CARBON REMOVAL WEEKLY SUMMARY (02 JUNE - 08 JUNE 2025)—WEEK#23
Links to recent scientific papers, web posts, upcoming events, job opportunities, podcasts, and event recordings, etc. on Carbon Dioxide Removal Technology
TABLE OF CONTENTS
1. This Week’s Top CDR Highlights
2. Commercial News
3. Research Papers
4. Web Posts
5. Thesis
6. Reports
7. Upcoming Events
8. Job Opportunities
9. Podcasts
10. YouTube Videos
11. Deadlines
Note: 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 HIGHLIGHTS
RESEARCH PAPER: A new study has revealed for the first time that ancient carbon, stored in landscapes for thousands of years or more, can find its way back to the atmosphere as CO₂ is released from the surfaces of rivers at a rate of 1.2BtCO2/yr equivalent in scale to the total land carbon uptake globally via photosynthesis. Read the summary of the paper here.
ACT: U.S. Senators Sheldon Whitehouse and Adam Schiff introduced the Wildfire Reduction and Carbon Removal Act 2025, offering $180/t tax credits for BiCRS projects locking up CO₂ for 1,000+ years—or $60/t for 100+ years.
COALITION: Denmark, Finland, Iceland, Norway, and Sweden launched the Nordic Carbon Removal Association. They also released a blueprint showing the Nordics could remove 85–160 MtCO₂ annually by 2050, meeting up to 60% of Europe’s demand and generating €9–17 billion in GDP and 148,000 jobs.
RESOURCE: [C]Worthy and CarbonPlan released the first Direct Ocean Removal Efficiency Map, charting where and when CO₂ can be effectively pulled from the sea—and how storage losses bite into total impact.
CALL FOR CONSULTATION: UNFCCC seeks input on how removal and emission reduction rules overlap under Article 6.4. crediting mechanism (Deadline 23 June).
TRACKER FOR NBS: CDR.fyi launched nbs.CDR.fyi, a public tracker for forest-based carbon credit commitments.
Read on to unpack more updates:
COMMERCIAL NEWS
Aircapture raised $50M in Series A funding to scale its California-based DAC tech (Carbon Herald)
UK fintech Wise pledged £500K to support nature-based and hybrid CDR in Latin America and Asia-Pacific (Carbon Pulse)
Holcim launched €400M OLYMPUS project in Greece that will capture 1Mt CO₂/year and produce 2Mt low-carbon cement by 2029 (Clean The Sky)
Kelp Blue, atdepth MRV Inc., and Kelp Forest Foundation announced the completion of an independent quantification of CDR from kelp farming (atdepth)
Restord delivered 8.6t CO₂ removals under a UK biochar deal with Bennetts Associates, certified via CapChar (Restord)
Monroe Sequestration Partners and Southern Energy signed an agreement to enable permanent CO₂ storage (EIN Presswire)
Skyrenu closed its pre-seed round with support from Quebec’s Impulsion PME program for DAC development (Skyrenu)
RC Technologies launched a new financial rebate program to boost CDR adoption by businesses (PR)
ClimeFi has teamed up with XPRIZE to bring CDR buyers exclusive access to a structured portfolio featuring the Winners and Finalists of the US$100 million XPRIZE CDR competition (ClimeFi)
RESEARCH PAPERS
The CDR potential of olivine-based enhanced rock weathering in marine systems: a case study for the coastal zone of France
Authors: Luna J.J. Geerts, Astrid Hylén and Filip J.R. Meysman
Synopsis: Marine enhanced rock weathering (mERW) was modeled as a carbon removal method in France’s coastal zone by simulating dunite addition across three sediment types. CO₂ sequestration averaged 0.32 kg CO₂/m²/kg dunite over 100 years, with coarse, mobile sediments showing the best performance. Up to 23% of France’s territorial seas are suitable for deployment, offering a 210 Mt CO₂ removal potential. While not sufficient alone, mERW could support broader CDR efforts. Key uncertainties remain.
