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Welcome to Carbon Insider - Carbon Unbound's weekly briefing on the deals, data, and developments shaping the global carbon removal market. Let's get into it. Have we missed anything? Get in touch here to send news for feature or publish.
Senken and Carbonsate sign Europe's largest biomass storage deal at 50,000 tonnes
The multi-year offtake covers permanent carbon removal between 2026 and 2028, sourced from Carbonsate's Namibia project where waste wood is stored in engineered underground chambers.
Mafix raises $5.4 million to scale carbon-negative silicon fertilizers
The industrial startup, which converts abundant rocks into agronomic mineral products, closed a pre-seed round led by Azolla Ventures with backing from Counteract VC, Astera Institute, and others.
BeZero publishes 14 ex ante ratings on projects from Microsoft's carbon portfolio
The rating agency's reports offer one of the most comprehensive independent pre-issuance analyses of a single buyer's removal portfolio to date.
India's Ground Up secures pre-purchase agreement with CDR accelerator remove
The biochar startup signed the deal after progressing to the second stage of remove's India programme, called Global Leap.
Carbon to Sea Initiative opens two calls for proposals on ocean alkalinity enhancement
The 2026 open call seeks research to advance understanding of OAE viability, with two separate RFPs outlined in the announcement.
Rotterdam awards Paebbl €805k grant co-financed by the EU
The funding bridges the gap between Paebbl's demo plant and its first commercial-scale facility, supporting R&D work at its Rotterdam centre.
CO2-Sync and Carbo-FORCE open CF-1000 biochar facility in Utah
The commercial pyrolysis plant in Price, Utah celebrated its launch this week with officials from state government, forestry, utilities, and the carbon markets industry in attendance.
German Environment Ministry outlines plans to strengthen natural carbon protection programme
The draft update to the Action Programme for Natural Climate Protection prioritises wetland rewetting and positions forests and wood products as expanded carbon sinks.
Rainbow issues its 500,000th carbon credit
The milestone comes three and a half years after its first issuance, with credits now certified across 73 projects spanning six pathways in Europe, Africa, and Asia.
All Aboard raises $133 million to fund climate tech's "missing middle"
The VC coalition is targeting early-stage climate startups that fall between seed funding and growth capital.
US Treasury and IRS extend Section 45Q safe harbour for carbon capture
Notice 2026-50 expands the existing safe harbour in response to regulatory uncertainty created by an EPA proposal to eliminate Subpart RR protocols, which currently underpin tax credit eligibility for geologically sequestered CO2.
Meme of the Week
Credit: Carbon Removal Memes
Welcome to Carbon Insider - Carbon Unbound's weekly briefing on the deals, data, and developments shaping the global carbon removal market. Let's get into it. Have we missed anything? Get in touch here to send news for feature or publish.
Senken and Carbonsate sign Europe's largest biomass storage deal at 50,000 tonnes
The multi-year offtake covers permanent carbon removal between 2026 and 2028, sourced from Carbonsate's Namibia project where waste wood is stored in engineered underground chambers.
Mafix raises $5.4 million to scale carbon-negative silicon fertilizers
The industrial startup, which converts abundant rocks into agronomic mineral products, closed a pre-seed round led by Azolla Ventures with backing from Counteract VC, Astera Institute, and others.
BeZero publishes 14 ex ante ratings on projects from Microsoft's carbon portfolio
The rating agency's reports offer one of the most comprehensive independent pre-issuance analyses of a single buyer's removal portfolio to date.
India's Ground Up secures pre-purchase agreement with CDR accelerator remove
The biochar startup signed the deal after progressing to the second stage of remove's India programme, called Global Leap.
Carbon to Sea Initiative opens two calls for proposals on ocean alkalinity enhancement
The 2026 open call seeks research to advance understanding of OAE viability, with two separate RFPs outlined in the announcement.
Rotterdam awards Paebbl €805k grant co-financed by the EU
The funding bridges the gap between Paebbl's demo plant and its first commercial-scale facility, supporting R&D work at its Rotterdam centre.
CO2-Sync and Carbo-FORCE open CF-1000 biochar facility in Utah
The commercial pyrolysis plant in Price, Utah celebrated its launch this week with officials from state government, forestry, utilities, and the carbon markets industry in attendance.
German Environment Ministry outlines plans to strengthen natural carbon protection programme
The draft update to the Action Programme for Natural Climate Protection prioritises wetland rewetting and positions forests and wood products as expanded carbon sinks.
Rainbow issues its 500,000th carbon credit
The milestone comes three and a half years after its first issuance, with credits now certified across 73 projects spanning six pathways in Europe, Africa, and Asia.
All Aboard raises $133 million to fund climate tech's "missing middle"
The VC coalition is targeting early-stage climate startups that fall between seed funding and growth capital.
US Treasury and IRS extend Section 45Q safe harbour for carbon capture
Notice 2026-50 expands the existing safe harbour in response to regulatory uncertainty created by an EPA proposal to eliminate Subpart RR protocols, which currently underpin tax credit eligibility for geologically sequestered CO2.
Meme of the Week
Credit: Carbon Removal Memes
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