 | | | | 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 HIGHLIGHTSReSCUE Oceans Act Introduced: U.S. Sens. Brian Schatz and Lisa Murkowski, with Reps. Suzanne Bonamici and Buddy Carter, introduced the Removing and Sequestering Carbon Unleashed in the Environment and Oceans Act (ReSCUE Oceans Act) to launch a National Oceanic and Atmospheric Administration-led marine CDR program with $2.5B over 10 years. The bill establishes mCDR research areas, a code of conduct requiring transparency and public engagement, and directs National Institute of Standards and Technology to standardize MRV protocols. CDR Accelerator Cohort: Remove Accelerator has selected eight innovative CDR startups for their cross-continental Global Leap cohort, focusing on biomass, biochar, and direct air capture solutions from Europe and India. These companies, chosen for a 5-month program, include Climitra, Alcom, Ground Up, RenewCred, Carbonway, Exothermite, KORALL, and Reaforma. OAE Field Projects Database: Carbon to Sea launched a new, interactive database focused on monitoring, reporting, and verification. The Interactive MRV Database offers a structured and interactive look at the current practice of monitoring in five of the world’s first OAE field projects. Report: Gabriella Kitch and the Carbon Removal Standards Initiative released a practitioner-informed roadmap showing how coastal resilience projects, such as flood protection, wetlands restoration, and other nature-based solutions can be designed to advance both climate adaptation and mCDR. Söderenergi Pauses BECCS Project: Swedish district heating operator Söderenergi has paused its bioenergy with carbon capture and storage (BECCS) project at the Igelsta biomass-fired combined heat and power (CHP) plant in Södertälje, citing weak demand for high-quality removals, lack of bankable financing and insufficient policy support. New Initiative: The Carbon Business Council and Emerald Climate launched APACdr, a regional initiative designed to accelerate carbon dioxide removal across the Asia-Pacific region. Buyer’s Guide: CDR.fyi launched a Buyer’s Guide to durable carbon dioxide removal, offering practical information to help buyers navigate, evaluate and purchase high-integrity CDR credits and engage confidently in the evolving carbon removal market. Symbiosis Expands Criteria: The Symbiosis Coalition updated its Quality Criteria to cover mangrove restoration alongside reforestation and agroforestry, adding ecosystem-specific guidance while keeping core principles like robust baselines, credible additionality, durable storage and social safeguards, laying groundwork for the launch of mangrove RFP in 2026. Read on to unpack more updates: COMMERCIAL NEWS Share RESEARCH PAPERSAuthors: Jennifer Kroeger, Bingquan Zhang, Noah Planavsky, Yuan YaoSynopsis: This study evaluates enhanced rock weathering for carbon dioxide removal in U.S. croplands, incorporating co-benefits like reduced fertilizer use and lower N₂O emissions. Using coupled life cycle and techno-economic analysis, results show ERW GHG emissions range 44–371 kg CO₂eq/t CO₂eq, and costs $123–$926 per t CO₂eq removed. Co-benefits can cut emissions by 10–56%, costs by 3–8%, and other impacts up to 147%, with regional variability. The framework advances CDR assessment and informs ERW deployment.
Authors: Alexander J. MacIsaac, Kirsten Zickfeld, Pierre Etienne Banville & H. Damon MatthewsSynopsis: This study compares a reference emissions pathway with “Reforestation Net-Zero” pathways where extra fossil fuel CO₂ is offset by reforestation. Using an Earth System model, it finds that offsetting emissions with reforestation leads to higher atmospheric CO₂ and greater warming than simply avoiding fossil fuels. Carbon cycle feedbacks and biogeophysical effects amplify warming, underscoring limits of tree-based offsets and the need for improved accounting.
Authors: Fabrice Pernet, Philip W. Boyd, Sam Dupont, et al.Synopsis: This critique challenges claims that oyster farming is a scalable marine carbon dioxide removal (mCDR) solution. It argues the original mesocosm study had limited seasonal scope, unrealistic stocking densities, incomplete carbon budgeting, and no life cycle analysis. Short-term sediment carbon storage was overstated despite likely remineralization. Field data do not confirm enhanced photosynthesis, and scalability claims lack supporting evidence.
