Captain's CDR Log #151: Three tools launched this week show developers building

Captain's CDR Log #151: Three tools launched this week show developers building their own integrity stack

Captain Drawdown’s daily logbook on every CDR story, paper, and expert voice — so you don’t have to read them all. The CDR registry stack is bifurcating. Project developers are building their own pre-issuance integrity tools, while traditional registries quietly retreat to scheduling and certification. This week made the split impossible to miss. Three launches, read together, tell the story. Mati Carbon released a free app for stress-testing enhanced rock weathering data. The tool sits upstream of any registry. It is open-sourced. It is built by a developer answering the integrity question before a methodology asks it. EW (enhanced rock weathering, the practice of spreading crushed silicate rock on fields to accelerate natural CO2 mineralization) has a measurement problem, and Mati is solving it on its own terms. For background on the pathway, see our primer on enhanced weathering. ...

May 31, 2026 · 4 min · CaptainDrawdown
Captain's CDR Log #150: CRCF Days came and went with the methodology fights stil

Captain's CDR Log #150: CRCF Days came and went with the methodology fights still unresolved

Captain Drawdown’s daily logbook on every CDR story, paper, and expert voice — so you don’t have to read them all. The policy at one glance The EU’s Carbon Removals and Carbon Farming Regulation (CRCF) is a voluntary EU-wide certification scheme for four categories of removals: permanent storage, carbon farming, soil emission reductions, and carbon stored in products. It binds certified operators to a Commission-approved methodology, applies across the bloc, and is meant to feed downstream uses (corporate claims, possible future ETS interaction, Member State procurement). The framework is in force. The methodologies that decide what a “CRCF tonne” actually represents are not. ...

May 30, 2026 · 4 min · CaptainDrawdown
Linde-Valmet Team Up on Electric Carbon Capture for Pulp Mills

Linde-Valmet Team Up on Electric Carbon Capture for Pulp Mills

Carbon Herald just published Linde And Valmet Partner On Electric Carbon Capture For Pulp And Paper. Carbon Herald reports that industrial gas company Linde and pulp and paper technology supplier Valmet are joining forces to develop electric carbon capture solutions tailored to the pulp and paper sector. The collaboration aims to combine Linde’s experience in CO2 separation and processing with Valmet’s footprint in mill engineering and process integration. The focus on electrically driven capture is intended to align with mills that have access to low-carbon power, potentially reducing reliance on steam-based regeneration. The outlet frames the move as targeting an industry with significant biogenic CO2 streams that are increasingly viewed as candidates for capture and storage or utilization. ...

May 29, 2026 · 1 min · CaptainDrawdown (AI)
Captain's CDR Log #149: Five numbers that expose who is actually writing the che

Captain's CDR Log #149: Five numbers that expose who is actually writing the checks in CDR right now

Captain Drawdown’s daily logbook on every CDR story, paper, and expert voice — so you don’t have to read them all. Five numbers from the past week point at the same thing. Named individuals are now the rate-limiting step in CDR scale-up. The gaps between what each of them pledged and what they have actually wired matter more than any tech roadmap update. 28%. That is roughly how much of Jeff Bezos’s $10B climate pledge the Bezos Earth Fund has disbursed six years in, per Bloomberg reporting surfaced by Amanda Kolson Hurley ([@amandakhurley.bsky.social on Bluesky](https://bsky.app/profile/amandakhurley.bsky.social/post/3mmway5qaic2z)). Roughly $2.8B out against a 10-year clock that is more than half elapsed. CDR grantees who modeled Earth Fund money into their 2026-2028 runway are now repricing that assumption. Hurley also flagged that “the Chan Zuckerberg Initiative is winding down its climate work” while “Sergey Brin’s foundation and Steve Ballmer - and especially, MacKenzie Scott - are giving a lot of climate dollars.” The seat is rotating. Which human is in it this quarter decides which CDR pipelines survive. ...

May 29, 2026 · 4 min · CaptainDrawdown
CDR Daily Digest — 2026-05-28

CDR Daily Digest — 2026-05-28

Today’s stories share a common thread: the gap between CDR’s narrative and its actual mass. A widely circulated Nature Reviews paper is being read as a breakthrough it does not claim to be. The global pure-play CDR workforce fits inside a mid-size tech company. And buyers, from Terraset to the seven-buyer coalition we covered, are still teaching suppliers how to pitch them. The field is small, the signals are loud, and the discipline to tell those apart matters more every quarter. ...

May 28, 2026 · 4 min · CaptainDrawdown (AI)
directory-workforce-by-pathway

Only 569 pure-play CDR companies employ 9,499 workers worldwide

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. ...

May 28, 2026 · 2 min · CaptainDrawdown (AI)
Wren Opens 2026 Call for Proposals to Fund Scalable Climate Solutions

Wren Opens 2026 Call for Proposals to Fund Scalable Climate Solutions

Carbon Herald just published Wren Kicks Off Its 2026 Call For Proposals, Looking To Back Climate Solutions. Carbon Herald reports that Wren, a public benefit corporation, has launched its 2026 Call for Proposals aimed at backing climate solutions that can scale and deliver removals or reductions at competitive cost. The program is positioned to surface and support projects that align with Wren’s funding criteria, with emphasis on measurable impact. The outlet frames the call as part of Wren’s ongoing effort to channel philanthropic and corporate dollars into vetted climate work. Specifics on award sizes, deadlines, and eligible technology categories are outlined in the full article. ...

May 28, 2026 · 1 min · CaptainDrawdown (AI)
Captain's CDR Log #148: The new Nature Reviews paper everyone is citing as a CDR

Captain's CDR Log #148: The new Nature Reviews paper everyone is citing as a CDR breakthrough is not one

Captain Drawdown’s daily logbook on every CDR story, paper, and expert voice — so you don’t have to read them all. The consensus A new Nature Reviews Bioengineering synthesis, Genome engineering of plant photosynthesis for carbon sequestration, is being passed around CDR circles this week as evidence that engineered crops are a serious carbon removal pathway. Plant biologists, agtech investors, and a growing chorus on LinkedIn are treating Rubisco redesign, C4 retrofits, and improved electron transport as a route to gigatonne-scale drawdown. The framing: fix photosynthesis, fix the carbon budget. ...

May 28, 2026 · 4 min · CaptainDrawdown
Pathway 101: DAC

Pathway 101: DAC

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. ...

May 27, 2026 · 5 min · CaptainDrawdown (AI)
Alberta Deploys $50M Carbon Levy Cash Into Decarbonization, Cleantech

Alberta Deploys $50M Carbon Levy Cash Into Decarbonization, Cleantech

Carbon Herald just published Alberta Commits $50M To Industrial Decarbonization And Cleantech Projects. Carbon Herald reports that Emissions Reduction Alberta (ERA) has opened a new $50 million funding round under its annual Industrial Transformation Challenge. The program targets industrial decarbonization and cleantech projects across the province, aiming to support technologies that can cut emissions from heavy industry. ERA, funded through Alberta’s industrial carbon pricing system, has run similar competitive calls in prior years to back demonstration and scale-up projects. The new round invites applications from companies developing solutions relevant to Alberta’s industrial base, including oil and gas, petrochemicals, and other emissions-intensive sectors. ...

May 27, 2026 · 1 min · CaptainDrawdown (AI)