 | | | | Links to recent scientific papers, web posts, upcoming events, job opportunities, podcasts, and event recordings, etc. on Carbon Dioxide Removal TechnologyThis service costs us around $XXXX each month and relies entirely on your donations. Help ensure its future by subscribing to a paid plan.Donate < $10 Get 20% off a group subscription TABLE OF CONTENTSNote: Click on the headings listed in the table of contents above to easily navigate to the sections you’re interested in.THIS WEEK’S TOP CDR HIGHLIGHTSCall for Proposals: Natural Resources Canada has launched funding calls to advance CDR technologies including Direct Air Capture, Bioenergy with Carbon Capture and Storage and broader CCUS projects. The program supports engineering design work to scale durable carbon removal and storage solutions. New Platform: ClimeFi has launched a Due Diligence Coverage platform giving qualified buyers free access to executive summaries of vetted carbon removal project assessments. The tool rates projects on integrity, delivery risk and beyond-carbon factors to boost transparency and confidence in long-term CDR procurement. Report: Carbon Direct launched CDR 2.0, a comprehensive framework designed to accelerate the deployment of high-durability CDR projects from corporate commitments to operational delivery. The initiative introduces five interconnected pillars that address structural barriers preventing the CDR market from scaling at the speed required to meet corporate climate goals and global climate targets. CDR Researchers Directory: Cornell University postdoc is developing a global Carbon Dioxide Removal researcher directory. Graduate students and postdocs in CDR and carbon management are invited to submit their details. Low-Carbon Certification Framework: Absolute Climate has launched a new certification framework to verify and trade climate benefits from low-carbon products like green steel, low-carbon concrete and sustainable aviation fuel through Environmental Attribute Certificates (EACs). The system aims to expand access to credible decarbonization claims globally while helping producers secure financing and scale low-carbon materials. Campaign: Svante Technologies Inc. and Speed Skating Canada launched the “Save the Ice” climate campaign to raise awareness about warming’s impact on winter sports, purchasing DAC carbon credits from DeepSky to remove 0.5 kg CO₂ for every video share. Paper: A new Nature Communications Sustainability study projected how enhanced rock weathering could be widely adopted globally by 2100. Depending on policy and social response scenarios, ERW might remove 0.35-0.76 GtCO₂/yr by 2050 and 0.7-1.1 GtCO₂/yr by 2100, with low- and middle-income countries playing a growing role. Read on to unpack more updates: COMMERCIAL NEWS Share RESEARCH PAPERSAuthors: Charles Watson and Mai BuiSynopsis: This study evaluates economic equivalency ratios for CDR, comparing climate repair value, social offset value, and discounted tonne-year accounting. Ratios are highly sensitive to assumptions like discount rates and time horizons, often misaligning with long-term temperature goals. Physical equivalence approaches—Carbon Cycle Matching and Atmospheric Longevity Matching—better reflect climate dynamics, though true equivalence remains complex. The work highlights the need for refined frameworks to guide CDR deployment effectively.
Authors: Yue He, Keywan Riahi, Matthew J. Gidden, Shilong Piao, Tao Wang, Thomas GasserSynopsis: This study argues that temporary CDR cannot fully offset CO₂ emissions like permanent CDR, challenging common equivalency assumptions in climate policy. Instead, it shows temporary CDR is well-suited to compensate non-CO₂ forcers such as methane. Compensation ratios depend on storage duration, with stable metrics for short-lived species. The framework supports differentiated reporting and offers practical value for sectors like agriculture.
Authors: Alexandra Ringsby, Marc Roston, Gian Mallarino, Mislav Radic, Kate MaherSynopsis: This study identifies an “attribution gap” in current CDR accounting, where upstream emissions are excluded and removals credited without full atmospheric reconciliation—potentially reaching gigaton scale in biomass-based systems. It proposes an Objective Atmospheric Basis (OAB), a mass-balance ledger framework treating emissions as liabilities and removals as assets. Applied to biochar, OAB aligns accounting with physical carbon flows to ensure high-integrity, scalable CDR.
Authors: Uzoma E.K., Otunla T. A., Nymphas E. F., Ogunsola O. E., Adeniyi M. O.Synopsis: This study projects wildfire occurrence in West Africa under atmospheric carbon dioxide removal using CNRM ESM1 C1 model outputs from CDRMIP. Across 2040–2129, fire indices indicate a predominance of low-risk or no-fire categories, particularly in Côte d’Ivoire, Ghana, Burkina Faso, Togo, Benin, and Nigeria. No high or extreme fire risks are projected, suggesting that CDR may provide co-benefits for ecosystems, agriculture, and community resilience by reducing wildfire vulnerability.