CarbonFiberStone: A new carbon negative and cost-effective alternative to conventional building materials by fusing three different CDR technologies
Authors: Friedrich J. Bohn, Uwe Arnold, Ömer Bucak, Erik Frank, Leonie Schrafstetter and Kolja Kuse
Synopsis: This study presents CarbonFiberStone (CFS), a lightweight, bio-based construction material combining carbon fiber fabric and stone slabs. Life Cycle and Techno-Economic Assessments show CFS walls can achieve net carbon negativity (-56.86 to 65.32 kg CO₂eq/m²), sequestering up to 0.15 t CO₂/m² at similar costs to concrete. With added biochar insulation and stone powder used for enhanced weathering, CFS offers a sustainable path toward climate-friendly construction.
Enhanced continental weathering drove a transient oxygenation event during the largest Ediacaran carbon isotope excursion
Authors: He Sun, Yilin Xiao, Yangyang Wang, Fengtai Tong, Hai-Ou Gu, Can Ge, Fangyue Wang, et al.
Synopsis: This study links the Shuram Excursion (SE), a major Ediacaran carbon isotope shift, to intensified continental weathering. Lithium isotope data from marine carbonates reveal a negative excursion, supporting enhanced weathering—not diagenesis—as the driver. Modeling shows this weathering pulse likely boosted ocean nutrients and primary production, triggering transient oxygenation and explaining the SE’s carbon isotope signal.
Old carbon routed from land to the atmosphere by global river systems
Authors: Joshua F. Dean, Gemma Coxon, Yanchen Zheng, Jack Bishop, Mark H. Garnett, David Bastviken, et al.
Synopsis: New global data show that 59 ± 17% of CO₂ released from rivers comes from millennia-old carbon, not just recent biomass. This aged carbon—sourced from soils, sediments, and rock—adds up to ~1.2 ± 0.3 Pg C/year, rivaling terrestrial net ecosystem exchange. The findings challenge current carbon cycle models by revealing significant loss from long-term land carbon stores, urging a reevaluation of how anthropogenic carbon is tracked in global budgets.
Development of the ecological activity index as an integrative ecosystem assessment and monitoring asset for ocean alkalinity enhancement
Authors: Lukas Marx, Jennie Rheuban, Daniel McCorkle, Christopher Murray, et al.
Synopsis: Ocean alkalinity enhancement (OAE) is a marine carbon removal method that boosts CO₂ sequestration by adding alkaline materials to seawater. This study introduces the Ecological Activity Index (EAI), a tool using public data on trophic levels and fishing to identify optimal sites and times for OAE with minimal ecological impact. By incorporating higher trophic levels and ocean uses, the EAI supports baseline risk assessments and guides environmental monitoring for OAE and other marine carbon removal approaches.
Competitive Sorption of H2O and CO2 in Clay Mineral Interlayers
Authors: Cliff T. Johnston, Timothy S. Zwier, Tuan A. Ho, Guangping Xu, Yifeng Wang, Susan B. Rempe, et al.
Synopsis: This study reports the first competitive CO₂–H₂O sorption isotherms on natural saponite clays exchanged with Na, K, and Cs at near-ambient CO₂ levels (1%). CO₂ uptake increased as humidity decreased and followed the order Cs > K > Na, inversely correlated with cation hydration energy. CO₂ sorption was highest under low RH and with weakly hydrated cations like Cs⁺. Results suggest CO₂ binds to weakly hydrated, partially hydrophobic interlayer sites, offering insights for low-humidity CO₂ capture strategies.
The Known Unknowns of Petrogenic Organic Carbon in Soils
Authors: Daniel L. Evans, Sebastian Doetterl, Nora Gallarotti, Eleanor Georgiadis, Sami Nabhan, Stephan H. Wartenweiler, et al.
