 | | | | Links to recent scientific papers, web posts, upcoming events, job opportunities, podcasts, and event recordings, etc. on Carbon Dioxide Removal TechnologyCurrent offtake contract term characteristics, by CDR technology (Source)For those building, investing, or leading in CDR, Carbon Removal Updates aims to deliver a consistent edge. If you find it valuable, consider supporting its continued growth with a paid subscription. Donate < $10 Get 20% off a group subscription NOTE: If you’d like to submit CDR-related news for our next newsletter, please send it here: Message Andrew Lockley JUMP TO SECTIONTHIS WEEK’S TOP CDR HIGHLIGHTSSymbiosis Coalition Backed Living Carbon Deal: Symbiosis Coalition members Google, McKinsey, and Meta have signed long-term offtake agreements with Living Carbon to remove 131,240 tonnes of CO2 over 10 years. This project focuses on restoring degraded US Appalachian mine lands through photosynthesis-enhanced trees, marking a significant investment in high-quality, nature-based CDR. CUR8 & Isometric Launched 2030 CDR Portfolio: CUR8 and Isometric have launched The 2030 Portfolio, giving buyers access to high-quality carbon removal from project developers across a range of durable technologies. With 2030 commitments approaching, the portfolio is designed for buyers seeking credible carbon removal to meet their net zero goals. The first five suppliers in the portfolio include Carboneers (Biochar), Charm Industrial (Bio-oil), CREW Carbon (Wastewater Alkalinity Enhancement), Graphyte (Subsurface Biomass Removal and Storage), and Vaulted Deep (Biomass Geological Storage). CDR.fyi & OSCAR Launched Survey: CDR.fyi and Open Standard Carbon Removal Purchase Agreement (OSCAR) have launched the first survey dedicated to understanding how carbon removal suppliers navigate CDR offtake agreements, from how long deals take to close, to what legal resources they rely on, to where the biggest negotiating challenges arise. Gigablue Asked for Regulation Changes to Allow mCDR in NZ: An Israeli-founded startup, Gigablue has lobbied the New Zealand government for changes to local regulations so it can proceed with marine carbon removals in the country’s waters, RNZ reported. Request for Proposals: The Symbiosis Coalition has issued its second request for proposals for high-quality carbon removals, broadening its scope beyond reforestation and agroforestry to include mangrove projects. With this expansion, the coalition is for the first time moving into support for blue carbon initiatives. They are also hosting informational webinars on this RFP process. Italy Launched National CDR Network: Italy is launching its first dedicated carbon removals network, Rete Italiana Rimozione Carbonio (RIRC), aiming to consolidate a fragmented national landscape and accelerate deployment of CDR technologies. The initiative seeks to align stakeholders, strengthen governance, and position Italy within emerging EU carbon removal frameworks. Interested parties can register to attend the RIRC inauguration event here. France Issued €13.7M Biochar Tender: SICTOM PEZENAS-AGDE in southern France has launched a €13.7 million tender for a long-term public service concession to build and operate a biochar production facility. Submissions must be sent by May 29, 2026. EPA Approved First US mCDR Test: The EPA has approved a first-of-its-kind mCDR test in US federal waters, authorising Carboniferous to deposit biomass on the ocean floor off Louisiana. The permit notably omits direct reference to climate change, reflecting shifting federal framing. The decision has sparked debate over governance, transparency, and emerging ocean-based CDR pathways. Read on to unpack more updates: COMMERCIAL NEWS Share RESEARCH PAPERSAuthors: Darius Sultani, Sebastian Osorio, Claudia Günther, Michael Pahle, et al.Synopsis: This study evaluates how integrating permanent CDR into the EU Emissions Trading System (ETS) could influence both CDR deployment and allowance prices. Using the LIMES-EU model with updated DAC cost projections, results suggest that by mid-century, EU ETS integration could incentivize 68–86 Mt CO₂/year of BECCS and DACCS, moderating price spikes under a tightening cap. However, risks include over-reliance on future removals and potential environmental impacts from excessive BECCS. The study recommends phased, governance-informed integration, with a long-term vision of transforming the ETS into a removals trading scheme.
Authors: Rodrigo Valencia Cotera, Paul Bowyer, Lars BuntemeyerSynopsis: This study examines public acceptance of Direct Air Capture and Storage (DACCS) in Germany, where CO₂ storage has historically faced opposition. Survey results indicate low familiarity with DACCS. Positive acceptance is driven mainly by perceived benefits, while concerns about “tampering with nature” reduce acceptance. Notably, providing more information decreased acceptance, and industry and government were the least trusted actors. The study highlights the critical role of building public trust for successful DACCS deployment.