Authors: Larba Hubert Balima, Moussa Ganamé, Philippe Bayen, et al.Synopsis: This study analyzes aboveground carbon (AGC) storage in three peri-urban forests in Burkina Faso, using 4840 trees across 158 plots. AGC varies by site and diameter class, with 20 species contributing 72–92% of total carbon. Structural equation modeling shows tree size variation and density positively drive AGC, while species diversity and elevation reduce it. Results suggest that planting high-density, large trees can maximize carbon storage, enhancing peri-urban forests’ climate mitigation potential.
Authors: Junxian Cai, Bo Song, Anjun Qin and Ben Zhong TangSynopsis: This review surveys advances in polymer-based materials for DAC, addressing the challenge of combining high efficiency, durability, and cost-effectiveness. It covers functional polymers, polymer composites, MOFs, and COFs, emphasizing synthesis strategies and structure–property relationships. The article provides guidance for designing next-generation DAC materials and highlights emerging opportunities for improved carbon capture performance.
Authors: Kaiwen Huang, Jiajun Ou, Wenyi Zhou, Rui Tan, Xin Liu, Ke Huang, Jinling Wang, Jie LinSynopsis: This study investigates how water-soluble salt ions regulate soil carbon dynamics in coastal saline-alkali lands under different plantations. Afforestation reduced salinity and reshaped ion composition, especially lowering Na⁺ and Mg²⁺ in surface soils. Na⁺ emerged as the main driver of carbon variation, negatively linked to organic carbon. Certain plantations significantly increased soil carbon, offering guidance for optimizing afforestation to enhance sequestration.
Authors: Abdelrahman Refaie, Mohsen Afshari, Vanessa Tapia, Erika La Plante, David Jassby, Gaurav Sant & Mim RahimiSynopsis: This study identifies U.S. coastal sites suitable for large-scale electrochemical ocean carbon dioxide removal. Thirty-eight facilities with seawater intake are grouped into five regional hubs and evaluated using a multi-criteria framework covering removal potential, cost, energy mix, emissions, community vulnerability, and infrastructure. The South, West, and Northeast hubs rank highest, offering a practical roadmap for deployment, policy, and technology prioritization.
Authors: Dianti Farhana Kamasela, Shinichiro Fujimori, Tomoko Hasegawa and Saritha Sudharmma VishwanathanSynopsis: This study assesses global soil organic carbon (SOC) sequestration under three land-use pathways (BAU, FOOD, 2°C). Climate-driven bioenergy expansion under the 2°C scenario boosts SOC stocks by ~7% (~9 Gt CO₂), while dietary shifts alone yield limited gains. Bioenergy growth drives the largest increases, especially in Latin America and OECD/EU regions. Much of the potential is achievable below $100 per ton CO₂, highlighting trade-offs between food policy, land use, and carbon storage.
Authors: Kafayat Ololade Liadi, Ifeanyi Simon Opara, Ruth Adesola Elumilade, Habeeb Shittu, Ibukun OlaoluwaSynopsis: This comprehensive review examines DAC technologies, covering their history, principles, and methods—including chemical absorption, adsorption, biological approaches, and enhanced weathering. It evaluates efficiency, scalability, technical challenges, policy contexts, and real-world case studies. The paper highlights emerging innovations, integration with carbon utilization, and the need for coordinated action to accelerate DAC deployment for climate mitigation.
Authors: George Bishop, Colm Duffy, Goran Berndes, Miguel Brandao, Annette Cowie, et al.Synopsis: This study uses dynamic life cycle assessment to evaluate sawmill residue-derived BECCS and cascading wood strategies. BECCS provides long-term cooling if forest carbon stocks are maintained, while cascading wood use enhances near-term cooling and temporary carbon storage. Unharvested forests can initially outperform direct bioenergy, but sink strength declines with maturity and disturbance risk. Integrating cascading wood with BECCS extends the durability and resilience of carbon dioxide removal.
Authors: Arash Momeni, Hossein Anisi, Rebecca V. McQuillan, Masood S. Alivand, et al.Synopsis: This study enhances the energy efficiency of liquid-based Direct Air Capture by integrating catalytic solvent regeneration, hybrid solvents, and low-temperature membrane vacuum regeneration. Silica-supported iron-sulfated zirconia catalysts and a hybrid solvent (3 M potassium taurinate + 1 M potassium sarcosinate) significantly improve CO₂ desorption. Combined, these innovations cut thermal energy use by 66.8%, lowering the requirement to 2.6 GJ per ton CO₂.