Synopsis: Current soil carbon models overlook petrogenic organic carbon (OCpetro) from bedrock, focusing only on biospheric sources like plant decay. This omission may lead to overestimated biospheric carbon stocks and turnover times. The authors call for cross-disciplinary research to explore OCpetro's transport, stability, role in microbial activity, and response to land use. Including OCpetro in models is vital for accurate carbon cycle assessments and improved soil carbon management strategies.
A taxonomy of policies to support geological carbon dioxide removal
Authors: Johanna Arlinghaus, Siyu Feng, Joseph Stemmler, Samuel, Fankhauser, and Stephen M. Smith
Synopsis: This study develops a taxonomy to categorize and evaluate policies supporting geological CDR, assessing their stringency, efficiency, feasibility, strategic fit, and trade-offs. It emphasizes the importance of policy sequencing aligned with technology readiness and highlights examples from the EU, UK, and US. The authors advocate for dynamic, mandatory policy bundles that balance stable signals with flexibility and budget constraints to effectively advance CDR toward net zero goals.
Regionally-Dependent Arctic Sea Ice Recovery to CO2 Removal
Authors: M. Inês Cajada, Seok-Woo Son, Jaeyoung Hwang, Hyo-Seok Park, Soon-Il An
Synopsis: Arctic sea ice area (SIA) can recover after CO₂ removal, but the process is slow and uneven. A model experiment shows that while Arctic SIA declines rapidly with rising CO₂, its recovery after CO₂ reduction takes over 300 years. Central Arctic ice recovers slowly due to delayed ocean cooling and increased atmospheric heat, while the North Atlantic sees faster recovery linked to weakened ocean heat transport and delayed AMOC rebound. These regional differences may influence mid-latitude climate patterns.
Enhanced weathering of kimberlite residues in a field experiment: Implications for carbon removal quantification and mine waste valorization
Authors: Zivi R Schaffer, Kwon RausisIan, Ian M Power, Carlos Paulo
Synopsis: Field experiments in Ontario tested kimberlite residues from diamond mining as ERW material for CDR. Applying 20–40 kg/m² increased dissolved inorganic carbon in soil porewaters, indicating CO2 solubility trapping. Over 3 years, CDR rates reached 1.4 t CO2/ha, mainly from carbonate (~75%) and silicate (~25%) weathering. CO2 flux and soil inorganic carbon measurements were unreliable due to respiration and soil variability. This study supports repurposing mine wastes like kimberlite and basalt fines for scalable ERW and improved CDR monitoring.
Exploring the Use of Treated Water in Water Reclamation Facilities for Carbon Dioxide Capture and Sequestration
Authors: Nakyeong YunRuggero Rossi
Synopsis: An electrochemical cell captured inorganic carbon from treated wastewater effluent, converting bicarbonate to CO₂ gas and solid carbonates with over 57% efficiency. Optimized conditions reduced energy use to 3.4 kWh/kg CO₂, competitive with ocean and atmospheric CO₂ capture technologies. Operating continuously for 55 hours showed stable performance. This method offers a promising end-of-pipe solution for decarbonizing water treatment facilities and reducing greenhouse gas emissions when powered by renewable energy.
GIS-based multicriteria land suitability assessment for nature-based solutions for the enhancement of carbon sequestration in Emilia-Romagna, Italy
Authors: Andrea Zaniboni, Berit Balfors, Zahra Kalantari, Jessica Page, Patrizia Tassinari, Daniele Torreggiani
Synopsis: A GIS-based multicriteria decision analysis was used to assess land suitability for nature-based solutions (NbS) to boost carbon sequestration in Emilia-Romagna, Italy. The study mapped optimal sites for street trees, green spaces, and buffer strips across urban, peri-urban, and agricultural zones. Results highlight high-suitability areas near cities and coastlines, offering guidance for policymakers to maximize environmental benefits. Model robustness and carbon potential were also evaluated.
