Carbon Removal
The Sorry State of Carbon Removal
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.
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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 CEO of Climeworks argues that the buildout of technology to suck greenhouse gas from the air should be considered part of the cost of artificial intelligence.
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Microsoft dominated this year.
It’s been a quiet year for carbon dioxide removal, the nascent industry trying to lower the concentration of carbon already trapped in the atmosphere.
After a stretch as the hottest thing in climate tech, the CDR hype cycle has died down. 2025 saw fewer investments and fewer big projects or new companies announced.
This story isn’t immediately apparent if you look at the sales data for carbon removal credits, which paints 2025 as a year of breakout growth. CDR companies sold nearly 30 million tons of carbon removal, according to the leading industry database, CDR.fyi — more than three times the amount sold in 2024. But that topline number hides a more troubling reality — about 90% of those credits were bought by a single company: Microsoft.
If you exclude Microsoft, the total volume of carbon removal purchased this year actually declined by about 100,000 tons. This buyer concentration is the continuation of a trend CDR.fyi observed in its 2024 Year In Review report, although non-Microsoft sales had grown a bit that year compared to 2023.
Trump’s crusade against climate action has likely played a role in the market stasis of this year. Under the Biden administration, federal investment in carbon removal research, development, and deployment grew to new heights. Biden’s Securities and Exchange Commission was also getting ready to require large companies to disclose their greenhouse gas emissions and climate targets, a move that many expected to increase demand for carbon credits. But Trump’s SEC scrapped the rule, and his agency heads have canceled most of the planned investments. (At the time of publication, the two direct air capture projects that Biden’s Department of Energy selected to receive up to $1.2 billion have not yet had their contracts officially terminated, despite both showing up on a leaked list of DOE grant cancellations in October.)
Trump’s overall posture on climate change reduced pressure on companies to act, which probably contributed to there being fewer new buyers entering the carbon removal market, Robert Hoglund, a carbon removal advisor who co-founded CDR.fyi, told me. “I heard several companies say that, yeah, we wouldn't have been able to do this commitment this year. We're glad that we made it several years ago,” he told me.
Kyle Harrison, a carbon markets analyst at BloombergNEF, told me he didn’t view Microsoft’s dominance in the market as a bad sign. In the early days of corporate wind and solar energy contracts, he said, Microsoft, Google, and Amazon were the only ones signing deals, which raised similar questions about the sustainability of the market. “But what it did is it created a blueprint for how you sign these deals and make these nascent technologies more financeable, and then it brings down the cost, and then all of a sudden, you start to get a second generation of companies that start to sign these deals.”
Harrison expects the market to see slower growth in the coming years until either carbon removal companies are able to bring down costs or a more reliable regulatory signal puts pressure on buyers.
Governments in Europe and the United Kingdom introduced a few weak-ish signals this year. The European Union continued to advance a government certification program for carbon removal and expects to finalize methodologies for several CDR methods in 2026. That government stamp of approval may give potential buyers more confidence in the market.
The EU also announced plans to set up a carbon removal “buyers’ club” next year to spur more demand for CDR by pooling and coordinating procurement, although the proposal is light on detail. There were similar developments in the United Kingdom, which announced a new “contract for differences” policy through which the government would finance early-stage direct air capture and bioenergy with carbon capture projects.
A stronger signal, though, could eventually come from places with mandatory emissions cap and trade policies, such as California, Japan, China, the European Union, or the United Kingdom. California already allows companies to use carbon removal credits for compliance with its cap and invest program. The U.K. plans to begin integrating CDR into its scheme in 2029, and the EU and Japan are considering when and how to do the same.
Giana Amador, the executive director of the U.S.-based Carbon Removal Alliance, told me these demand pulls were extremely important. “It tells investors, if you invest in this today, in 10 years, companies will be able to access those markets,” she said.
At the same time, carbon removal companies are not going to be competitive in any of these markets until carbon trades at a substantially higher price, or until companies can make carbon removal less expensive. “We need to both figure out how we can drive down the cost of carbon removal and how to make these carbon removal solutions more effective, and really kind of hone the technology. Those are what is going to unlock demand in the future,” she said.
There’s certainly some progress being made on that front. This year saw more real-world deployments and field tests. Whereas a few years ago, the state of knowledge about various carbon removal methods was based on academic studies of modeling exercises or lab experiments, now there’s starting to be a lot more real-world data. “For me, that is the most important thing that we have seen — continued learning,” Hoglund said.
There’s also been a lot more international interest in the sector. “It feels like there’s this global competition building about what country will be the leader in the industry,” Ben Rubin, the executive director of the Carbon Business Council, told me.
