 | | | | Links to recent scientific papers, web posts, upcoming events, job opportunities, podcasts, and event recordings, etc. on Carbon Dioxide Removal TechnologyThis newsletter provides carbon dioxide removal / negative missions technologies coverage free of charge and advertising. We rely on donations from readers like you to keep going. Please donate now to support our work.
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 HIGHLIGHTSSCIENTISTS WIN NOBEL PRIZE FOR MOF INNOVATION: Scientists from Japan, the UK and Jordan have been awarded the Nobel Prize in Chemistry for creating molecular constructions with potential to help combat climate change. The molecular constructions, called metal-organic frameworks (MOFs), have large spaces through which gases and other chemicals can flow, with applications including capturing CO2 (Direct Air Capture) and harvesting water from desert air. The laureates, Susumu Kitagawa, Richard Robson and Omar M. Yaghi, will share 11 million kronor for their development of MOFs. ONE OF THE WORLD LARGEST DAC FACILITY: Deep Sky, the Montreal-based CDR project developer, has selected Manitoba, Canada as the site for one of the world’s largest CDR facilities. The project, Deep Sky Manitoba, will target an annual capacity of 500,000t of CO₂ removal once fully operational, building on Canada’s growing position in engineered carbon sequestration. CALL FOR CONSULTATIONS: Isometric has released a draft protocol for CDR via Agroforestry for public consultation. This draft protocol outlines requirements and procedures for projects that remove carbon by planting or increasing forest cover integrated within agricultural landscapes. Deadline to provide comments: 30 October 2025 Q3 2025 CDR MARKET REPORT: According to a new report by ClimeFi, the CDR market surged in Q3 2025 with 8,385 kt of new contracts signed, a 584% YoY increase. 19 suppliers issued credits, 11 new buyers joined, and policy momentum grew across the US, UK, Germany, and Korea. CDR RESOURCE: The Grantham Research Institute, in partnership with AlliedOffsets, has relaunched TRACEcdr, an upgraded tool to boost transparency in the CDR market. The interactive dashboard helps policymakers, developers, and buyers track CDR monitoring, reporting, and verification. RESEARCH PAPER: The albedo effect, a measure of how well a surface absorbs or reflects sunlight, could entirely negate the CDR capacity of more than 10% of almost 200 forest carbon offset projects studied by researchers in a paper published in Nature Communications. Read on to unpack more updates: COMMERCIAL NEWS RESEARCH PAPERSAuthors: Darliane Cristina Soares de Souza, Juciane Vieira de Assis Freire, et al.Synopsis: A bibliometric analysis of 448 studies (2009–2025) on biochar carbon persistence highlights growing global research interest in this key CDR method. China, the U.S., and Australia lead in output, with the Chinese Academy of Sciences and researcher Yong Sik Ok most cited. Findings show rising publication trends but call for improved modeling and interdisciplinary approaches to strengthen biochar’s role in climate mitigation and carbon accounting.
Authors: Charles J. Cunningham, Andrew Guertin, Marine Gelin, Louis A. Derry, Hannes H. Bauser, et al.Synopsis: A year-long field experiment at Biosphere 2’s Landscape Evolution Observatory quantified basalt-based CDR via enhanced rock weathering (ERW) at the hillslope scale. Continuous monitoring of chemistry and subsurface dynamics revealed dilution-driven bicarbonate trends and declining CO₂ uptake with higher water saturation. Measured CDR rates (−13.45 log₁₀ mol C m⁻² s⁻¹) align with prior studies, highlighting hydrologic and geochemical controls on basalt weathering efficiency.
Authors: Tristen Myers Stewart, Peter Regier, Kyle Hinson, Carolina Torrez Sanchez, Quinn Mackay, Nicholas David Ward, Jessica CrossSynopsis: Researchers assessed the performance of commercial pH and pCO₂ sensors for mCDR monitoring through mesocosm and field tests simulating OAE. Results show that pH uncertainty strongly affects total alkalinity estimates, and while sensors can detect mCDR signals, they underestimate surface pH changes by 35–55%. The study underscores the need for improved sensor accuracy and integration with biogeochemical models to advance reliable mCDR MRV systems.