Authors: Marc RostonSynopsis: This article argues carbon removal markets fail due to institutional design, not technology. Current certificate systems create no enforceable carbon asset, offering neither custody nor long-term accountability. Even properly structured claims face challenges of time-bound performance and transferability. The author proposes carbon storage leasing - treating removals as governed, auditable services - and Carbon Delivery Companies (CDCs) to manage custody and clearing, enabling durable, tradable carbon claims.
Authors: Wen Zhuang, Feng Li, Tianqiang Zhu, Liwen Zheng, Minghao Zhu, Jihua LiuSynopsis: This study examines how olivine-based ocean alkalinity enhancement (OAE) interacts with birnessite, a manganese oxide common in marine sediments. Laboratory experiments show birnessite accelerates olivine dissolution but reduces alkalinity, lowering carbon removal efficiency. It scavenges Ni and Co, yet increases toxic Cr(VI) mobility unless Fe(II) reduces it. Findings highlight trade-offs and environmental risks, informing safer OAE deployment modeling.
Authors: Marcus Schiedung, Kirsty J. Harrington, Xavier Dupla, et al.Synopsis: This Perspective examines ERW on agricultural soils as a carbon dioxide removal strategy, highlighting uncertainties in feedstock availability, plant–soil impacts, CDR efficiency along the land–ocean continuum, and socio-economic factors. Large-scale ERW faces constraints from rock composition, mining needs, soil effects, and verification challenges. The authors call for site-specific assessments, long-term monitoring, and integrated system modeling to ensure effective, equitable, and sustainable ERW deployment.
Authors: Jiaheng Shen, Yi Ge Zhang, Dong-Xun Yuan & Yi-Gang XuSynopsis: This study reconstructs atmospheric CO₂ during the ~260 Ma Emeishan Large Igneous Province using carbon isotopes from chlorophyll-derived compounds. Contrary to expectations, CO₂ fell from ~700 to ~350 ppm during early flood basalt phases, likely due to uplift-driven weathering of carbonate rocks exceeding volcanic degassing. CO₂ rose later during silicic eruptions. Results show LIP impacts can be complex, beginning before peak volcanism and not always driving warming or extinction.
Authors: Xinyu Chen, Xuan Wang, Xiaoping Jia, Siqi Wang, Raymond R. Tan, Bohong Wang, Fang WangSynopsis: This study uses an environmentally extended input-output (EEIO) model to assess large-scale basalt enhanced weathering (EW) in China. It finds an “amplified-offset” effect: energy-intensive grinding sharply increases electricity emissions, offsetting much of the carbon removal benefit. Regional transport mismatches further raise costs. Viability depends on grid decarbonization, cleaner transport, and optimized particle size; otherwise, supply-chain emissions may exceed CO₂ sequestration gains.
Authors: Gang He, Mingzhu Lu, Yuyi Yang, Quanfa Zhang, Wenzhi Liu & Matthias C. RilligSynopsis: This study examines how microplastics influence soil organic carbon (SOC) sequestration. Microplastics alter SOC content and quality by leaching dissolved organic matter, affecting mineralization, and creating hotspots for mineral–organic interactions. These processes can modify microbial carbon pumps and aggregate carbon storage. Understanding these effects is crucial for linking microplastic pollution with soil carbon dynamics and informing strategies for carbon neutrality.
Authors: Anthony J. Varni, Wade A. Braunecker, Marcos F. Calegari Andrade et al.Synopsis: This review examines amine-based sorbents for DAC of CO₂, focusing on degradation mechanisms that limit lifetime and increase costs. It explores how polymer chemistry, sorbent design, and environmental conditions affect performance, and highlights insights from spectroscopy, modeling, and accelerated testing. The study identifies key knowledge gaps and outlines research directions and mitigation strategies to enhance sorbent durability and improve the scalability of DAC technologies.