Authors: Azam Jafari, Fereydoon Sarmadian, Ahmad Heidari & Zahra RasaeiSynopsis: This study evaluates the impact of spatial autocorrelation on soil organic carbon (SOC) prediction using four Random Forest models at 0–30 cm depth in Abyek, Iran. Incorporating spatial predictors and appropriate validation (Scenario 4) achieved the highest accuracy (R² = 0.86) and removed residual autocorrelation, while non-spatial models showed bias. Findings highlight the importance of spatial integration for accurate SOC mapping, carbon stock assessment, and sustainable land management.
Authors: Karsoon Tan, Zexin Li, Xueyu YanSynopsis: This study provides a global assessment of oceanic carbon removal from bivalve aquaculture. Using an updated carbon budget model, it finds scallops and oysters have the highest removal potential, with oysters most widely farmed. From 2010–2022, production rose 53%, increasing net carbon removal 42% to 1.29 Mt. Current removal equals afforesting 0.32 million hectares annually, with further growth expected. Research gaps and priorities are identified.
Authors: Hannes Böttcher, Anna Repo, Mikko Peltoniemi, Olli-Pekka Tikkasalo, Aleksi LehtonenSynopsis: This study examines greenhouse gas inventory submissions from 22 EU Member States, Norway, Switzerland, and the UK to assess forest-based carbon dioxide removals. It finds declining mitigation effectiveness due to rising forest biomass losses and less efficient carbon transfer to harvested wood products. Current reporting approaches may weaken incentives to maximize forest CDR, highlighting the need for improved accounting to support fair and effective EU climate action.
Authors: Dominik Heß, Michael Rubin, Roland DittmeyerSynopsis: This study presents a modular Direct Air Capture (DAC) system integrated into building HVAC units to lower costs and energy use. Modeling and optimization show 40% less thermal demand than separate systems, with humidity strongly affecting performance. Using solar or waste heat, levelized costs could fall to €280 per ton CO₂, with added savings in dense buildings, highlighting HVAC-DAC as a scalable complement to large DAC farms.
Authors: Felix Meier, Martin Quaas, Wilfried Rickels, Christian TraegerSynopsis: This study integrates carbon dioxide removal (CDR) into an analytic integrated assessment model to determine optimal deployment under non-permanence, energy limits, and fossil fuel scarcity. Examining DAC, ocean alkalinity enhancement, and ocean iron fertilization, it finds CDR has limited effect on optimal carbon prices. Deployment mainly depends on energy requirements, fossil scarcity, and renewable growth, with peak use before or around 2100 in high-damage, overshoot scenarios.
Authors: Georgy Lazorenko, Alexander Kruglikov, Anton KasprzhitskiiSynopsis: This perspective examines enhanced mineral weathering (EMW) in the mining sector as a scalable carbon dioxide removal strategy. Drawing on field trials, it evaluates controls on weathering rates—such as mineralogy, grain size, and hydrology—and identifies near-term deployment opportunities using mine tailings. It proposes a low-energy implementation framework and research roadmap focused on integration, life-cycle assessment, cost optimization, and durable, verifiable CDR outcomes.
Authors: Christpher Yip, Kira Stonkevitch, Abigail Knecht, Philip D. Weyman, Tania Timmermann, Gonzalo A. Fuenzalida-MerizSynopsis: This study shows that Bacillus subtilis strains MP1 and MP2 enhance basalt weathering, increasing soluble calcium release compared to abiotic controls. Released metals also trigger bacterial sporulation, suggesting sporulation as a proxy for monitoring silicate dissolution. Microscopy confirms mineral alteration and spore formation on rock surfaces. These findings link microbial activity to accelerated CO₂ drawdown, informing Enhanced Weathering and Microbial Carbon Dioxide Mineralization strategies for CDR.
WEB POSTSShare Carbon Removal Updates REPORTSUPCOMING EVENTSFebruary 2026DeCarbon | 24-26 February 2026 | CopenhagenMarch 2026April 2026We have curated a “Carbon Removal Events Calendar.” Explore and stay informed about upcoming events, conferences, and webinars on Carbon Dioxide Removal technology. Sync specific events / all events to your default calendar to ensure you never miss out on important CDR updates. Carbon Removal Events Calendar Add our Carbon Removal Events Calendar to your default calendar in 2 ways:Sync specific event: Click the event → menu (≡) → Share → choose your calendar → Save.Or sync all events: Menu (≡) → Preferences → iCalendar Feeds → Copy URL → Add to your calendar settings → Subscribe.JOB OPPORTUNITIES“Planteers build carbon removal systems that work in the real world — integrated into industrial and municipal infrastructure.”