Authors: Joseph Romm, Stephen Lezak and Amna AlshamsiSynopsis: A systematic review of carbon offset literature finds persistent overcrediting, often by factors of five to ten, due to unresolved issues of additionality, leakage, and permanence. Despite decades of reform, offset quality remains low, threatening both voluntary and emerging compliance markets under COP29. The authors urge a shift toward high-integrity, durable carbon removal and alternative finance models, warning that without strict quality standards, offsets could undermine global climate goals.
Authors: Yifang Zhu, Jundong Wang, Yang Ou, et al.Synopsis: Researchers developed a bio-inspired capacitive decarbonization (CDC) reactor that mimics coral calcification to remove dissolved inorganic carbon (DIC) from seawater as CaCO₃ using seawater-derived Ca²⁺ and renewable electricity. The system achieves up to 34% DIC conversion with minimal energy use (2.5 kJ mol⁻¹ CO₂) and operates stably for 100 hours. A mineral-based re-alkalinization step restores seawater pH, and modeling suggests CDC could remove 11–438 Mt CO₂ globally by 2100.
Authors: Raphael Apeaning, Puneet Kamboj, Mohamad Issa HejaziSynopsis: Using the Global Change Analysis Model (GCAM v6.0), this study explores how unequal access to CDR technologies could worsen global inequality under a 1.5 °C pathway. Scenarios show carbon prices rising from $588 to $937/tCO₂ by 2055, and surpassing $3000/tCO₂ in some regions by 2100, when CDR is constrained. Results highlight how limited CDR access may intensify economic, energy, and food security disparities, stressing the need for equitable climate strategies.
Authors: Peng Wang, Ji Liu, Ying Liu, Lidong Mo, Junxi Hu, Zhiming Qi, Yong He, Qianjing JiangSynopsis: A global meta-analysis of 834 datasets from 77 studies reveals that cropland management strongly influences soil organic carbon (SOC) through microbial necromass carbon (MNC). Combined use of mineral fertilizers and manure yields the greatest SOC (4.91 Mg C ha⁻¹) and MNC (3.78 Mg C ha⁻¹) gains, with microbial necromass contributing up to 54.5% of new SOC. Sustained nutrient inputs enhance microbial efficiency and stable carbon formation, underscoring MNC’s vital role in long-term soil carbon sequestration.
Authors: Lynn M. Riley, Susan C. Cook-Patton, Loren P. Albert, Christopher J. Still, Christopher A. Williams & Jacob J. BukoskiSynopsis: Analysis of 172 afforestation, reforestation, and revegetation projects in the Voluntary Carbon Market shows over 10% could have climate benefits entirely offset by albedo change, while 25% may see reductions by half. Most projects are located where albedo effects are minimal, and 9% may gain additional benefit. The study proposes incorporating albedo accounting into carbon crediting systems and calls for new tools to capture other biophysical impacts such as evapotranspiration.
Authors: Chengbo Li, Mingming Guo, Bo Yang, Yuan Ji, Jing Zhang, et al.Synopsis: Renewable electricity-driven capture and conversion of oceanic dissolved inorganic carbon offers a sustainable pathway to negative emissions. Researchers developed an electro-biocatalytic hybrid system that captures over 70% of CO₂ from seawater with low energy use (3 kWh kgCO₂⁻¹) and converts it into formic acid, then into succinic acid via Vibrio natriegens. This ocean-based recycling approach could enable sustainable biochemical production from marine carbon sinks.