Authors: Anass Wahby, Nouha El Mail, Youssef Aoulad El Hadj Ali, et al.Synopsis: This review highlights biochar-based engineered materials as promising sorbents for CO₂ capture. It examines how synthesis methods influence structure, adsorption capacity, selectivity, and reusability. Woody biomass-derived biochar modified with vanadium oxide shows high performance (9.8 mmol/g) and durability over multiple cycles. Challenges to large-scale deployment are discussed, with proposed strategies to enhance sustainability and efficiency, guiding future research on scalable CO₂ capture technologies.
Authors: Min Jin Karen Wong, Sunlee Han, Sea-Eun Park, Hyeon Yeong Roh, Madhan Kuppusamy, Ju-Won Oh, Hyungseok Nam, Youngsoo Lee, See Hoon LeeSynopsis: This review examines BECCS as a large-scale negative emission technology. It highlights interdependencies across the biomass supply, CO₂ capture, transport, and geological storage stages. Challenges include feedstock variability, high moisture, transport impurities, and storage uncertainties. Advances in monitoring and imaging improve reliability, but system-wide integration, standardized management, cost-effective monitoring, and supportive policies are essential for BECCS to achieve gigaton-scale CO₂ removal and contribute to the 1.5 °C climate goal.
Authors: Rongrong Li, Mengqi Ma, and Qiang WangSynopsis: This study maps carbon-negative technology (CNT) innovation across 18 European countries (2013–2023) using a high-dimensional, data-driven evaluation model. Germany, France, and Italy lead in R&D, patents, and economic strength, while Portugal, Slovenia, and Luxembourg lag. Cluster analysis reveals three innovation tiers (“club convergence”), with differing drivers: leading nations rely on macroeconomic foundations, others on government R&D and human capital. Findings inform policy for cross-border collaboration and CNT deployment.
Authors: Emily J Chua, Hilary I PalevskySynopsis: This review addresses monitoring, reporting, and verification (MRV) challenges for mCDR. Current frameworks are costly and complex, limiting project scalability. The authors propose integrating aquatic ecosystem metabolism metrics, derived from low-cost oxygen sensors, to provide real-time, integrative insights into carbon cycling and ecosystem impacts. This approach offers a practical, scalable tool to enhance MRV credibility and track ecosystem responses across mCDR methods and sites.
Authors: Amit Kumar, Arun Kumar Tiwari, Dia Milani, William Kubic, Deóis UaCearnaighSynopsis: This study evaluates a renewable-powered electro-synthetic sustainable aviation fuel (eSAF) framework integrating direct air capture (DAC) and chlor-alkali electrolysis to produce syngas for Fischer-Tropsch synthesis. Optimization via eMethane intermediates reduces hydrogen storage needs. The facility co-produces valuable byproducts and excess CO₂ for geological storage. Economic analysis projects a $162M CAPEX, 12-year payback, and negative carbon intensity (–165 gCO₂/MJ), demonstrating a scalable, energy-efficient, and climate-positive SAF pathway.
THESESAuthors: Tullia CalogiuriSynopsis: This PhD research investigates biologically enhanced Enhanced Mineral Weathering (EMW) using earthworms to improve carbon dioxide removal and soil fertility. Controlled microcosm experiments show living earthworms mainly aid organic carbon stabilization, while dead earthworms promote inorganic carbon formation via microbial activity. Greenhouse trials confirm plant growth further stimulates weathering. The study highlights the role of biotic processes and introduces “dead earthworm-mediated stimulation” as a potential pathway for scalable, sustainable EMW-based carbon removal.
Authors: Ali Bertan KırSynopsis: This thesis explores biomass-based CDR via engineered biochar and its integration with BECCS. Biochars from poplar wood and hazelnut shells, activated with KOH/NaOH and optionally doped with melamine, achieved tunable porosity (up to 986 m²/g) and functional surface properties. Integrated BC+CCS modeling shows biochar offers strong short-term CO₂ sequestration, BECCS ensures long-term permanence, and hybrid systems balance near- and long-term CDR while producing sustainable advanced materials.