Transforming Carbon Dioxide into Rocks!? Experiments for Understanding Carbon Dioxide Removal through Chemical Weathering
Authors: Philipp Spitzer
Synopsis: his paper outlines safe, hands-on classroom experiments to teach carbon dioxide removal via chemical weathering. Using simple tools like PET bottles, students react CO₂ with basalt to form bicarbonate. The activities demonstrate CO₂ solubility, pH shifts, and real-world carbon capture, enhancing climate literacy in chemistry education.
Nature-based climate solutions can help mitigate the radiative forcing that follows deforestation
Authors: Grant Falvo & G. Philip Robertson
Synopsis: Historical deforestation in the U.S. Upper Midwest caused net warming of 1626 ± 44 µW/m², driven by a 76% loss in ecosystem carbon, reduced soil methane uptake, and increased nitrous oxide emissions. Increased albedo offset 24% of this warming. Nature-based solutions showed climate benefits: conservation agriculture (-39 to -76 µW/m²), short/medium forestry rotations (-296 to -881 µW/m²), and natural forest regeneration providing the greatest mitigation (-1555 µW/m²) over 100 years.
Cost of cooling: The value of reversible carbon storage in a zero-emissions world
Authors: Allegra Mayer, Jerome Dumortier, Zeke Hausfather, Jennifer Pett-Ridge, Eric Slessarev
Synopsis: This study compares temporary (e.g., soil-based) and permanent (e.g., geological) CDR, using cover crops as a case. Simulations show that maintaining a "patchwork" of temporary CDR can reduce warming but depends on long-term stability. Replacing temporary with permanent CDR later may be more cost-effective than relying solely on either. However, this bridge approach is risky if institutional support falters, highlighting the need for robust commitments to maintain temporary efforts.
WEB POSTS
U.S. Senators introduced a bill offering tax credits for biomass-based carbon removal from wildfire prevention (EPW Senate)
Isometric launched the Certify Emission Factor Library to simplify emissions data sourcing (Isometric)
[C]Worthy and CarbonPlan launched an interactive tool for exploring the efficiency of direct ocean removal (CarbonPlan)
Five Nordic countries launched the Nordic Carbon Removal Association (Nordic Carbon)
Carbon removal and the path back to 1.5°C (Carbon Pulse)
Carbon capture is struggling just as big projects start (C&en)
The science behind a leading carbon removal solution comes from St. Louis (St. Louis)
Think tank recommends integrating BECCS in EU ETS, with environmental safeguards (Carbon Pulse)
CDR.fyi launched nbs.CDR.fyi, a public tracker for forest-based carbon credit commitments (CDR.fyi)
Bury it, don’t burn it: turning biomass waste into a carbon solution (Physics World)
A Joint Position Statement on Carbon Dioxide Removal in SBTi’s Draft Corporate Net-Zero Standard (RMI)
Direct Air Capture shifts from hype to reality as race for scale and survival begins (Carbon Pulse)
Can kelp forests help tackle climate change? (The Conversation)
Carbon removals sector still on the up, but market anxious amid "crisis narrative" (Carbon Pulse)
A Roadmap for Revamping Forest Carbon Credit Protocols (Yale)
Sustainability performance of ERW in Brazil is exceptional (InPlanet)
Climate Impact Partners Presses SBTi for Net-Zero Standard That Enables Scalable Corporate Action (ESG News)
Businesses should plant trees while deciding which CO2 removal tech to bet on (Business Green)
Buyers have duty of care in carbon removal purchases, says VC (Carbon Pulse)
Storing more carbon in the ocean: The wild gamble of marine geoengineering (Le Monde)
European Ocean Pact establishes useful framework, EU policy must now step in to advance marine CDR (Carbon Gap)
Deep Sky's outgoing CEO explains why he believes in the future of carbon removal (CBC)
Prosecutors Challenge $180M Amazon Carbon Credit Deal In Brazil (Carbon Herald)
Woody biomass burial (Illuminem)