Authors: Ni Huang, Li Wang, Jie Pei, Luying Zhu, Shidong Liu, Zheng Niu, Biswajit NathSynopsis: Intact boreal forests lose carbon sequestration capacity as they age, according to a global analysis using seven NEP datasets and forest age data. Older forests showed lower NEP and weaker increases over time (2001–2015) than younger ones. The decline stems from reduced productivity that outpaces respiratory losses. While minor climate-driven productivity gains may mask this trend, results suggest aging boreal forests risk shifting from carbon sinks to net carbon sources.
Authors: Hamed Sanei, Małgorzata Wojtaszek-Kalaitzidi, Niels Hemmingsen Schovsbo, et al.Synopsis: Biochar’s carbon removal potential depends on the permanence of its stable carbon. This study refines the Inertinite Benchmarking (IBRo₂) method to directly measure stable carbon fractions instead of relying on decay models. Using thermochemical analysis, microscopy, and random reflectance (Ro > 2.0 %) to quantify inertinite, the approach ensures precise classification and uncertainty assessment via Monte Carlo simulations. The framework enables transparent, statistically robust biochar CDR crediting.
Authors: Zihan CHEN, Jia LISynopsis: This study proposes a hybrid consortium blockchain framework to enhance transparency, efficiency, and scalability in CDR systems. Integrating decentralized governance with IoT monitoring, it improves data integrity, automates carbon verification, and optimizes energy use. Simulations show a 22–30% cut in administrative overheads and 15% better data accuracy. The model promotes trust, accountability, and interoperability in CDR reporting, advancing digital climate governance.
Authors: Alexandra J. Ringsby, Marc N. Roston, Gian M. Mallarino, Mislav Radic, Kate MaherSynopsis: This paper introduces the Objective Atmospheric Basis (OAB), a unified, technology-neutral accounting framework for CDR. By tracking carbon fluxes through an environmental ledger, OAB treats emissions as liabilities and removals as assets, enabling transparent, cross-jurisdictional verification. Applied to biochar carbon removal, it exposes flaws in current crediting systems and offers a net-zero-consistent method for harmonizing carbon accounting with Paris Agreement goals.
Authors: Aimie L.B Hope, Naomi VaughanSynopsis: This study examines how social science and humanities insights are often lost in CDR decision-making. Through 26 interviews with experts from policy, academia, industry, and NGOs, the research identifies key points where qualitative evidence is filtered out—during expert selection, panel discussions, and evidence synthesis. Findings highlight institutional and cognitive biases in non-statutory consultations and propose ways to strengthen real-world evidence integration in CDR policy processes.
Authors: Divya Meril, Piliyan Raju, Felix Sugantham & Santhanam PerumalSynopsis: This review evaluates the environmental sustainability of major CDR methods—DAC, BECCS, afforestation/reforestation, ocean alkalinity enhancement, and soil carbon sequestration—through Life Cycle Assessment (LCA). Results reveal significant trade-offs: BECCS risks land and water strain, DAC depends on clean energy, and nature-based options face reversibility and land limits. The study urges integrating renewables, minimizing ecological harm, and improving carbon permanence monitoring for sustainable large-scale CDR deployment.
Surface albedo declines after the project starts as the land surface becomes less reflective. As the forest grows, CO 2 is removed from the atmosphere. The net carbon dioxide equivalent (CO 2e) effect is the net of CO 2 removal and albedo change. As shown, the albedo deduction is expected to reach its maximum effect before CO 2 removal reaches its maximum effect. (Source)WEB POSTSShare Carbon Removal Updates REPORTSCDR demand in the 2040s and by 2050 in the JRC scenario is roughly double that in the IAS3 scenario (Source)BOOKSUPCOMING EVENTSOctober 2025November 2025December 20252026We 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 JOB OPPORTUNIRTIES“Residual is a carbon removal project developer, working with large industrial partners to transform biogenic waste into high-value carbon removal projects.”
“Chestnut Carbon is a leading developer of nature-based carbon removal solutions, focused on generating high-quality, U.S.-based forest carbon projects that are additional, verifiable, and designed to accelerate the path to net zero.”