Authors: Htut San Hkaung, Naito Yamashita, Nono Kimotsuki, et al.Synopsis: In this study, acid mine drainage (AMD) systems are explored as novel sites for Enhanced Rock Weathering using basaltic mining waste. Results show rapid mineral dissolution, sustained carbon removal potential, and improved water chemistry. The approach offers dual benefits—carbon dioxide removal and passive remediation—highlighting AMD sites as scalable, resource-efficient pathways for climate mitigation.
Authors: Ashwin Murthy, Korey Silverman-Roati, Romany M. WebbSynopsis: In this study, coastal enhanced weathering (CEW) is examined as a carbon dioxide removal strategy, focusing on its potential and legal implications in Massachusetts. While CEW can accelerate natural carbon sequestration in coastal zones, regulatory uncertainty arises under existing U.S. federal and state environmental laws. The paper highlights the need for clarity on how these laws apply to CEW projects before large-scale deployment.
Authors: Delaney Pues, Anna Bridel, Valeria Cuevas, Zachary Dove & Sikina JinnahSynopsis: This review analyzes 177 CDR perspectives studies (2002–2025) through a justice lens. Findings show research is dominated by Global North actors, focuses on measuring support rather than dissent, and uses methods that limit marginalized voices. The study calls for: including vulnerable populations, centering justice in research questions, and encouraging researchers to reflect on their own biases to foster more equitable and inclusive CDR futures.
Authors: Delu Wang, Fan Chen, Chunxiao Li, Lawrence LohSynopsis: In this study, the future cost and benefits of CCS and BECCS in China are analyzed using a learning-curve framework incorporating efficiency upgrades. Results indicate significant potential for electricity cost reductions ($23–$56/MWh) and over 50% improvement in economic-environmental benefits as learning accumulates. Efficiency upgrades support cost decline, while capital and fuel costs dominate. Findings inform strategic planning for coal-dependent nations transitioning to low-carbon energy.
Authors: Alba Yamuza-Magdaleno, Tomás Azcárate-García, et al.Synopsis: In this study, temperate marine macrophyte communities were assessed for carbon dynamics under warming and invasive seagrass conditions. Warming reduced the recalcitrant fraction of dissolved organic carbon by 28%, increasing labile carbon, while the invasive species had minimal impact. These changes suggest rising temperatures may weaken coastal carbon storage, with implications for global carbon budget estimates.
Authors: Jacob S Jordan, Mohammad Afzal Shadab, Valentina Prigiobbe, Yoshiki Kanzaki, Noah Planavsky, Chris ReinhardSynopsis: In this study, ERW is analyzed through a theoretical framework for pH-dependent transport of calcium and magnesium in soils. Using a Riemann-problem approach, the study models adsorption, desorption, and solute wave interactions, providing insights into bicarbonate formation and alkalinity transport. These results help interpret experimental data and advance understanding of the mechanisms driving ERW efficacy for carbon dioxide removal.
Authors: Zhonglu Liu; Zhengyang Xu; Kaiyue YuSynopsis: In this study, carbon risk is shown to significantly reduce firm value among Chinese A-share companies (2008–2023). The effect operates through operational volatility, financing constraints, and investor sentiment, while strong digital and green transformations mitigate impacts. Findings highlight mechanisms of carbon risk pricing, offering insights for investment, corporate strategy, and policy in China’s institutional context.
Authors: Ricardo Fernandes, Alberto Alamia, Sina Kalweit, Marta VictoriaSynopsis: In this study, multiple CDR strategies, afforestation, perennialisation, biochar, and enhanced rock weathering, are integrated into a high-resolution European energy system model. Results show that using these CDRs reduces system costs by 9%, fully utilizes regional potentials, and eliminates the need for direct air capture when combined with CO2 transport and underground storage, highlighting cost-effective pathways to climate neutrality.
Authors: Aneurin Merrill-Glover, James Palmer, RoosaSynopsis: This study examines how peatland carbon credits are positioned within UK natural capital markets. Restoration through rewetting is crucial for climate mitigation, yet current market rules favor removal credits over emission-prevention credits, limiting investment in peatlands. Interviews and analysis reveal efforts to redefine emission accounting and responsibility pathways, highlighting tensions between market logics and the ecological, social, and cultural value of peatlands.