How smart buyers are winning at CDR procurement (LinkedIn)
An Unintentional Iron Fertilization Experiment (Marine Technology)
CO2 Lock develops 'natural process' for sequestering carbon (Sustainable Biz)
Sustainable Cement: Transforming Construction for a Net-Zero Future (Medium)
New Tech Turns Manure Into Fertilizer While Capturing Carbon (Triple Pundit)
Tera, a Kenyan climate-tech firm, became the first African developer validated on the Riverse registry (Biochar Today)
Sweden To Potentially Extend Deadlines For CO2 Storage In Its Reverse Auction BECCS Call (Carbon Herald)
Klimate’s Carbon Asset Manager (CAM): the portfolio software for a tech-enabled net zero (Klimate)
Verde and Ergon signed MOU to Advance Commercialization of Low-Carbon Road Materials (Stock Titan)
How Marine Carbon Removal Is Governed in the High Seas (World Resources Institute)
Digging into the Soil Microbiome (Science & Technology Review)
Climate stability will require carbon removal on a large scale — are the existing methods up to the task? (ABC)
THESIS
Accelerating durable carbon dioxide removal deployment
Authors: Raiskila, Roosa
Synopsis: This thesis explores ways to commercialize BECCS in Europe, focusing on investment challenges, especially in Finland. It examines integrating durable CDR into the EU ETS, creating a European Carbon Central Bank, linking voluntary carbon markets with subsidies, and quota obligations. Using interviews and literature, it highlights regulatory gaps and recommends embedding CDR in EU ETS and establishing a Carbon Bank to boost market confidence and accelerate BECCS deployment.
REPORTS
Giant Kelp: A Validated Marine Carbon Dioxide Removal Pathway (atdepth)
Negative Emissions Geoengineering Technologies Market 2025: Rapid Growth Driven by Direct Air Capture & Policy Incentives (Metranca)
Regulation of Sargassum Removal and Sinking in Florida (Sabin Center for Climate Change Law)
Principles for responsible and effective marine carbon dioxide removal development and governance (High Level Panel for a Sustainable Ocean Economy)
Carbon Removal Equipment & Suppliers Guide - South Africa 2025 (Biochar South Africa & BiocharIQ)
The Nordics as Europe’s carbon removal hub (NCRA)
A Comprehensive Guide to Carbon Drawdown Technologies (University of Oxford)
UPCOMING EVENTS
This is CDR: Brazil - ERW Game Changer by The OpenAir Collective | 10 June 2025 | Online
Progress, Potentials & Pathways of Biochar in Europe by Biochar Summit 2025 | 10-11 June 2025 | Brussels, Belgium
(NEW) Evidence of Large Knowledge Spillovers from Carbon Removal Research by UPTAKE | 11 June 2025 | Online
Negative Emissions Summit 2025 | 12 June 2025 | Brussels
(NEW) Mining CDR: Inside the world’s first protocol by Isometric | 12 June 2025 | Online
(NEW) Advancing Marine Carbon Dioxide Removal Innovation by Ocean Visions | 12 June 2025 | Online
Introducing the Community Carbon Removal Purchasing Challenge by The OpenAir Collective | 17 June 2025 | Online
A taxonomy of policies to support carbon dioxide removal by CO2RE hub | 18 June 2025 | Online
Shaping the Future of CCUS and Carbon Removal – Industry Insights & Innovations by Worley | 18 June 2025 | Online
The latest CDR insights your business can't miss by Sylvera | 23 June 2025 | London
Carbon Removal Summit: Business Value in a Shifting LandscapUKby CUR8 | 23 June 2025 | UK
(NEW) Exploring Canada’s Carbon Removal Future: A Symposium by CanCO2Re | 23 June 2025 | Canada
Scaling CDR Summit by Isometric | 24 June 2025 | London
Buy in, Stand out: Your climate action starts with carbon removal by Carbon Removal Canada | 24 June 2025 | Ontario
Cloverly & BeZero Project Developer Happy Hour by Cloverly & BeZero Carbon | 24 June 2025 | London, England
CDR in Fintech: Exclusive insights from a global Fintech carbon removal buyer | 24 June 2025 | London
(NEW) Opna x Wise: Exclusive insights from a global technology company and carbon removal buyer by Opna | 24 June 2025 | London, England