“Skytree enables a transition to a world with cleaner Air for everyone. We do this by developing and deploying smart technology that captures atmospheric carbon dioxide, enabling its use or storage to combat climate change and aid society and businesses around the world.”
“Carbonfuture is the Trust Infrastructure for durable carbon removal.”
“PUR has pioneered climate and nature interventions within value chains, earning recognition as a certified B Corp and a global leader in nature-based solutions.”
“CREW’s technology and services make wastewater treatment cheaper and more efficient, while permanently sequestering CO₂.”
“GCI focuses on advancing and evaluating the environmental, economic, and societal aspects of carbon dioxide removal (CDR), particularly carbon capture and utilization (CCU). New projects include:Collaborating with the Korea Research Institute of Chemical Technology (KRICT) to develop and validate a Korean CO₂ Utilization Life Cycle Assessment Toolkit through global partnerships and applied research.Evaluating the environmental and economic opportunities and barriers to carbon capture and conversion in the American Midwest, and how these complement regional carbon sequestration efforts.”
“Öresundskraft is one of the first players in Sweden to build a complete value chain for carbon capture, transport and storage.”
“At Terraformation, we restore degraded land into thriving forests to capture carbon and combat climate change.”
“Mast Reforestation develop carbon removal credits through the burial of post-wildfire biomass to finance reforestation across the American west. We address areas that are ecologically and financially challenged after high severity wildfire.”
“AIRCO is a world leader in carbon conversion technology, paving the way to global energy security by transforming CO₂ into a valuable resource. Its proprietary AIRMADE™ Technology is an adaptable platform that allows any industry to efficiently produce high-demand, fully-formulated synthetic fuels from waste CO₂ and hydrogen.”
“CarbonCure Technologies is a fast-growing carbon utilization tech company deploying easy-to-adopt solutions that enable concrete producers to use captured CO₂ to produce reliable, lower carbon concrete mixes.”
Looking for your dream job in CDR? There are 579 jobs available *right now*: check them all out at: CDRjobs Board
PODCASTS[OVERSHOOT] Part 2: Carbon Suckers | | [OVERSHOOT] Part 2: Carbon Suckers Macrodose 30:24 |
“Who’s going to clean up the mess?Dangerous amounts of carbon have been dumped in the atmosphere - so someone has to clean up the mess. Enter the dream - or delusion - of sucking carbon out of the sky. We trace how a backup plan for tackling climate change became plan A, why fossil fuel companies love it, and the staggering scale of the carbon sucking that must now be done - and whether it can even work.”
“In this week’s episode, host Daniel Raimi discusses carbon removal with Jennifer Wilcox, a professor at the University of Pennsylvania who recently coauthored a paper titled, “Elevating Carbon Management: A Policy Decision-Making Framework and Rubric for the 21st Century.” Wilcox discusses the existing gaps in current policies related to carbon removal and important considerations when amending and creating new policies. She also addresses the recent change to the 45Q subsidy (originally included in the Inflation Reduction Act of 2022 and revised by Congress in the budget reconciliation bill signed on July 4, 2025), assessing how the updated tax break offers incentives for carbon removal.”
Marian Krüger - Carbon Capture: Technologies, Competitiveness, and the Importance of Demand-side Policy | Climate Economics With Arvid Climate Economics with Arvid Viaene7 days ago · Climate Economics with Arvid “In this interview, host talked with Marion Kruger, co-founder of Remove. He explains how carbon removal technologies are essential for achieving net zero targets by compensating for emissions that are impossible or extremely expensive to eliminate. Carbon removal is what puts the “net” in net zero, and by 2050, we’ll need to remove 5-10 gigatons of CO2 annually—creating an industry comparable in size to today’s oil and gas sector.He also has a new book out called “Race to Zero, How Companies Can Lead the Way to Climate Neutrality” , which I highly recommend.”