Authors: Johanna Mehnert, Kati Koponen, Tomi Lindroos, Tiina Koljonen and Heidi KirppuSynopsis: This study evaluates the energy system impacts of CDR in Finland to 2050, modeling BECCS, biochar, DACCS, and enhanced weathering (EW). Results show DACCS drives most CDR growth, EW is fully utilized, and biomass constraints limit BECCS and biochar expansion. Binding CDR targets ease achieving net-zero emissions, but substantial deployment across technologies is still needed, highlighting systemic interactions between CDR and the broader energy system.
Authors: Qingshan Li,Lele Zhang,Lei Zhao &Jiaoting PengSynopsis: This study synthesizes emission mitigation, carbon sink expansion, and ecosystem-based approaches to provide a unified framework for climate stabilization. Results show that combining renewable energy, sustainable industry, engineered CDR, and ecosystem restoration can cut global emissions by over 50%, while delivering co-benefits for biodiversity and resilience. Integrated deployment of all three pillars, supported by coherent policy and international cooperation, is essential to meet Paris Agreement targets.
Authors: Eric W. Slessarev, Jennifer Pett-Ridge, Kyungjin Min, et al.Synopsis: This study examines the impact of deep-rooted switchgrass on soil carbon in the central and eastern USA. While surface SOC gains were modest and not statistically significant, root carbon consistently increased under switchgrass, adding ~0.6 kg C m⁻² to the top 1 m of soil without accelerating SOC decomposition. Results indicate that reintroducing deep-rooted perennials can meaningfully enhance belowground carbon stocks compared to shallow-rooted annual crops.
Authors: Caleb H. Geissler, Robin X. Zou, Mario Ramos, et al.Synopsis: This study assesses decarbonized heat options for industrial applications, including sorbent-based DAC, across the US. Geothermal offers the lowest costs when resources are suitable ($16/MWh), while concentrated solar often outperforms heat pumps where electricity is carbon-intensive or expensive. Results highlight that optimal heat decarbonization depends on location, technology, and cost metric, emphasizing the need for geospatially informed decisions in transitioning heat demand to low-carbon energy.
Authors: Amrita Bhaumik, Nicolás Sánchez, Silvan Urs Goldenberg, et al.Synopsis: This study examines the effects of ocean alkalinity enhancement (OAE) on the gelatinous zooplankton Oikopleura dioica in a 53-day mesocosm experiment. Across ΔTA 0–600 μmol kg⁻¹ using olivine and slaked lime, OAE had no detectable impact on O. dioica abundance, feeding, or house production; variations were driven by prey availability. Results suggest this species is physiologically resilient to moderate OAE, highlighting the need to include gelatinous zooplankton in future ecosystem impact assessments at higher alkalinity levels.
How the EU can utilize its carbon market to scale up carbon dioxide removal (Source)Leave a comment WEB POSTSEGU26 CDR PAPERSShare Carbon Removal Updates REPORTSShare Carbon Removal Updates UPCOMING EVENTSApril 2026May 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“InPlanet is a mission-driven, remote-first ClimateTech startup headquartered between Germany and Brazil with hubs in Sao Paulo, Rio de Janeiro, New York and London.”
“DACMA GmbH, headquartered in Hamburg, Germany, is a pioneering DAC manufacturer for high-quality DAC systems and carbon credits.”
“Carbon180 is a new breed of climate NGO on a mission to reverse two centuries of carbon emissions.”
“InPlanet is a mission-driven, remote-first ClimateTech startup headquartered between Germany and Brazil with hubs in Sao Paulo, Rio de Janeiro, New York and London.”
“Stripe is a financial infrastructure platform for businesses. Millions of companies - from the world’s largest enterprises to the most ambitious startups - use Stripe to accept payments, grow their revenue, and accelerate new business opportunities.”
“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.”
“Capture6 is developing desalination and brine management solutions and creating environmental benefits to accelerate the transition to a decarbonized global economy.”
“Allianz SE are recognized as a trusted partner for protecting and growing your most valuable assets, offering a comprehensive portfolio of products, including property and casualty insurance, life and health insurance, and asset management services, tailored to meet the various needs of individual and corporate clients worldwide.”
“Carbonfuture is building the trust infrastructure needed to scale durable carbon removal, a critical piece for us all to reach net zero.”
“Puro.earth is the world’s leading crediting platform for engineered carbon removal.”