(NEW) CDR Happy Hour by CUR8 Events | 25 June 2025 | London, England
Carbon You Can Count On: Science-Backed Credits for Nature & People. A LCAW event by Revalue and Cloverly | 25 June 2025 | London, England
WIC x Opna: Building Climate Resilience and Community with Carbon Removal by Women in Carbon & Rachael O'Brien | 25 June 2025 | London, UK
Carbon Clean-up Camp | 25 June 2025
CDR Leadership Forum—An evening of conversations that shape the future of carbon removal by Supercritical | 25 June 2025 | London
LAC Soil Carbon 2025 | 25-28 June 2025 | Reo de Janeiro (Brazil)
ERW + Biochar Fireside - London Climate Action Week by Lydia Chen | 26 June 2025
Circle of CDR – Financial institutions in a trillion dollar carbon market by Phlair | 26 June 2025 | Ismaning, Bayern
(NEW) SHOWDOWN: Reductions vs Removal Credits by CDR Policy Scoop | 30 June 2025 | Online
2nd Advancing Marine CDR Summit | 08 July 2025 | Boston
5th Brazilian Congress of Remineralizers Conference | 8-11 July 2025 | Brazil
2025 Carbon Removal Justice Fellows Program by The National Wildlife Federation (“NWF”) and the Institute for Responsible Carbon Removal (“the Institute”) at American University | 14-25 July 2025
(NEW) Inaugural Oxford Symposium on the Carbon Removal Budget | 31 July 2025 | United Kingdom
Energy, Fuels & Decarbonisation Expo (EFD Expo) by NEC | 17-18 September 2025 | UK
The UK GGR Event by CO2RE Hub | 29 September - 01 October 2025 | United Kingdom
Climate Technology Show by Excel London | 01-02 October 2025 | UK
India's Carbon Removal Summit by Alt Carbon | 05 October 2025 | Bengaluru, India
CDR Summit by Carbon Unbound | 21 & 22 October 2025 | London
Enhanced weathering with agriculture for atmospheric carbon dioxide removal by The Royal Society | 17-18 November 2025 | Online
We 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.
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JOB OPPORTUNITIES
Postdoctoral researcher modeling and assessing terrestrial Carbon Dioxide Removal approaches at LMU | Deadline: 23 June 2025
"The postdoctoral researcher will conduct innovative research on land-based CDR such as afforestation, forestry and bioenergy. The postdoc will assess these along with ocean-based methods regarding their potentials to take up CO2 and side-effects on climate and ecosystem functioning."
Marine Carbon Dioxide Removal Studies Researcher at Woods Hole Oceanographic Institution | Falmouth, MA
"We are seeking a part-time, short-term hire (3 months effort spread over 3-6 months) to assist the ExOIS PO in the coordination and preparation of materials required for the application of a permit for ocean iron fertilization (OIF) field research in the high seas."
Development Associate / Manager at Capture6 | London / UK-based
"At Capture6, we are developing rapidly scalable carbon removal and decarbonization solutions and creating environmental benefits to accelerate the transition to a decarbonized global economy."
Senior Manager, Carbon Sales at Indigo
"Indigo is leveraging the most advanced science and technology, we deliver proven ag sustainability programs and biological products at scale."
Internship: Study of degradation mechanism of sorbent materials for DAC at Skytree | Amsterdam, Noord-Holland, Netherlands
"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."
Director of Research & Development at Travertine | Boulder, CO
"Travertine is a Climate Tech start-up based in Boulder, CO, that is rapidly scaling a technology for low-waste, carbon-negative production of critical elements, focusing on phosphoric acid production for our go-to-market application."
Director of Policy- Tech at Carbon180 | Washington, District of Columbia, United States
"Carbon180 is a climate NGO with a vision to remove legacy carbon emissions from the atmosphere and create a livable climate in which current and future generations can thrive."
