This Week in CDR - Week 14, 2025

We are back with another edition of This Week in CDR, a weekly round-up of the top news, developments, and market updates from the world of durable carbon removal.

This week saw key developments in durable CDR, led by deals totaling over 112,000 tonnes, including Microsoft’s sixth enhanced weathering agreement and Frontier’s first with a waste-to-energy retrofit. Other highlights include Altitude’s first commitment to procure 25,000 biochar CDR credits, while there were new resources for marine carbon dioxide removal (mCDR) launched by Carbon Direct and Ocean Visions.

Read on to learn more in the newest edition of This Week in CDR!

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Deals and Partnerships

[Image source: Hafslund Celsio]

Deals

Frontier signed a $31.6 million offtake agreement to purchase 100,000 tonnes of CDR from Hafslund Celsio. The tonnes will be removed from Hafslund's facility in Oslo, which is also the first-ever retrofit of a waste-to-energy facility to deliver carbon removal.

Microsoft signed an offtake agreement with Terradot to purchase 12,000 tonnes of CDR. This is Microsoft’s 6th enhanced weathering deal with 4 companies to date, totaling ~52,000 tonnes.

CDR financier Altitude committed to procuring over 25,000 tonnes of CO₂ Removal Certificates (CORCs) from biochar-based CDR facilities in West Africa for its purchasing facility, Ascent. The credits will be issued via the Puro Registry.

Urban innovation hub MaRS Discovery District has led a CDR credit pre-purchase round from six Canadian suppliers, with Japan’s M-Lab consortium participating, to support early-stage companies and boost market traction for CDR in Canada.

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Projects

[Image source: Husk]

Biochar company Husk announced the launch of its operations in Vietnam. It previously partnered with Klarna and Carbonaires to develop a biochar plant in Cambodia with a capacity to remove 16,000 tonnes of CO₂ per year.

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Financing

[Image source: Kairos Carbon]

US-based CDR startup Kairos Carbon secured a £1 million grant funding from Defra’s Farming Innovation Programme, delivered in partnership with Innovate UK, that will support its work on recovering nutrients from agricultural feedstocks.

Pricing Perception Gap in Durable CDR Explore insights from the Durable CDR Pricing Survey, conducted in partnership with OPIS, to help market participants better understand pricing expectations for durable CDR credits.

Policy and Research

[Image source: Ocean Visions]

Ocean Visions launched the Marine CDR Ecosystem Database, a comprehensive platform mapping stakeholders, funding, and partnerships across the mCDR sector to support collaboration in the field.

Isometric launched “Open Sourcing CDR”, a new series in which it open sources its foundations and shares how it operationalizes science, its work with partner organizations, and lessons learnt from building its registry over the past four years.

The UK government’s Department for Energy Security and Net Zero published an independent review of CDR methods covering areas such as scale of deployment, co-products, regulatory framework gaps, and economic cost, amongst others.

Puro.earth launched the public consultation for its 2025 update to its Biochar Methodology,which features CORC200+ durability, ICVCM alignment, and refined guidance on biomass sourcing, production, and end-use applications, amongst others.

Reports

[Image source: Carbon Direct]

Carbon Direct, in collaboration with Microsoft, released the new criteria for high-quality marine CDR, providing science-based guidance for buyers and developers on integrity, durability, and monitoring to responsibly scale marine carbon removal.

Poll of the week

In our latest poll, we're eager to hear from you: Which method do you think will take the top spot in Q1 2025 by volume?

• BECCS
• Biochar carbon removal
• DACCS
• Other

Click here to participate in the poll and share your thoughts in the comments.

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Disclosure

CDR.fyi is a public benefit corporation operating globally. Some of the company’s contributors have affiliations with companies in the industry, including Milkywire, Charm Industrial, CDRJobs, and DVNE. Data and content published by CDR.fyi, including This Week in CDR, our Monthly Recaps, and our Quarterly Market Updates, are vetted and reviewed by individuals with no conflict of interest.