Digest

Today’s thread is about plumbing. Not announcements, not moonshots. The pipes and ledgers that decide whether a ton of CO2 removed actually counts as a ton. Four of today’s five stories are about the scaffolding under CDR: a new biochar methodology from Gold Standard, a leadership change at the biggest mineralization player, Japan opening seabed for CO2 storage, and a reef-linked biochar partnership in Australia. The fifth, the Captain’s Log, argues the old carbon accounting layer is cracking and a parallel trust stack is being built to replace it. Read together, the day is less about new technology and more about who gets to certify, operate, and store removals at scale. ...

Today’s three stories share a single thread: carbon removal and storage is crossing from slide decks into steel. Pipe bridges are being hoisted, offshore wells are taking CO2, and a third purpose-built ship is joining a cross-border fleet. The bottleneck is shifting from “can we build it” to “can we connect the pieces fast enough.” Infrastructure is the story now Stockholm Exergi lifted a pipe bridge roughly the length of a football field into place this week at its Värtan site, a visible milestone for the 720,000 ton per year bioenergy carbon capture project. Bioenergy with carbon capture and storage, or BECCS, pulls CO2 out of biomass flue gas and ships it to permanent storage. The project is one of the largest BECCS builds in the world and is backed by a Swedish reverse auction contract plus a Microsoft offtake deal for multi-million tons over ten years. ...

Today’s three stories share one uncomfortable thread: the accounting rules that CDR markets depend on are being rewritten in real time, and a lot of what counts as “removal” today will not count tomorrow. The MRV reckoning is here CarbonPlan’s review of Lithos Carbon, published this week, is the clearest sign yet that enhanced rock weathering (spreading crushed basalt on fields to pull CO2 from the air) is running ahead of its measurement science. The review questions how Lithos models cation loss, how it handles soil sampling variance, and whether current protocols can distinguish a real removal signal from background noise. This matters because Lithos has been one of the better-funded ERW suppliers, with Frontier among its buyers. If the critique lands, every ERW developer will face tougher questions from buyers about measurement, reporting, and verification — the MRV stack that turns a field trial into a tonne you can sell. ...

Biochar spent most of the last decade as a cottage industry. Hundreds of small producers, bespoke feedstocks, regional offtake deals, a long tail of sub-10,000 tonne projects. Today’s story is about what happens when that phase ends. Consolidation is now the defining pattern in biochar, and it is arriving faster than most CDR watchers expected. From artisan to industrial The tell is in the deal flow. Larger producers are absorbing smaller ones, platform companies are rolling up regional operators, and strategic buyers from forestry, agriculture, and waste management are taking equity stakes in pure-play biochar firms. The logic is straightforward. Biochar’s unit economics depend on three things: cheap and consistent biomass, high utilization of pyrolysis capacity, and access to durable offtake contracts. None of those three reward fragmentation. ...

The week CDR stopped being graded only on tons Something shifted this week. Three separate stories, from three different corners of the field, all pointed at the same question: what counts as a good ton of carbon removal? For two years the answer has been “a cheap one that verifies.” This week that answer started to break. The money is moving, but not where the headlines suggest The Captain’s Log tracked five numbers from the past seven days. The pattern underneath them is what matters. Capital is still flowing into CDR, but it is flowing toward projects that can prove durability and clean supply chains, not just low price per ton. Buyers who spent 2024 chasing the cheapest verified credit are now asking harder questions about what happens in year 40, where the energy comes from, and who lives near the project. ...

The Day CDR Started Writing Its Own Rulebook Today’s four stories point at one pattern: the CDR field is no longer waiting for governments to define what counts as good carbon removal. Buyers, nonprofits, and companies are writing the rules in real time, and the definitions they pick now will shape which projects get funded for the next decade. That is the headline. The rulebook is being drafted in public, by the people placing the bets. ...

Today’s signal is a widening split in carbon markets. Engineered removals are posting record volumes and long-term contracts, while a major avoided-emissions category just got downgraded by an order of magnitude. Buyers are voting with their checkbooks, and the vote is for durable, measurable tons. The record month nobody should gloss over March 2026 logged 1.51 million tonnes of CDR purchases in a single month. That is not a cumulative figure. It is one month. The pace suggests 2026 will blow past every prior year, and the mix is shifting toward contracts with real delivery schedules rather than speculative forward offtakes. The buyers driving this are familiar names, but the volumes per deal are climbing. ...

The gap between carbon credit claims and real-world carbon removal just got another data point. A new study finds that REDD+ avoided-deforestation projects overclaimed their climate benefit by a factor of 10.7. Meanwhile, buyers and developers are shifting toward removal credits with tighter measurement, and the signals are everywhere in today’s stories. The crediting gap is reshaping where money flows A peer-reviewed study found that REDD+ projects, which sell credits based on forests they claim would have been cut down, overstated their avoided deforestation by 10.7 times on average. That means for every ton of CO2 these credits claimed to protect, roughly a tenth of a ton was real. This isn’t new territory. Earlier analyses flagged similar problems. But the scale of the overclaim keeps getting confirmed, and it matters because these credits still circulate in voluntary markets. ...

The CDR market is splitting into two lanes: one where small hardware companies race to prove unit economics, and another where policy and credit-quality questions threaten to reshape demand. Today’s five stories sit neatly across that divide. Ucaneo fires up a room-temperature DAC plant in Berlin German startup Ucaneo has opened a direct air capture facility in Berlin that operates at room temperature, a notable departure from the energy-intensive thermal processes most DAC companies rely on. The plant targets 150 tonnes of CO₂ removed per year by July 2026. That is tiny by industrial standards, but the room-temperature angle matters. Heat is the biggest cost driver in conventional DAC. If Ucaneo’s sorbent chemistry holds up at steady state, the energy bill per tonne could drop meaningfully. The next milestone to watch: whether the plant hits its 150 t/yr nameplate and what the verified cost per tonne looks like once it does. ...

CDR has a growing disconnect between paper and practice. Permits for carbon removal projects keep stacking up, but the money to build them is drying up. That gap, between regulatory green lights and actual capital deployment, is the most important pattern in today’s stories. The permits-to-payments gap Captain’s CDR Log #105 puts a sharp point on it: the pipeline of permitted CDR projects is expanding, yet financing has stalled. Permits are necessary but not sufficient. A permit lets you build. A check lets you actually do it. Right now, the industry has more of the former and not enough of the latter. ...