WEB POSTSShare REPORTSShare Carbon Removal Updates UPCOMING EVENTSMarch 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“Carbonfuture is the trust infrastructure for durable carbon removal.”
“Supercritical is the gateway to the carbon removal market.”
“The California Air Resources Board (CARB) is the state agency responsible for reducing greenhouse gas emissions in California. CARB leads the development and implementation of strategies to achieve carbon neutrality by 2045 and tracks progress toward that goal. Carbon dioxide removal (CDR) is a critical component of California’s carbon-neutrality pathway, as directed by Senate Bill 905 (Caballero, 2022).”
“Heirloom’s mission is to motigate the worst impacts of climate change by developing the world’s most cost-effective DAC technology to permanently remove CO2 from the atmosphere.”
“Charm Industrial’s mission is to return the atmosphere to 280 ppm CO₂. We convert excess inedible biomass into carbon-rich bio-oil and inject it into underground storage for permanent carbon removal.”
“Climeworks is a leading high-quality carbon removal provider, combining decades of expertise in Direct Air Capture (DAC) technology with a holistic approach to carbon removal solutions.”
“At Reverion, we firmly believe that biogas plays a key role on the path to a 100% renewable, decentralized energy supply for the future. Our vision is to replace today’s widespread combustion engines with state-of-the-art, highly efficient, and flexible micro power plants.”
“Mati Carbon is an award-winning durable carbon removal enterprise with a mission to empower 100 million smallholder farmers by 2040.”
“At Cascade, we’re on a mission to dramatically accelerate progress across high-potential climate solutions — ensuring a healthy, livable Earth for all humanity.”
“Atoco, Inc. is a startup company founded by the distinguished scientist Prof. Omar Yaghi, the inventor of MOF and COF chemistry. Atoco is currently working on technologies in the fields of atmospheric water harvesting and CO2 capture.”
“CUR8 is on a mission to remove 1 billion tonnes of carbon a year. We combine financial and scientific expertise to build high-quality and diverse carbon removal portfolios that enable companies to invest in carbon impact with confidence and ultimately reach net zero.”
Looking for your dream job in CDR? There are 634 jobs available *right now*: check them all out at: CDRjobs Board
PODCASTSThe Quest to Engineer the Best Carbon Removal Credits—One Year of Residual Carbon w/ Ted Christie-Miller | Reversing Climate Change | 388: The Quest to Engineer the Best Carbon Removal Credits—One Year of Residual Carbon w/ Ted Christie-Miller Reversing Climate Change 42:11 |
“Carbon removal used to have technology developers who were also project developers. But oh, the times they are a-changin’...What happens when grizzled CDR veterans pluck technology off the shelf and focus on developing projects that produce highly insurable, investable, and offtakeable carbon removal credits?You get something like Residual Carbon.Ted Christie-Miller is the cofounder of Residual and is on the show to discuss the lessons he learned from one year as the carbon partner of numerous projects he has under development, as well as his process of raising funds from family offices.”
Scaling distributed biochar with Berend De Haas | What goes up, must come down. | EP 12 Scaling distributed biochar with Berend De Haas What goes up, must come down. 41:54 |
“In this episode of What Goes Up Must Come Down, Simon is joined by Berend De Haas, co-founder of Carboneers, a distributed biochar supplier in India and Ghana. Together, they explore the challenges of running biochar projects across multiple countries, the impact of Carboneers’ initiatives, and what the future holds for biochar as a carbon removal solution.”
Policy wins and hard lessons as carbon removal finds its footing | The Carbon Curve The Carbon CurveEpisode 61 is with Giana Amador (Executive Director, Carbon Removal Alliance), Erin Burns (Executive Director, Carbon180), and Peter Minor (CEO, Absolute Climate… 4 days ago · 2 likes · Na’im Merchant “In this inaugural Removers Roundtable episode, host Na’im Merchant sits down with three leaders in the carbon removal space: Giana Amador (Executive Director, Carbon Removal Alliance), Erin Burns (Executive Director, Carbon180), and Peter Minor (CEO, Absolute Climate). They discuss the current state of US carbon removal policy, industry consolidation, and the sector’s evolution from hype to maturity—emphasizing that carbon removal is playing the long game, building toward gigatonnes over decades, not years.”