Looking for your dream job in CDR? There are 547 jobs available *right now*: check them all out at: CDRjobs Board PODCASTSSustaera - electric DAC | Reviewer 2 does geoengineering | Sustaera - electric DAC Reviewer 2 does geoengineering 1:14:27 |
“@geoengineering1 interviews Cory Sanderson, CTO and co-founder of Sustaera, a North Carolina-based Direct Air Capture (DAC) startup focused on low-cost carbon capture, separations chemistry, and process scale-up.Sanderson traces his journey from Air Products, where he worked on vacuum swing adsorption CO₂ capture for an SMR hydrogen plant and encountered economic and infrastructure constraints, to founding Sustaera. He also explains the company’s shift from CO₂-to-methane materials, which depended on costly clean hydrogen, to a pure DAC approach.He then outlines Sustaera’s system, which utilises a fixed, cartridge-based monolithic contactor with laminar-flow channels and a conductive, structured sorbent that integrates resistive (Joule) heating directly into the material, thereby improving efficiency, stability, and regeneration speed.He highlights the novelty of the design, noting that Sustaera has achieved over 90% heating efficiency in lab tests, 20-30 minute adsorption cycles, and multi-year sorbent lifetimes. With a modular, catalytic-converter-style manufacturing approach, the company is currently at TRL 5, has pre-sold removals at $700/ton to Stripe and Shopify, and is raising $8.6M to build its first outdoor commercial unit.
“In this episode of Plan Sea, hosts Anna Madlener and Dr. Wil Burns sit down with Dr. Gabby Kitch and Anu Khan from the Carbon Removal Standards Initiative (CRSI) — a nonprofit organization using science and policy to unlock carbon dioxide removal (CDR) opportunities — to break down their recently published roadmap, Our Coasts, Resiliency, and Carbon Dioxide Removal. The report identifies three coastal resilience pathways that offer possibility for alignment with ocean-based carbon dioxide removal.”
CDR Buyers Deep Dive - Part 1: Why The £$€¥ is Anyone Buying This? | The Carbon Removal Show | S4 #8 | CDR Buyers Deep Dive - Part 1: Why The £$€¥ is Anyone Buying This? The Carbon Removal Show 40:24 |
“In the first part of our buyers deep dive, Tom and Emily start with a deceptively simple question: why is anyone buying carbon removal at all? In a market with no universal mandate, high prices, and a dash of reputational risk, the real surprise is not that buying is hard. It’s that any company manages to do it in the first place.”
Lorena Neira - ‘Building Climate Tech for the Ocean’ | A Drop in the Ocean – The Podcast Amplifying Ocean-Caring Voices | Lorena Neira - 'Building Climate Tech for the Ocean' A Drop in the Ocean – The Podcast Amplifying Ocean-Caring Voices 49:07 |
“In this episode of A Drop in the Ocean, I sit down with Lorena Neira - climate scientist turned entrepreneur and co-founder of Blusink.Lorena is working at the intersection of ocean science, carbon removal, and ecosystem restoration – building technology that doesn’t fight nature, but works with it.We explore her journey from open-ocean research to launching a ClimateTech startup, and the challenge of turning complex science into something the world can actually understand, trust, and adopt.Blusink’s approach is deceptively simple: using engineered materials placed on the seafloor to accelerate natural carbon capture while restoring marine ecosystems.But behind that simplicity sits a much bigger story.
YOUTUBE VIDEOSWebinar Recording: Examining MRV practices across five OAE project | Carbon to Sea “On March 31st, 2026, Carbon to Sea hosted this “Examining MRV Practices Across Five OAE Projects” webinar featuring leading scientists from the five projects included in our recently published MRV Database. The virtual event focuses on introducing the database and its features, as well as each project’s monitoring approach, rationale, trade-offs, challenges, and future plans.The Interactive MRV Database is designed to be a living tool that will be updated approximately once a year as new projects launch and practices evolve. Beyond updates, we encourage projects to submit information for consideration and inclusion. We aim to better understand and document emerging practices, especially around measurement strategies, sensor development, and the use of this dataset to benchmark and improve MRV.”
Debunking biogenic emissions | Carbon Gap “These emissions, from agriculture, waste, and ecosystem change, make up a significant share of global greenhouse gases. Yet they are often poorly accounted for and rarely addressed directly in policy.Our analysis shows a striking mismatch: human-caused biogenic emissions are currently around 9x larger than the temporary removals intended to balance them.”
