to double to close the 2030 gap.
This isn’t impossible — other technologies have achieved comparable growth rates. The report’s authors estimate that carbon removal would have to scale at speeds similar to solar power and electric vehicles. Unlike those singular solutions, however, carbon removal consists of many different technologies that intersect with a range of industries — oil and gas drilling, farming, forestry, mining — and therefore may not scale as linearly. Also, unlike EVs and solar, carbon removal isn’t a useful product with an obvious market. It’s a public good, like waste management — and an expensive one, at that.
Carbon removal funding is also highly concentrated, the authors warn, making the industry vulnerable to sudden shifts in policy and investment appetite. For example, Microsoft alone has made more than 80% of carbon removal purchases to date; then in April it confirmed it was pausing procurements, leaving behind major uncertainty over who, if anyone, will fill its role in the market. Similarly, most government funding for pilot projects to date has concentrated in three countries — the U.S., Sweden, and Denmark — but more recently the U.S. has dismantled much of its support.
The industry is also concentrated in terms of deployment. Biochar and bioenergy with carbon capture account for almost all of the 2 million tons of novel removals the authors identified. Direct air capture facilities removed just 1,500 tons in 2025, according to the report. All of that came from Climeworks’ two facilities in Iceland — Orca and Mammoth — and it’s significantly less than the roughly 40,000 tons these facilities were designed to capture each year. (While there are a few other direct air capture plants operating, they have not yet had any removals certified by a third party, and so were not included in the estimate.)
There are some bright spots in the report. Research funding, scientific publications, demonstration projects, public policies, and private investment in carbon removal are all trending up. It’s just that the results of these efforts — in terms of patents, projects under construction, and the amount of carbon being removed — are uneven.
While the report is a valiant effort to assess how far carbon removal has come, the overall picture remains deeply uncertain. That word, “uncertain,” appears over and over, applying to such questions as:
The authors emphasize the need for more research, public policy, and funding to narrow these uncertainties — especially on the demand side of the equation.
“Both demand and supply side policies are important for innovation, but much of the policy we’ve seen for CDR today has been more supply-side focused,” said Edwards. “There’s a need for a strong signal to companies who are developing these technologies and implementing CDR on the ground that the demand will be there.”
On Anthropic’s IPO, home energy rebates, and French rare earths
Current conditions: The most powerful storm to hit Western Australia in 49 years has deluged the capital of Perth • Temperatures in the Arizonan metropolis of Phoenix are climbing to 103 degrees Fahrenheit today, and will stay around that level all week • South Georgia Island, a British overseas territory near Antarctica in the Atlantic, is bracing for heavy snow.
Anthropic, the artificial intelligence giant behind the chatbot Claude, filed the first documents to the Securities and Exchange Commission to make its stock market debut. The company submitted a confidential S-1, meaning that — unlike the recent SpaceX filing — the details aren’t yet publicly available. By doing so, Anthropic has “the option to go public after the SEC completes its review,” the company wrote Monday in a blog post. The number of shares to be offered and the price “have not yet been set.” The IPO could have big energy implications. Unlike some hyperscalers, who have pushed back against the public blowback to data centers, Anthropic vowed three months ago to pay to offset electricity price hikes from its server farms, as I previously wrote. Coupled with the news yesterday morning that Iran had broken off negotiations with the U.S. to end the conflict blocking the Strait of Hormuz, Monday offered clear evidence of what Heatmap’s Robinson Meyer described as the electricity economy “having its moment.”
Here are a couple more data points: Later on Monday, Berkshire Hathaway, the investment company formerly run by Warren Buffett, announced plans to invest $80 billion into Google owner Alphabet’s data center buildout. Meanwhile, Mike Schroepfer, the former chief technology officer of Facebook parent Meta Platforms, raised $250 million for his climate-tech venture capital firm Gigascale, Bloomberg reported.
On Monday, the Department of Energy released its long-awaited guidance on how to use the remaining home rebate programs left intact after Republicans repealed broad swaths of the Inflation Reduction Act. Unsurprisingly, the program — which had a complicated rollout — initially meant to support deployment of electric heating is now no longer available for homeowners hoping to switch from gas to electric.
“Make no mistake: This is part of a coordinated strategy to boost fossil fuel profits at the expense of working families,” Tony Sirna, the deputy policy director of buildings at the progressive climate group Evergreen Action, said in a statement. “These home electrification rebates were a lifeline for families who otherwise could not afford to upgrade their homes and escape rising energy costs. Gutting them ensures millions of households remain captive customers of greedy gas utilities now poised to saddle ratepayers with up to $1.4 trillion in costs for pipelines that will ultimately be underused or entirely unnecessary.”
Allow me to break with journalistic convention and lead with the dog-bites-man story: China, already the world leader in building its own nuclear reactors, just installed the containment dome on its latest reactor at the Lianjiang nuclear power plant in Guangdong province, World Nuclear News reported. This is a vital step toward completing construction, though not unusual in a country with a whopping three dozen commercial fission reactors underway.
And now for the man-bites-dog. The United Kingdom, whose nuclear industry has long suffered the same anemia as that in the United States, just reached a major milestone on its long-delayed Hinkley Point C nuclear site in southwest England. On Monday, NucNet reported that the second reactor pressure vessel had been lifted into place by the world’s largest crane.