How CDR Can Survive Trump? - with Jennifer Wilcox | The CDR Policy Scoop | How CDR Can Survive Trump? - with Jennifer Wilcox The CDR Policy Scoop 29:06 |
“In this episode of The CDR Policy Scoop, Sebastian Manhart and Eve Tamme are joined by Jennifer Wilcox, Presidential Distinguished Professor at the University of Pennsylvania and former Principal Deputy Assistant Secretary for the Office of Fossil Energy and Carbon Management at the U.S. Department of Energy.Recorded amid major policy shifts in Washington, the conversation explores what has changed - and what has not - for carbon management and carbon removal in the United States. Jennifer reflects on her time at the DOE during the Biden administration, including the reorientation of federal funding toward climate mitigation, the launch of large-scale demonstration programs, and the Carbon Negative Earthshot.The episode dives into the current landscape: paused or uncertain funding for DAC hubs and purchase programs, the ongoing role of tax credits such as 45Q, and how Congressional appropriations interact with administrative reorganizations. Jennifer explains why some federal incentives remain intact, how unobligated funds could still shape the future, and why tax policy continues to provide a foundation for investment even amid political turbulence.Sebastian and Eve also explore the intersection of AI-driven data center growth, energy infrastructure, and carbon removal - including emerging models where direct air capture integrates with geothermal energy or supports data center cooling. The discussion highlights the importance of aligning CDR with broader industrial priorities such as nuclear, critical minerals, and domestic energy production.The episode concludes with a forward-looking message: safeguard progress by embedding carbon removal in communities, regional strengths, and bipartisan economic value. Policies may shift, but learning, infrastructure, and local ownership create momentum that is difficult to reverse.”
“Concrete has been around for more than 2,000 years, and it remains the construction material of choice for buildings, bridges, tunnels and more. But its popularity means it has a huge environmental impact. What role will concrete play in the future of construction?In this episode we find out how leading companies are taking on one of our most pressing climate challenges and cutting the carbon emissions from concrete production.Doctor Bob Slansky, head of Technical Research and Innovations with Skanska Central Europe, says that the construction industry is on the right path when it comes to reduction of CO2 in concrete.”
YOUTUBE VIDEOSCharm’s 4th Generation Pyrolyzers | Charm Industrial “Autothermal pyrolysis isn’t just an R&D concept — it’s powering our next generation of reactors.Our Director of Pyrolysis Engineering, Joe Polin, and Senior Process Engineer, Jessica Brown, walk through how technology they developed at Iowa State University is now shaping Charm’s 4th Generation pyrolyzers.-Lower energy requirements.-Improved bio oil quality.-Higher throughput.-Deployable to the biomass source.With the support of our partner Frontline Bioenergy, we’re taking autothermal pyrolysis from lab-scale research to scalable, field-ready infrastructure that will put more carbon underground—permanently.”
Re: How much carbon dioxide removal and by when? | Tito - AirMiners He Left Tesla to FIX Climate Change | New Wave with Hugo Rauch “Is direct air capture a distraction, or a necessity for net zero?We’re joined by Thor Gutierrez, Founder & CEO of Sirona Technologies, former Tesla engineer now building one of Europe’s most ambitious direct air capture (DAC) companies.Direct air capture fascinates as much as it divides.Some see it as essential for net zero.Others call it an expensive distraction.In this episode, we unpack what it really takes to scale DAC, economically, technically, and politically, and why starting now might be non-negotiable.”
Oxford Net Zero Showcase: Geological carbon storage | Oxford Net Zero “In this talk, Dr Tom Kettlety discusses his research on geological carbon storage of CO2 emissions.”