Department Lead Operations & Production at ecoLocked | Bernau, Brandenburg, Germany
"ecoLocked is a growing climate technology startup dedicated to carbon removal and pioneering sustainable materials."
Carbon Program Manager - Environment, Policy and Social Initiatives at Apple | Cupertino, California, United States
"As the Carbon Removal Program Manager on Apple's Environment, Policy and Social Initiatives team, you will work on the team driving development and implementation of projects and partnerships which remove otherwise unavoidable emissions from Apple’s scope 1 and 3 footprint."
Content Marketing Manager at BeZero Carbon
"BeZero Carbon is a global carbon ratings agency. We equip world-leading organisations with the knowledge, tools and confidence to make better climate decisions."
Forest Technician, Seasonal at Chestnut Carbon | Eureka, CA
"Chestnut Carbon, a nature-based carbon removal developer, operates high-quality U.S. forestry projects that meet the most rigorous 3rd party verification criteria."
Looking for your dream job in CDR? There are 642 jobs available *right now*: check them all out at:
PODCASTS
Reflections from the Carbon to Sea 2025 Annual Convening | Plan Sea Podacst
"In this edition of Plan Sea, host Anna Madlener is joined by Na’im Merchant, host of The Carbon Curve podcast and Executive Director of Carbon Removal Canada, for a special co-hosted episode of the two podcasts. Recorded live at the Carbon to Sea 2025 Annual Convening, Anna and Na’im speak with Dr. Lennart Bach, Associate Professor and ocean alkalinity enhancement (OAE) scientist at the University of Tasmania, to share insights and key takeaways from this year’s event."
Exploring the State of CDR with Tank Chen | What goes up must come down
"In the latest episode of the podcast "What Goes Up Must Come Down," hosted by Klimate, we dive deep into the evolving landscape of carbon dioxide removal (CDR) with guest Tank Chen, co-founder and head of content and community at CDR.fyi. This episode unpacks the current state of the carbon removal market, explores the emerging CDR scene in Asia, and sheds light on the promising developments in the Nordic region."
Climate Innovation and Partnership with ARCA's Sean Lowrie | Deep Dives with DPI
"In this enlightening episode of Deep Dives with DPI, we welcome Sean Lowrie, Head of External Affairs for ARCA, one of DPI's associate members. Sean shares insights from his 30-year career in international development and his current work with ARCA, a climate technology company pioneering innovative ways to remove carbon dioxide from the atmosphere."
YOUTUBE VIDEOS
The role of biochar in a warming, post-USAID world with Dr. David Hughes | Biochar Life
"Dr. David Hughes serves as the Dorothy Foehr Huck and J. Lloyd Huck Chair in Global Food Security at Penn State University, where he also holds professorships in entomology and biology. As the founder of PlantVillage, a Penn State initiative, Dr. Hughes leads efforts to enhance global food security by integrating artificial intelligence, mobile technology, and community networks. PlantVillage empowers smallholder farmers across Africa, Asia, and the Americas to combat pests and adapt to climate change by leveraging AI-driven tools and youth-led ground networks.
Building upon this mission, Dr. Hughes established PlantVillage+, a private enterprise partially owned by Penn State. This venture aims to alleviate poverty and address climate change by offering paid services to farmers, corporations, and governments, while continuing to support public AI research. Notably, PlantVillage+ allocates 30% of its profits to workers and farmers, 10% to its charitable arm—the Village Youth Fund—and 5% to assist governments in accessing advanced technologies and AI solutions.”
Climeworks layoffs: What does it mean for carbon removal? | Tito - AirMiners
Who Will Buy? Forest Carbon at a Crossroads - Elizabeth Aldrich | This Week In Carbon
"The episode covers:
Why corporate buyers are pulling back—and what it means for project developers
-The real-world challenges of Article 6 implementation, from authorization bottlenecks to host country risk
-The growing importance of trust, safe harbor protections, and clarity for market actors
-The gap between ambition and financing on the ground
-Why data is powerful—but relationships are still at the heart of integrity
This is a grounded, field-informed conversation that cuts through the noise and focuses on what really matters for scaling high-integrity climate action."