“Octavia Carbon builds and deploys Direct Air Carbon Capture (DACC) machines in Kenya, the world’s best place to do so.”
“Equilibrium is a full-stack carbon removal developer building one of the largest high-integrity carbon portfolios from the Global South, with a ~20Mt CO₂ removal pipeline. We develop bankable, high-impact projects by integrating advanced climate science, an in-house digital MRV platform, and innovative blended finance.”
“At Klimate, we enable companies pursuing real climate action to take responsibility for the emissions they can’t avoid. The world talks a lot about net-zero, but most companies struggle to know what to do once reductions are no longer enough. That’s where we come in. We are a science-led business with real experts guiding companies through the world of carbon removal and how they can safely invest in taking CO₂ out of the atmosphere.”
“Living Carbon is a public benefit company with a mission to fight climate change by transforming marginal land into high-value environmental assets. Our team specializes in restoring abandoned mineland and degraded agricultural land into diverse, thriving forests.”
“CarbonCure Technologies is a fast-growing carbon utilization technology company on a mission to reduce embodied carbon in new concrete construction.”
“Carboculture is building a rapidly scalable biochar carbon removal solution.”
“GE Vernova is a purpose-built energy technology company on a mission to electrify to thrive and decarbonize the world.”
“Removall supports companies and organizations in their climate ambitions by developing and structuring pooled or customized carbon funds, or by implementing rigorous and ambitious carbon offsetting programs.”
“Carbon Gap is helping Europe become a world leader in deploying carbon removal.”
“UNDO is tackling the greatest challenge of our time: climate change. We are a fast-growing for-profit business that is already one of the biggest carbon removal companies in the world.”
here.”
Looking for your dream job in CDR? There are 640 jobs available *right now*: check them all out at: CDRjobs Board
PODCASTS“In this episode of Plan Sea, hosts Anna Madlener and Wil Burns sit down with Professor Dr. Alexander Proelss, Chair in the International Law of the Sea and International Environmental Law, Public International Law, and Public Law at the University of Hamburg, to discuss the current state and recent developments of international legal frameworks regulating ocean-based carbon dioxide removal (oCDR). Alexander discusses the need for international law to ensure responsible regulation of oCDR, and offers insight into the relevant international agreements for oCDR research.”
The Pioneer Pushing CDR in California - with Senator Josh Becker | The CDR Policy Scoop | The Pioneer Pushing CDR in California - with Senator Josh Becker The CDR Policy Scoop 26:56 |
, “In this episode of The CDR Policy Scoop, Sebastian Manhart and Eve Tamme are joined by Josh Becker, California State Senator representing Silicon Valley, to discuss the future of carbon dioxide removal (CDR) policy in California.Recorded live on Presidents’ Day, the conversation explores how California quantified its carbon removal needs - 7 million tons by 2030 and 75 million tons by 2045 - and what it will actually take to deliver on those targets.The episode dives into the legislative history of SB 308 (Carbon Dioxide Removal Market Development Act) and subsequent efforts to establish quality standards for removals, including durability and additionality requirements. Senator Becker explains the political challenges of designing compliance mechanisms, aligning with California’s Cap-and-Invest system, and navigating tensions between the legislature, regulatory agencies, and the Governor’s office.Sebastian and Eve also explore the implications of recent bills - including funding through California’s climate innovation programs and new mandates for developing CDR protocols - and what they mean for integrating removals into compliance markets. The discussion touches on voluntary market demand, infrastructure enablers such as CO₂ pipelines, and how California can attract private investment amid federal headwinds.The episode concludes with a forward-looking discussion on what policymakers globally can learn from California’s experience: focus on quality standards, clarify who pays, and build durable political coalitions to scale carbon removal alongside deep emissions reductions.”
Rethinking Corporate Net Zero - with Robert Höglund | The CDR Policy Scoop | Rethinking Corporate Net Zero - with Robert Höglund The CDR Policy Scoop 26:58 |
“In this episode of The CDR Policy Scoop, Sebastian Manhart and Eve Tamme are joined by Robert Höglund, Manager of the Milkywire Climate Transformation Fund and co-founder of CDR.fyi, to unpack a new way of thinking about corporate net-zero targets.Recorded in early February, the conversation explores Robert’s proposal for conditional net-zero targets - a framework that distinguishes between emissions companies can realistically control and those that depend on broader systemic change. The discussion examines why today’s net-zero paradigm often obscures these realities, particularly for hard-to-abate sectors, and how this lack of clarity risks undermining credibility and action.The episode dives into the practical challenges of operationalising conditional targets, including questions of agency, financial feasibility, governance, and accountability. Sebastian and Eve probe whether this approach simplifies or complicates an already crowded standards landscape, and whether it risks creating loopholes - or instead forces companies to be more honest about what reaching net zero actually requires.The discussion also explores how this reframing could affect near-term demand for carbon removal, particularly through operational net-zero claims for Scope 1, Scope 2, and business travel, and whether conditional targets could unlock more realistic and durable corporate engagement with removals over the next decade.”
