CDR

What “soil carbon” means in a CDR context Soil carbon as a removal pathway is the deliberate addition — or protection — of organic carbon in agricultural and grassland soils so that atmospheric CO₂ ends up stored as soil organic matter rather than circulating in the air. In practice, almost every commercial project in the directory today is doing this through biochar: pyrolysing biomass into a stable, carbon-rich solid and burying it in farmland. A smaller share of projects pursue management-based sequestration (cover crops, no-till, compost, agroforestry) where the carbon gain comes from shifting the balance between plant input and microbial decomposition. The two approaches share a destination — carbon in soil — but the durability profiles and the science behind them are very different, which is the single most important thing for a buyer or journalist to internalise before going further. ...

Each dot on this scatter is a single CDR pathway - direct air capture, enhanced rock weathering, biochar, ocean alkalinity, mineralization, and the rest. The horizontal axis counts how many companies are working that pathway; the vertical axis sums the employees across those companies. Linear scales on both, so distance on the page matches distance in the numbers. What this view reveals that a headcount table cannot is the shape of the industry. A pathway sitting high and to the right is crowded with firms and staffed deeply. One sitting high but to the left is a pathway dominated by a few large companies. Low and to the right means many small teams chasing the same idea. The spread between these corners is the story of where capital and talent have actually landed, versus where the field is still a cottage. ...

Captain Drawdown’s weekly Sunday selection — 21 candidate stories considered, 6-9 picked. Each link carries our 1-2 sentence take so you don’t have to click everything to know what’s there. The week’s signal sits at the intersection of policy retrenchment and methodological maturation: U.S. disclosure rules are being unwound just as Europe and Asia tighten market plumbing, and the science community is sharpening the question of what “permanent” actually buys you. Two large buyer deals also landed, both shaped less by climate ambition than by procurement strategy and portfolio engineering. ...

Take on a podcast episode from Reversing Climate Change, originally published Fri, 15 Ma. Listen: https://podcasters.spotify.com/pod/show/reversingclimatechange/episodes/399-How-to-Pitch-Terraset-and-other-carbon-removal-buyersw-Taylor-Insley--Terraset-e3jd1gr TL;DR Taylor Insley (Terraset) says ~75% of developer interactions at Carbon Unbound are bad pitches — ambush style, no social grace. Believable and useful. Terraset claims 6-8x leverage per dollar deployed via its revolving fund model. First time I’ve seen that ratio cited publicly for them. Terraset gets ~450 projects in its intake pipeline against a team of three. Diligence bandwidth is the binding constraint, not capital appetite. Insley’s actual advice: relationship-building beats first-impression perfection; she discounts bad early pitches if the project matures. Ross’s “minor leagues” framing — Milky Wire/Terraset before Frontier/Microsoft — is the most operationally useful frame in the episode. Episode link. Ross Kenyon interviews Taylor Insley, Director of Strategic Growth at Terraset, the tax-deductible philanthropic CDR buyer. The episode is essentially a sales-craft conversation for developers pitching small-to-mid catalytic buyers, anchored on a Carbon Unbound Vancouver panel Insley did earlier this year. There’s also a long Ross monologue on status and in-group dynamics that you can safely skip. ...

Take on a podcast episode from The CDR Policy Scoop, originally published Sun, 24 Ma. Listen: https://shows.acast.com/the-cdr-policy-scoop/episodes/lulucf-carbon-farming-and-the-crcf-review-with-asger-strange TL;DR Carbon farming side of the CRCF (Carbon Removal Certification Framework) lacks the buyer momentum permanent removals have — no offtake equivalent of the Buyers Club in sight. Olesen pushes “performance certificates” as the right instrument for land that stays in production: an inventory-aligned reporting unit, not a credit. Useful framing. Strong claim: leakage and permanence have no role in this tool, and only simple stock-change additionality applies. Will be controversial but internally consistent. EU bottom-up inventory logic vs SBTi FLAG’s top-down benchmark is a real collision course — first time I’ve seen it spelled out this cleanly. Wishlist for Q4 national targets & flexibilities proposal: shift the buy-side obligation from member states to sectors/companies, keep Article 6 out, give CSRD↔CRCF a legal hook. The CDR Policy Scoop, hosted by Sebastian Manhart and Eve Tamme, brings back Asger Strange Olesen (International Woodland Company, EU Carbon Removal Expert Group) to walk through where the carbon-farming half of the CRCF actually sits after the recent CRCF Days. It’s a policy-mechanics conversation: methodologies adopted (soil, peatlands, afforestation), why credits are the wrong tool for most European farmland, and what the upcoming CRCF review and Q4 flexibilities proposal need to deliver. ...