There’s another somewhat deceptive trend in the year’s carbon removal data: The market also appeared to be highly concentrated within one carbon removal method — 75% of Microsoft’s purchases, and 70% of the total sales tracked by CDR.fyi, were credits for bioenergy with carbon capture, where biomass is burned for energy and the resulting emissions are captured and stored. Despite making up the largest volume of credits, however, these were actually just a rare few deals. “It’s the least common method,” Hoglund said.
Companies reported delivering about 450,000 tons of carbon removal this year, according to CDR.fyi’s data, bringing the cumulative total to over 1 million tons to date. Some 80% of the total came from biochar projects, but the remaining deliveries run the gamut of carbon removal methods, including ocean-based techniques and enhanced rock weathering.
Amador predicted that in the near-term, we may see increased buying from the tech sector, as the growth of artificial intelligence and power-hungry data centers sets those companies’ further back on their climate commitments. She’s also optimistic about a growing trend of exploring “industrial integrations” — basically incorporating carbon removal into existing industrial processes such as municipal waste management, agricultural operations, wastewater treatment, mining, and pulp and paper factories. “I think that's something that we'll see a spotlight on next year,” she said.
Another place that may help unlock demand is the Science Based Targets initiative, a nonprofit that develops voluntary standards for corporate climate action. The group has been in the process of revising its Net-Zero Standard, which will give companies more direction about what role carbon removal should play in their sustainability strategies.
The question is whether any of these policy developments will come soon enough or be significant enough to sustain this capital-intensive, immature industry long enough for it to prove its utility. Investment in the industry has been predicated on the idea that demand for carbon removal will grow, Hoglund told me. If growth continues at the pace we saw this year, it’s going to get a lot harder for startups to raise their series B or C.
“When you can't raise that, and you haven't sold enough to keep yourself afloat, then you go out of business,” he said. “I would expect quite a few companies to go out of business in 2026.”
Hoglund was quick to qualify his dire prediction, however, adding that these were normal growing pains for any industry and shouldn’t be viewed as a sign of failure. “It could be interpreted that way, and the vibe may shift, especially if you see a lot of the prolific companies come down,” he said. “But it’s natural. I think that’s something we should be prepared for and not panic about.”
With new corporate emissions restrictions looming, Japanese investors are betting on carbon removal.
It’s not a great time to be a direct air capture company in the U.S. During a year when the federal government stepped away from its climate commitments and cut incentives for climate tech and clean energy, investors largely backed away from capital-intensive projects with uncertain economics. And if there were ever an expensive technology without a clear path to profitability, it’s DAC.
But as the U.S. retrenches, Japanese corporations are leaning in. Heirloom’s $150 million Series B round late last year featured backing from Japan Airlines, as well as major Japanese conglomerates Mitsubishi Corporation and Mitsui & Co. Then this month, the startup received an additional infusion of cash from the Development Bank of Japan and the engineering company Chiyoda Corporation. Just days later, DAC project developer Deep Sky announced a strategic partnership with the large financial institution Sumitomo Mitsui Banking Corporation to help build out the country’s DAC market.
Experts told me these investments probably won’t lead to much large-scale DAC deployment within Japan, where the geology is poorly suited to carbon sequestration. Many of these corporations likely don’t even plan to purchase DAC-based carbon offsets anytime soon, as they haven’t made the type of bold clean energy commitments seen among U.S. tech giants, and cheaper forestry offsets still dominate the local market.
Rather, contrary to current sentiment in the U.S., many simply view it as a fantastic business opportunity. “This is actually a great investment opportunity for Japanese companies now that the U.S. companies are out,” Yuki Sekiguchi, founder of Startup Navigator for Climate Tech and the leader of a group for the Japanese clean tech community, told me. “They get to work with really high caliber startups. And now everybody’s going to Japan to raise money and have a partnership, so they have a lot to choose from.”
Chris Takigawa, a director at the Tokyo-based venture firm Global Brain, agreed. Previously he worked at Mitsubishi, where he pioneered research on CO2 removal technologies and led the company’s investment in Heirloom. “Ultimately, if there’s going to be a big project, we want to be part of that, to earn equity from that business,” he told me of Mitsubishi’s interest in DAC. “We own large stakes in mining assets or heavy industrial assets. We see this as the same thing.”
Takigawa said that he sees plenty of opportunities for the country to leverage its engineering and manufacturing expertise to play a leading role in the DAC industry’s value chain. Many Japanese companies have already gotten a jump.
To name just a few, NGK Insulators is researching ceramic materials for carbon capture, and semiconductor materials company Tokyo Ohka Kogyo is partnering with the Japanese DAC startup Carbon Xtract to develop and manufacture carbon capture membranes. The large conglomerate Sojitz is working with academic and energy partners to turn Carbon Xtract’s tech into a small-scale “direct air capture and utilization" system for buildings. And the industrial giant Kawasaki Heavy Industries has built a large DAC pilot plant in the port city of Kobe, as the company looks to store captured CO2 in concrete.
