A market-heavy day. Four stories with deal and product announcements, anchored by a quiet but significant EPA regulatory first. The CDR procurement ecosystem continues to professionalize — and the buyer base keeps widening.
What We Published Today
CUR8 and Isometric Launch a New “2030 Portfolio” CDR Offering
Carbon removal market intelligence provider CUR8 and verification platform Isometric have launched a joint “2030 Portfolio” — a curated CDR offering designed to give corporate buyers access to a diversified mix of high-quality, Isometric-certified removal credits with delivery by 2030. This is the CDR market’s version of a managed fund: curated, verified, and structured to reduce buyer risk. It signals that the intermediary layer between CDR suppliers and corporate buyers is maturing fast.
Mombak Earns First Isometric-Verified Enhanced Weathering Credits
Brazilian carbon removal company Mombak announced it has generated its first Isometric-verified enhanced weathering (EW) credits. Mombak also registered reforestation projects with Isometric’s registry. This is notable because Mombak has traditionally been associated with nature-based removals — the move into EW with third-party verification from Isometric shows pathway diversification backed by rigorous MRV. It also adds another verified EW data point to the market.
Climeworks Integrates High-Quality Biochar to Diversify Carbon Removal Portfolios
Climeworks, the Swiss DAC leader, announced it is integrating high-quality biochar into its carbon removal portfolio offerings. This is a strategic shift: Climeworks has been synonymous with direct air capture, but the move to include biochar acknowledges that corporate buyers increasingly want diversified CDR portfolios rather than single-pathway bets. It also validates biochar as a pathway that meets Climeworks’ quality bar — significant given yesterday’s deep dive on biochar quality standards.
Tapestry and Climeworks Establish Ten-Year Carbon Removal Partnership
Tapestry, Inc. — the parent company of Coach, Kate Spade, and Stuart Weitzman — has signed a ten-year carbon removal partnership with Climeworks, incorporating biochar alongside DAC. A decade-long commitment from a fashion holding company is unusual. It signals that CDR procurement is spreading beyond the tech-and-aviation early adopters into consumer brands. The inclusion of biochar in the deal structure reflects Climeworks’ new portfolio approach announced the same day.
CDR Company Directory Update — April 2026
Our monthly CDR company directory refresh is live, with updated profiles, new entrants, and pathway tracking across the field.
Stories We Didn’t Cover (But Should Be On Your Radar)
EPA authorizes first ocean CDR seafloor deposit (score 20, 2 sources) — Axios and Politico Pro reported that the EPA has for the first time authorized a carbon removal company to deposit biomass bricks on the seafloor under the Marine Protection, Research, and Sanctuaries Act. The agency did this even after scrubbing climate-related ocean content from its website. The regulatory precedent matters more than the framing: this is the first federal authorization for ocean-based carbon removal disposal in the US.
Sensirion partners with ClimeFi for durable CDR procurement (score 53) — Swiss sensor manufacturer Sensirion announced a partnership with ClimeFi to procure a portfolio of durable carbon removal solutions. Another non-obvious corporate buyer entering the CDR market — industrial tech companies are starting to show up alongside the usual suspects.
Georgia Tech: effective CDR requires transparency (score 20) — New research from Georgia Tech argues that carbon removal cannot scale effectively without better transparency and regulation. The paper calls for standardized reporting frameworks and third-party verification — themes that align with the Isometric and CUR8 market developments covered today.
“Defending Net-Zero: A New Role for CDR” policy paper (score 35) — A new policy paper published via Libmod argues for CDR as essential to defending net-zero targets against political backsliding. The framing — CDR as defense, not just ambition — is increasingly relevant as climate policy faces headwinds in multiple jurisdictions.
ERW for brownfield cleanup (score 8) — A preprint proposes repurposing enhanced rock weathering for brownfield remediation, using carbonate-silicate remineralization to stabilize heavy metals in contaminated soils while sequestering carbon. A dual-benefit application that could change the economics of ERW deployment.
Market Snapshot
Today’s theme: professionalization. The CUR8/Isometric “2030 Portfolio” is the CDR market building its version of managed investment products. Climeworks adding biochar is the market’s largest DAC company acknowledging that buyers want diversification. Tapestry’s 10-year deal shows the buyer base widening into consumer brands.
The Isometric thread is particularly strong today: CUR8’s portfolio is Isometric-certified, Mombak’s EW credits are Isometric-verified, and Climeworks’ biochar meets Isometric’s quality bar. One verification platform is emerging as the quality standard that connects suppliers, intermediaries, and buyers. That is market infrastructure forming in real time.
Meanwhile, the EPA seafloor authorization — quietly granted, climate unmentioned — creates the first US regulatory pathway for ocean CDR disposal. The politics are complicated, but the precedent is now set.
CaptainDrawdown covers carbon removal — the science, the markets, and the policy — every day. Browse all posts or explore the CDR company directory.