“Today’s carbon credit demand is just the tip of the iceberg,” Aadith Moorthy, Boomitra CEO | Carbonsations | "Today's carbon credit demand is just the tip of the iceberg," Aadith Moorthy, Boomitra CEO Carbonsations 37:48 |
“Our guest in this episode is Aadith Moorthy, founder and CEO of leading soil carbon project developer Boomitra. Boomitra has facilitated the world’s largest soil carbon credit purchases, and Aadith shares his insights about how converging voluntary and compliance markets are already shaping what is to be the vast carbon market of tomorrow.”
I See a Darkness—The Climate Movement Expects Deep Overshoot | Reversing Climate Change | 369: I See a Darkness—The Climate Movement Expects Deep Overshoot Reversing Climate Change 42:19 |
“I came back from New York Climate Week energized. I loved seeing everyone. But many of the conversations I had profoundly scared me. We’re staring into the abyss of deep overshoot, and it’s staring back into us.What would it mean for us to make peace with a world that doesn’t decarbonize fast enough? That doesn’t scale carbon removal before tipping points are reached? That is forced into more radical geoengineering approaches that may just be one more layer of intervention that we will likely manage just as badly?This is an emotional show. It’s about war. It’s about the Holocaust. It’s about what it means to fail, and to fail gracefully, and how imagining how you would feel if you lost everything can potentially offer an unexpected lightness.”
The Removal Compliance System: North Star for CDR demand in Europe? - with Francesca Battersby | The CDR Policy Scoop | The Removal Compliance System: North Star for CDR demand in Europe? - with Francesca Battersby The CDR Policy Scoop 27:25 |
“The EU carbon removal purchasing programme and potential integration of removals into the ETS have generated plenty of buzz. Yet these could just be a first step in a longer policy sequence.Could a CDR Compliance System be the north star to aim for in the longer term?Carbon Gap has just unveiled its new report looking at how to drive long-term demand for permanent carbon removals across Europe.In it, they examine different options for a Removal Compliance System (RCS), looking at both traditional emissions-based obligations and economy-wide mandates.Could the RCS spark fresh opportunities and big debates? How can Europe develop and design a new mode of compliance?We’re thrilled to welcome special guest Francesca Battersby, Senior Policy Analyst at Carbon Gap and the lead author of the report, to explore this exciting topic together. She brings all the exclusive insights to help dissect the concepts on the table.Join co-hosts Eve Tamme and Sebastian Manhart as they explore with Francesca what makes the RCS a potential game-changer and what issues to watch out for.”
YOUTUBE VIDEOSFrom Innovation to Investment: Evaluating Durable Carbon Removal | BeZero Carbon From Targets to Tonnes | Carbon Gap “Join us as we launch a new in-depth report that explores the potential design and impact of a Removal Compliance System (RCS) to complement existing EU policy mechanisms and drive long-term demand for permanent removals while upholding environmental integrity.”
We need to buy time for carbon removal and decarbonization to scale | Tito - AirMiners Carbon credits and the fight for transparency with Tommy Ricketts (BeZero Carbon) | Modo Energy “Tommy Ricketts is co-founder and CEO of BeZero Carbon, a global carbon ratings agency providing independent assessments of the quality and impact of carbon credits to help markets scale with integrity. For more information on BeZero Carbon, head to their website.”
Alison Bennett: Australia’s future terrestrial carbon sinks | Australia’s climate simulator ACCESS-NRI Weekly Carbon Removal Updates from 06 October - 12 October 2025 | Carbon Removal Updates Bulletin DEADLINESFollow us on:Twitter | Bluesky | LinkedIn | YouTube | Substack | Podcast 1 | Podcast 2
Support us here:Share Carbon Removal Updates
© 2025 Carbon Removal Updates 548 Market Street PMB 72296, San Francisco, CA 94104 Unsubscribe 
| |
  |
|