During his time at Mitsubishi, as he worked to establish the precursor to what would become the Japan CDR Coalition, Takigawa told me he reached out to “all the companies that I could think about that might be related to DAC.” Most of them, he found, were already either doing research or investing in the space.
Japan has clear climate targets — reach net-zero by 2050, with a 60% reduction in emissions by 2035, and a 73% reduction by 2040, compared to 2013 levels. It’s not among the most ambitious countries, nor is it among the least. But experts emphasize that its path is stable and linear.
“In Japan, policy is a little more top down,” Sekiguchi told me. Japan’s business landscape is dominated by large conglomerates and trading companies, which Sekigushi told me are “basically tasked by the government” to decarbonize. “And then you have to follow.”
Unlike in the U.S., climate change and decarbonization are not very politically charged issues in Japan. But at the same time, there’s little perceived need for engagement. A recent Ipsos poll showed that among the 32 countries surveyed, Japanese citizens expressed the least urgency to act on climate change. And yet, there’s broad agreement there that climate change is a big problem, as 81% of Japanese people surveyed said they’re worried about the impacts already being felt in the country.
The idea that large corporations are being instructed to lower their emissions over a decades-long timeframe is thus not a major point of contention. The same holds for Japan’s now-voluntary emissions trading scheme, called the GX-ETS, that was launched in 2023. This coming fiscal year, compliance will become mandatory, with large polluters receiving annual emissions allowances that they can trade if they’re above or below the cap.
International credits generated from DAC and other forms of carbon removal, such as bioenergy with carbon capture and storage, are accepted forms of emissions offsets during the voluntary phase, making Japan the first country to include engineered credits in its national trading scheme. But to the dismay of the country’s emergent carbon removal sector, it now appears that they won’t be included in the mandatory ETS, at least initially. While a statement from the Chairman and CEO of Japan’s Institute of Energy Economics says that “carbon removal will be recognized in the future as credits,” it’s unclear when that will be.
Sekiguchi told me this flip-flop served as a wake-up call, highlighting the need for greater organizing efforts around carbon removal in Japan.
“Now those big trading houses realize they need an actual lobbying entity. So they created the Japan CDR Coalition this summer,” she explained. Launched by Mitsubishi, the coalition’s plans include “new research and analysis on CDR, policy proposals, and training programs,” according to a press release. The group’s first meeting was this September, but when I reached out to learn more about their efforts, a representative told me the coalition had “not yet reached a stage where we can effectively share details or outcomes with media outlets.”
Sekiguchi did tell me that the group has quickly gained momentum, growing from just a handful of founding companies to a membership of around 70, including representatives from most major sectors such as shipping, chemicals, electronics, and heavy industry.
Many of these companies — especially those in difficult to decarbonize sectors — might be planning for a future in which durable engineered carbon offsets do play a critical role in complying with the country’s increasingly stringent ETS requirements. After all, Japan is small, mountainous, densely populated, and lacks the space for vast deployments of solar and wind resources, leaving it largely dependent on imported natural gas for its energy needs. “We’ll always be using fossil fuels,” Takigawa told me, “So in order to offset the emissions, the only way is to buy carbon removals.”
And while the offset market is currently dominated by inexpensive nature-based solutions, “you have to have an expectation that the price is going to go up,” Sekiguchi told me. The project developer Deep Sky is certainly betting on that. As the company’s CEO Alex Petre told me, “Specifically in Japan, due to the very strong culture of engineering and manufacturing, there is a really deep recognition that engineered credits are actually a solution that is not only exciting, but also one where there’s a lot of opportunity to optimize and to build and to deploy.”
As it stands now though, the rest of the world may expect a little too much of Japan’s nascent DAC industry, experts told me.
Take the DeCarbon Tokyo conference, which was held at the beginning of December. Petre, Sekiguchi, and Takigawa all attended. Petre’s takeaway? “Deep Sky is not the only company that has figured out that Japan is really interested in decarbonization,” she put it wryly. DAC companies Climeworks and AirMyne were also present, along with a wide range of other international carbon removal startups such as Charm Industrial, Captura, and Lithos Carbon.
Overall, Sekiguchi — who attended the conference in her role as a senior advisor to the Bay Area-based AirMyne — estimated that about 80% of participants were international companies or stakeholders looking for Japanese investment, whereas “it should be the other way around” for a conference held in Tokyo.
“I think there’s big potential, Japan can be a really big player,” she told me. But perhaps Americans and Europeans are currently a little overzealous when it comes to courting Japanese investors and pinning their expectations on the country’s developing decarbonization framework. “There’s so much hope from the international side. But in Japan it’s still like, okay, we are learning, and we are going steadily but kind of slowly. So don’t overwhelm us.”