Microalgae Carbon Fixation and Sinking | Puro • earth Enhanced Rock Weathering - Updated Edition 2025 | Puro • earth Climate Repair: Hope or Hype? at Cambridge Festival | Centre for Climate Repair “As global temperatures continue to rise, the idea of “repairing” the climate is capturing public imagination — and stirring controversy. From ocean-based carbon removal to solar radiation management, a host of interventions are being proposed as essential tools to combat climate change, while others warn they are risky distractions from cutting emissions and transforming our energy systems.This engaging panel discussion will explore the growing field of climate repair and ask whether it represents genuine hope for a cooler planet, or simply the latest hype. Our expert speakers will examine the science behind these technologies, their potential benefits and risks, and the ethical and political questions surrounding their deployment.With time for audience questions, this session promises an open and lively discussion about one of the most debated topics in climate science today. Whether you are an optimist, a sceptic, or simply curious, Climate Repair: Hope or Hype? invites you to join the conversation and form your own view on repairing our planet.”
This is CDR: Buying Back the Future: Tips from Leading Carbon Removal Buyers - CRC 20226 Webinar #6 | OpenAir “Our sixth webinar in the OpenAir Collective’s 2026 Carbon Removal Challenge monthly webinar series featured a panel on purchasing carbon removals, with Carbon Direct’s Luke Hawbaker, Wren’s Sophie Westover, Shopify’s Mitchel Selby, and Milkywire’s Aidan Preston.They discussed their carbon removal purchasing programs and portfolios, purchasing criteria, lessons learned, and advice to student teams participating in the Challenge.”
Scrubbing the Skies: Biodiversity implications of land-intensive carbon dioxide removal | Institute for Responsible Carbon Removal “Decarbonization scenarios heavily rely on land-intensive carbon dioxide removal (CDR) to achieve ambitious climate targets. While carefully designed CDR programs can effectuate sustainable carbon removal, and in some cases environmental co-benefits, large-scale CDR reliance could also pose a critical risk to biodiversity conservation in some regions. Analysing scenario-based land allocation patterns for CDR allows us to scrutinize potential deployment implications and to suggest ways to foster both carbon removal and biodiversity protection.”
Canada’s $100M Bet on Carbon Removal | Na’im Merchant | The Climate Cycle “What we cover:-Why Na’im left global health for carbon removal-What $100M actually unlocks - and why a government buyer matters-The economic argument: how CDR saves Canada money on the path to net zero-Industrial integration: mining, steel, and forestry as CDR opportunities-Trough of disillusionment or normal growing pains?-The US pullback: genuine competitive opening for Canada, or missed opportunity?-What policy and capital levers need to be pulled to realize this gigatonne-scale potential.”
TLRS Podcast - Episode 4: Making Carbon Dioxide Removal a Reality (Haley McKey) | Lab Rats Education “In Episode 4 of The Lab Rats Podcast we dive into an in-depth interview with former US Department of Energy analyst and current fellow with the Kleinman Center for Energy Policy at UPENN, Haley McKey.Episode 4 explores Haley’s work in #ethical & #sustainable #carbondioxide removal CDR techniques and associated research projects. We talk about how state and federal policies impact the field, the importance of engagement and communication to address social justice and environmentalism priorities, and how Massachusetts is trying to capitalize on the heat that data centers produce to reduce carbon at a lower cost. Trust me, you won’t want to miss this conversation.”
OA Alliance Webinar: Ocean Acidification and Marine Carbon Dioxide Removal February 18, 2026 | OA Alliance “Halting the ongoing release of Anthropogenic CO2 and other greenhouse gas emissions is the first and most important action needed to combat climate change and ocean acidification. Increasingly, governments are being asked to consider marine carbon dioxide removal (mCDR) strategies as part of broader CDR agendas and as a direct response to ocean acidification.To support government members of the OA Alliance who are navigating this nexus, the OA Alliance will release and discuss materials to help them understand the links between mCDR and OA— particularly, the state of the science, as well as how particular actions might achieve specific desired goals.”
Webinar Recording: Examining MRV practices across five OAE projects | Carbon to Sea“On March 31st, 2026, Carbon to Sea hosted this “Examining MRV Practices Across Five OAE Projects” webinar featuring leading scientists from the five projects included in our recently published MRV Database. The virtual event focuses on introducing the database and its features, as well as each project’s monitoring approach, rationale, trade-offs, challenges, and future plans.The Interactive MRV Database is designed to be a living tool that will be updated approximately once a year as new projects launch and practices evolve. Beyond updates, we encourage projects to submit information for consideration and inclusion. We aim to better understand and document emerging practices, especially around measurement strategies, sensor development, and the use of this dataset to benchmark and improve MRV.”
Weekly Carbon Removal Updates from 30 March - 05 April 2026 | Carbon Removal Updates BulletinDEADLINESFollow us on:Twitter | Bluesky | LinkedIn | YouTube | Substack | Podcast 1 | Podcast 2
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