Composting Biomass Waste for Carbon Removal with CO2 Capture | Remove and Reflect Podcast
"This episode discusses a recent paper that presents a techno-economic assessment of industrial composting of biomass waste combined with CO2 capture as a method for atmospheric carbon removal. The research investigates the feasibility and cost-effectiveness of this BiCRS (biomass carbon removal and storage) technology, utilizing experimental data from composting reactors to inform the analysis. It highlights the process's ability to generate a high concentration of biogenic CO2 for capture while preventing methane emissions and producing a valuable soil amendment. The study concludes that this approach holds potential as a viable BiCRS technology, particularly for wet organic waste, with costs sensitive to biomass feed rate and tipping fees."
Microbial Enhanced Weathering of Gran Canaria Lapilli | Remove and Reflect Podcast
"This episode covers a scientific paper that explores using microbial processes to accelerate the weathering of volcanic rocks, specifically Gran Canaria lapilli and lava basalt, for carbon dioxide removal (CDR). Researchers conducted experiments in flow-through columns with and without a mixed microbial culture, finding that inoculation significantly increased weathering rates and carbon sequestration in both rock types compared to abiotic controls. While lapilli showed faster weathering and more biomass, the lava basalt columns ultimately captured more inorganic carbon. The study concludes that utilizing microbially enhanced weathering systems with appropriate rock feedstocks holds potential as a viable CDR strategy."
Weekly Carbon Removal Updates from 02 June - 08 June 2025 | Carbon Removal Updates Bulletin
DEADLINES
Call for Consultations—Direct Air Capture and Geologic Sequestration in Saline Aquifer methodology by Absolute Climate is open for public review | Deadline: 12 June 2025
Student Writing Competition—Marine Carbon Dioxide Removal Law and Policy by Sea Grant Law Center | Deadline: 15 June 2025
Student Writing Competition: Marine Carbon Dioxide Removal Law and Policy | Submissions are due by 15 June 2025
Call for Consultations—UK govt launched a review of CDR tech (DAC, BECCS, etc.) for its 2050 net-zero plans | Respond by 20 June 2025
(NEW) Call for Proposals-Kumo issued a global RFP for debt financing of carbon projects | Deadline: June 20
Funding Opportunity—Carbon180 launched Making Waves, a regranting program offering $100K to marine CDR nonprofits | Apply by 20 June 2025
(NEW) Call for Consultation—UNFCCC seeks input on when Paris Article 6.4 removal rules apply to emissions cuts | Deadline: 23 June 2025
Isometric opened public consultation on a new Direct Ocean Capture & Storage CDR protocol | Deadline: 27 June 2025
(NEW) Call for Consultation—EU released draft rules for certifying carbon farming, permanent removals, and storage in products | Public comment open until 01 July 2025
Call for Consultation—EU Commission has opened consultation to assess potential reforms to the Emissions Trading System, with a focus on how CDR could be integrated to support the 2050 net-zero target | Deadline: 08 July 2025
Call for Consultations—Government of UK is seeking views on the implementation of the UK government’s principles for voluntary carbon and nature market integrity | Deadline to respond: 10 July 2025
Funding Opportunity—Emissions Reduction Alberta launched a $50M fund to support emissions-cutting tech, including BECCS and CDR | Proposals due 23 July 2025
Climate Intervention Environmental Impact Fund announced $75,000 grants towards environmental impact analysis for climate restoration projects | Deadline to apply: 01 August 2025
Funding Opportunity—Horizon Europe launched funding calls for Ocean Alkalinity Enhancement | Deadline: 16 September 2025
The EU LIFE programme has launched a €28M funding call for Climate Change Mitigation projects, including CDR | Apply by 23 September 2025
Call for Manuscripts—Soil microbiome in carbon sequestration | Submission deadline: 29 October 2025
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