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A federal judge in Denver halted the Trump administration’s effort to carve up Boulder’s National Center for Atmospheric Research by handing over a supercomputing center to the University of Wyoming. The 38-page injunction, detailed in the Colorado Sun, called the move by the National Science Foundation to divest from the supercomputing center “arbitrary, capricious, an abuse of discretion, or otherwise not in accordance with law.” Senior U.S. District Judge R. Brooke Jackson argued that his decision was necessary because a lawsuit filed in March by the University Corporation for Atmospheric Research was likely to succeed, and “too much damage had already been done to the supercomputing center’s operations.”
The U.S. wants to quit Chinese minerals. But mining all those metals domestically is virtually impossible. As a result, one of the two big rare earths champions in which the Trump administration took an equity stake is now looking to Europe. On Monday, USA Rare Earth announced plans to invest more than $204 million into producing rare earths and magnets made from them. The deal, per Mining.com, builds off a previous agreement to acquire a stake in the French rare-earth processor Carester for $47 million.
France isn’t the only country netting some green investment. On Monday, Italian oil giant Eni announced its own bet on battery manufacturing. The company reached a deal for a joint venture with Seri Industrial Group to develop an integrated industrial supply chain for lithium-iron-phosphate batteries. The deal will close by the end of this week. Eni said the deal “adds another piece to the puzzle of completing the supply chain from critical minerals to the production of energy storage.”
Rob gets into the latest state-level policy developments with Heatmap’s own Emily Pontecorvo.
When New York passed its first major climate law in 2019, climate advocates hailed the work as a milestone: The Empire State vowed to cut its carbon emissions by 40% by 2030, as compared to their 1990 levels, giving it some of the world’s most ambitious subnational climate policy. But last week, Governor Kathy Hochul and the state legislature moved to rewrite key provisions in that law, weakening deadlines and redefining its emissions math.
What happened? And would New York have ever been able to hit its 2030 goal? On this episode of Shift Key, Rob is joined by Emily Pontecorvo, a founding staff writer at Heatmap. They discuss how New York has changed its targets, why it has altered its approach to natural gas, and whether state-level climate goals can survive an age of affordability politics.
Shift Key is hosted by Robinson Meyer, the founding executive editor of Heatmap News.
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Here is an excerpt from their conversation:
Robinson Meyer: The other thing they did was this accounting change around how the state law considers methane. Can you talk a little bit about that?
Emily Pontecorvo: So, one of the things that made the New York climate law especially ambitious was they created in the law this rule that they were going to account for methane very differently than the way that almost any other state and most of the rest of the world does. And I’m sure listeners know, but methane is another greenhouse gas. It’s much more powerful than carbon dioxide, but it doesn’t stay in the atmosphere as long. It breaks down more quickly.
And so when you’re trying to kind of convert all greenhouse gases into one number, a carbon dioxide equivalent, there’s different ways to do that. You can measure methane on its effect on the atmosphere on warming over a 20-year period, which will make it look very, very strong because it’s strongest during that period. Or you can measure it over a 100-year period. These are the two common ways of doing it. And while much of the rest of the world uses the 100-year global warming potential of methane, New York was using the 20-year, which meant that all of New York’s methane emissions from landfills, from natural gas, those emissions had a much bigger effect on the state’s overall emissions. So it made the overall emissions seem higher on paper than if New York had used this other, 100-year global warming potential.
And there was actually a second thing that New York did that was unique, which is the state said, we’re not just going to account for the methane emissions that happen within our economy, within our borders. We’re also going to take ownership and take responsibility for methane from upstream from the natural gas that we use. So New York gets a lot of its natural gas from Pennsylvania, from West Virginia. And so New York is keeping on its own books the methane that’s leaks out of the drilling and pipelines and other infrastructure in those other states.
And so the big change in the budget deal was one, that New York was no longer going to include those emissions upstream in its own ledger. And two, that it’s going to switch to this 100-year accounting global warming potential. And so those two things combined, it really just takes a lot of carbon dioxide equivalent, or it takes a lot of methane off of New York’s books and makes the distance between now and the 2030 goal look a lot smaller.
Meyer: Stepping back, methane, as we’ve been saying, is a short-lived greenhouse gas. It’s extremely potent when it’s first released into the atmosphere, and then it quickly breaks down into carbon dioxide. And what’s interesting about it is that if you look at a molecule of methane, it is actually going to trap far more heat.
So methane, CH4, it will eventually oxidize down and break down into CO2. A singular molecule, the carbon in a molecule of methane, is going to trap more heat over its lifetime as an emission in the atmosphere in its CO2 form than in its CH4 form. And that’s because CO2 is extremely long-lived in the atmosphere. Basically, methane lasts 20 years in the atmosphere or so. It has this somewhat unstable and changing rate of decay in the atmosphere, but it’s not going to last longer than 100 years. And then CO2 will last roughly 1,000 years in the atmosphere. It essentially has a geological time scale in the atmosphere.
So methane’s going to matter way more later on as CO2. But as the U.S. energy system has come to rely more on natural gas, and therefore, as methane emissions have gone up, because methane is the largest component of natural gas, there was an effort to basically ... I don’t want to say make the methane emissions look worse, but like, try to capture — I think the counterargument here was that a lot of short-term warming seems to be coming from methane, and so therefore we should make methane look worse in the accounting than it might if we took a totally kind of apolitical, long-termist, geological accounting scale.
You can find a full transcript of the episode here.
Mentioned:
How New York Is Weakening Its Climate Law, by Emily Pontecorvo
LA Times: After heated debate, California updates key climate limit. Critics say it’s a retreat
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