Take on a podcast episode from The Carbon Curve, originally published Thu, 16 Ap. Listen: https://carboncurve.substack.com/p/seven-buyers-in-a-trench-coat TL;DR Microsoft pausing new durable CDR purchases isn’t the story — the story is they were ~80-90% of the market to begin with. Correct framing. Governments committed $45M to CDR purchases, spent ~$0; private sector spent $10.5B. Striking number, worth citing. Jack’s case: voluntary buying was always a house of cards; policy has to take over. Hard to argue with at this point. Defense of enhanced oil recovery as a legitimate scaling pathway for direct air capture. Will annoy some, but the argument is coherent. Dream policy: low-carbon-intensity product standard embedded in trade, with CDR compliance pathways. Interesting, underdeveloped here. Naim Merchant interviews Jack Andreasen Cavanaugh, who runs the Carbon Management Program at Columbia’s Center on Global Energy Policy and previously led carbon management policy at Breakthrough Energy. The episode is a reaction to Heatmap’s reporting that Microsoft is pausing new durable carbon removal purchases, and Cavanaugh’s weekend piece arguing the real failure is governmental, not corporate. It’s the cleanest articulation I’ve heard of “the voluntary market was always structurally fragile” — read the episode post if you don’t have an hour. ...

This chart is a stacked horizontal bar showing CDR-attributable headcount across pathways on the vertical axis, with each bar segmented by business focus: pure-play companies whose entire reason for existing is CDR, divisions inside larger firms where CDR is one line of business, and ecosystem players who sell tools, verification, brokerage, or software into the space. Bar length is total attributed workers; the color split is where those workers actually sit. ...

Direct Air Capture (DAC) is the use of engineered equipment — fans, sorbents, solvents, or electrochemical cells — to separate carbon dioxide from ambient air, concentrate it, and hand it off to either permanent storage or industrial use. Unlike point-source capture at a power plant or cement kiln, DAC has no flue gas to draw from: it works against an atmospheric concentration of roughly 425 ppm, which is the central reason it is both energy-intensive and, when paired with geological storage, one of the most durable carbon dioxide removal (CDR) options available. For buyers and policymakers building portfolios with century-plus permanence, DAC sits alongside mineralization and bio-oil sequestration as a small-but-growing share of the durable removals market. ...

This chart is a stacked bar count of every company in the CDR Directory, grouped along the x-axis by removal pathway (direct air capture, enhanced weathering, biochar, ocean alkalinity, and so on), with each bar segmented by business focus: pure-play producers, brokers and marketplaces, and firms where CDR is a side business bolted onto a different core model. The total height tells you which pathways are crowded with company formation. The segment mix tells you something a raw count hides: whether a pathway’s apparent size is built on operators actually delivering tonnes, on intermediaries reselling them, or on incumbents whose CDR line is a minor adjunct. Two pathways with identical totals can have very different underlying economies once you see the split. ...

Captain Drawdown’s weekly Sunday selection — 15 candidate stories considered, 6-9 picked. Each link carries our 1-2 sentence take so you don’t have to click everything to know what’s there. The week’s signal isn’t a single megadeal — it’s the slow consolidation of plumbing. Microsoft re-entered the buyer narrative just as Europe’s Buyers’ Club inched toward operational status and Singapore-plus-World-Bank stood up new Article 6 infrastructure. Meanwhile, a Nature paper put a serious crack in the integrity story underpinning US forest offsets, a reminder that the integrity layer is still load-bearing for everything being built on top. ...