Carbon Efficiency vs. Everything Else—Are We Solving for the Polycrisis or Climate Change? | Reversing Climate Change | 387: Carbon Efficiency vs. Everything Else—Are We Solving for the Polycrisis or Climate Change? Reversing Climate Change 28:02 |
“Are we trying to get parts per million of greenhouse gases down as quickly as possible? Or are also trying to solve the nested problems of fertility, toxicity, and resilience as well as the systems that got us here in the first place?In this episode, I contrast high carbon-efficiency biomass burial approaches (Biomass Carbon Removal and Storage/BiCRS) with biochar and other methods that sacrifice some carbon efficiency but generate wide-ranging cobenefits.We explore commodification, fungibility, and the dream of a “ton is a ton” carbon market—alongside the discomfort some feel when complex ecological realities get flattened into a single tradeable metric. Is that clarity necessary for scale, or does it repeat the same abstractions that helped create the crisis?Ultimately, this isn’t a fight between good and bad actors. It’s a productive friction between two worldviews: the PPM-obsessed technocrats and the polycrisis systems thinkers each have their own blindspots and their own superpowers. My hope is not to settle the debate, but to help you notice where your intuitions land—and why.“ we cannot solve our problems with the same thinking we use when we created them.”“
YOUTUBE VIDEOSScientists test new technology to boost ocean carbon absorption | KBC Channel 1 TV Shows “A major climate research project has been launched along the Indian Ocean aimed at boosting the ocean’s natural ability to absorb carbon dioxide. The project tests ocean alkalinity enhancement, a technology that involves adding natural alkaline minerals to accelerate carbon absorption, and examining how marine organisms, especially plankton, respond to adjusted alkalinity levels.”
Why the EU’s rulebook for certifying permanent carbon removals will fail | Carbon Market Watch “As the European Commission weighs whether and how to incorporate permanent carbon removals into the EU’s carbon market, it has recently adopted key rules to define, quantify and assess trade offs associated with those removals.Enabling the use of carbon removals credits in the EU’s Emissions Trading System would be a bad idea, but to make matters worse, these quantification rules are not fit for purpose. EU policymakers have the opportunity to send these rules back to the drawing board before they enter into force, or the EU ETS might become bloated with hot air.Leading climate and nature NGOs invite you to watch this webinar that explains the Carbon Removal and Carbon Farming framework, and why and how policymakers need to reject the currently proposed rules for the quantification of permanent removals.”
Enhanced Rock Weathering for Improved Smallholder Farmer Welfare | The University of Texas Jackson School of Geosciences “Jake Jordan, chief science officer at Mati Carbon and Jackson School alumnus (Ph.D. 2017) gave a DeFord Lecture titled “Enhanced Rock Weathering for Improved Smallholder Farmer Welfare: An At-Scale Case Study for Rice Agriculture in India” on Feb. 12, 2026”
USBC & Offstream: From Concept to Confidence Biochar Fireside Chat | SMART Policy Group “Across North America, prospective biochar producers and biomass project developers are closer than they think to operating profitable biochar operations. But many lack clarity on the policy pathways, funding opportunities, and realities of the carbon credit market - which are often critical to success.This fireside chat brings together Maureen Walsh of the U.S. Biochar Coalition and Varsha Ramesh Walsh of Offstream to discuss how producers can translate waste biomass into durable, revenue-generating biochar/biocarbon + carbon credit projects. They will dive into the potential of policy programs, government partnerships, and market frameworks that can accelerate project development.Designed for North American operators, this session focuses on practical field lessons, market readiness, and policy alignment - not theory. We’ll explore how credible reporting, certification pathways, and public-sector support programs increase buyer confidence and unlock commercial scale.”
Microbial CO₂ Fixation (MCO₂): Turning Soils into Powerful Carbon Sinks (C-SINK Seminar) | Climate Strategies “This online research seminar, which took place on 5 February 2026, explored the science, mechanisms, and real-world applications of MCO₂.”
Weekly Carbon Removal Updates from 16 February - 22 February 2026 | Carbon Removal Updates BulletinDEADLINESFollow us on:Twitter | Bluesky | LinkedIn | YouTube | Substack | Podcast 1 | Podcast 2
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