Soil Carbon Science Webinar #9: Enhanced Rock Weathering & Soil Carbon Sequestration | 4p1000 Initiative “Enhanced rock weathering (ERW) is gaining increasing recognition as a promising carbon dioxide removal (CDR) strategy. However, its overall effectiveness — and its potential co-benefits — are closely linked to soil processes, nutrient cycling, microbial dynamics, and broader agroecosystem management practices.This webinar convened leading researchers to explore ERW from both mechanistic and applied perspectives, providing insight into the scientific foundations as well as practical implementation considerations. Expert presentations were delivered by Dr. Sara Vicca (University of Antwerp) and Dr. Noah Sokol, Staff Scientist at Lawrence Livermore National Laboratory.”
This is CDR: Accelerating Carbon Removal Startups - CRC 20226 Webinar #5 | OpenAir “For the fifth webinar in the OpenAir Collective’s 2026 Carbon Removal Challenge monthly webinar series, we proudly presented a panel on CDR accelerators, with AirMiners’ Tito Jankowski, Marble’s Mica Taborga Claure, and remove’s Marian Krüger.They discussed their accelerator programs, what they look for in participating startups, the successes that their participants have had, and their advice to student teams participating in the Challenge.”
Forest Residues, Biochar, and Carbon Value: The Dakota Biochar Project | Webinar with Justin McNeal | Grain Ecosystem “Forest Residues, Biochar, and Carbon Value: The Dakota Biochar Project | Live facility tour and webinar recordingHow is biochar actually made? What does a working biochar production facility look like? And how do biochar projects generate revenue from carbon credits, energy, and soil applications?In this live webinar recording, Grain Ecosystem Co-Founder & CCO Jason Dodier joins Justin McNeal, Founder & CEO of Dakota Biochar, for a real-time tour of an operating biochar facility in Rockerville, South Dakota.”
Will Your Biochar Qualify? The ASABE Biochar Standard Explained | Biochar Today “In this episode of The Biochar Show, John Webster interviews leads a conversation that delves into the foundational aspects of biochar standards, emphasizing the importance of consistency, transparency, and market confidence. The guests discuss the challenges faced in the biochar industry, particularly regarding testing methods and the need for standardized practices. They highlight the role of the new American National Standard for Biochar in enhancing trust and facilitating market access. The discussion also touches on the significance of carbon credits and the future of biochar as a scalable climate solution.”
Speaking in Tonnes: Conversations on Carbon Removal with Liverpool Football Club | 1PointFive “It might not seem that something as simple as a jersey would have a big impact on carbon emissions, but once you examine every step of the supply chain, you can see what an achievement it is. Rishi Jain, Director of Impact for Liverpool Football Club, joins us to talk about their sustainability program called the Red Way, as well as the research, work and tools needed to successfully launch their first lower-carbon product*, and what’s next for 1Nil and the Red Way.”
Conference Replay - Carbon Removal - Africa Day, Bio360 Europe 2026 | Bio360 “Speakers featured in this conference: Mark Templeton (Southern African Biogas Industry Association), Aart Van den Beukel (Safisana), Andreas Kangari (Sistema.bio), Gamuchirai Mutezo (Madam Waste), Walter Danner (Snow Leopard Projects / Char2Cool), Musa Msimango (Phambili Energy), Bella Culotta (Circular Bionutrient Education Network), Timo Herbrand (PyroNAM) and Dries Roobroeck (International Institute of Tropical Agriculture).Relive the insights, real-world examples and forward-looking discussions that are shaping Africa’s role in the global sustainable energy transition.”
ABACUS Label: Setting the Bar for High-Quality Nature-Based Carbon Removals | Verra “In this webinar Verra will offer an in-depth exploration of the ABACUS label. Launched in 2024, in partnership with an Amazon-led working group, the ABACUS label identifies carbon credits that are generated under Verra’s Afforestation, Reforestation, and Revegetation (ARR) methodology (VM0047) and that exceed the methodology’s requirements.”
Weekly Carbon Removal Updates from 23 February - 01 March 2026 | Carbon Removal Updates BulletinDEADLINESFollow us on:Twitter | Bluesky | LinkedIn | YouTube | Substack | Podcast 1 | Podcast 2
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