CARBON REMOVAL WEEKLY SUMMARY (26 MAY - 01 JUNE 2025)—WEEK#22
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. Theses
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 recent study introduced a new industrial composting method that captures CO₂, prevents methane emissions, and produces soil amendments. The levelized cost of CO₂ removal by this method is estimated at $102/tCO₂, and a compost facility with a 45,990 t/yr biomass feed rate could remove 26,500 tCO₂/yr.
CALL FOR CONSULTATION: Isometric opened public consultation on a new Direct Ocean Capture & Storage CDR protocol (Deadline: June 27).
DOCUMENTARY: Exomad Green and Carbonfuture released The Power of Biochar, a documentary showing how forest waste in Bolivia’s Amazon is turned into biochar to capture carbon, improve soil, and help indigenous communities.
JOB OPPORTUNITY: The Department of Earth Sciences, University of Oxford, seeks to appoint a full-time Postdoctoral Research Assistant in Security of Carbon Dioxide Drawdown During Enhanced Rock Weathering (Deadline: June 12)
RESOURCE: Cascade Climate launched ERW Data Quarry—a new data-sharing platform for enhanced rock weathering projects.
FRAMEWORK: Ocean Visions released a new environmental impact assessment framework for marine CDR research, aiming to guide safe and effective ocean interventions.
FUNDING BLOW: The U.S. DOE cut $3.7B in clean energy grants, hitting key carbon capture firms. Cement decarbonization startups took major hits—Sublime lost $86.9M, Heidelberg $500M, and Brimstone $189M—stalling progress in low-carbon tech.
Read on to unpack more updates:
COMMERCIAL NEWS
Gresham House raised £500M to expand UK forestry and carbon removal, targeting 4.7M tonnes of CO₂ via nature-based credits (ESG News)
Biochar firm TOWING raised ~$12M in Series B to scale its high-performance carbon removal tech (PR Times)
Heracles launched a €380M CCUS project at its Greek cement plant, aiming to capture 1Mt CO₂/yr and hit net-zero by 2029 (Balkan Green Energy News)
Microsoft signed a multi-year deal to buy up to 622,500 tons of low-carbon cement from Sublime Systems (Carbon Herald)
Microsoft received 60,000 soil carbon credits from Indigo Ag—its largest delivery yet—toward 2030 carbon-negative goals (PR Newswire)
Japan launched offshore blue carbon R&D to boost ocean CO₂ capture and support national net-zero goals (ESG News)
Australia’s FASERA earned its first 586 carbon removal credits for biomass burial under Puro.earth (Carbon Pulse)
Perennial and rTek launched a 10-year deal to monitor, report, and verify global grassland regeneration (Business Wire)
Gevo agreed to buy $637K in CO2 from South 8 Energy as part of its North Dakota carbon capture and ethanol acquisition (Carbon Pulse)
MOL became Japan’s first shipping firm to retire tech-based CDR credits, acquiring 2,000 tons from Bolivia’s Exomad Green biochar project via NextGen (MOL)
Suntory and TOWING launched a biochar pilot using beverage byproducts to boost fertilizer efficiency and cut emissions (Biochar Today)
RESEARCH PAPERS
Atmospheric carbon dioxide removal using layers of lime
Authors: Olivia Hawrot, Phil Renforth
Synopsis: Metal oxides like lime (CaO, Ca(OH)₂) and MgO react with atmospheric CO₂ to form stable carbonates, aiding carbon removal. This study tested carbonation rates of lime at various layer thicknesses (2.5–50 mm) under ambient conditions. Thin layers (<10 mm), reapplied every 5–10 days, achieved the highest CO₂ removal (>2 t CO₂/ha/day). However, due to high lime costs, longer application intervals may be more cost-effective than maximizing removal speed.
Marginal cost of carbon sequestration using straw-based biochar in Great Britain—Preprint
Authors: Yuzhou Tang, Paul Wilson, Tim Cockerill
Synopsis: Straw-based biochar could contribute 0.6%–2.1% of the UK’s 2050 carbon removal target at costs below £75/tCO₂e. Using a spatial model with life cycle and economic analysis, the study highlights cost drivers like feedstock price, by-product value, and biochar yield. It identifies optimal strategies for scaling biochar from UK straw, while addressing feasibility concerns around cost, land use, and infrastructure for effective climate mitigation.
Eutrophication-induced dinoflagellate succession contributes to marine carbon sequestration through refractory dissolved organic matter accumulation
Authors: Fu-Tao Fang, Zhuo-Yi Zhu, Yuan-Bi Yi, Ding He, Hong-Yan Bao, En-Ren Zhang, Cheng-Xu Zhou
Synopsis: Coastal eutrophication shifts phytoplankton dominance from diatoms to dinoflagellates, impacting carbon cycling. This study found that dinoflagellate detritus produces more refractory dissolved organic carbon (DOC) than diatoms during 70-day dark incubations. Dinoflagellate-derived DOC is less degradable, richer in stable compounds, and forms more refractory molecules, suggesting that dinoflagellate blooms may enhance coastal carbon sequestration by increasing long-lived DOC.
Techno-Economic Assessment of Atmospheric Carbon Removal via Industrial Composting of Biomass Waste with CO2 Capture
Authors: Ethan Woods, Nicolas Clauser, Jesse Daystar, William Joe Sagues
Synopsis: This study developed a novel industrial composting process for biomass waste that enables CO₂ capture while avoiding methane emissions and producing soil amendments. Based on 0.5 L and 25 L bioreactor data, CO₂ removal costs are estimated at $102/tCO₂. A 45,990 t/year facility could remove 26,500 tCO₂/year. Key cost drivers include biomass feed rate and tipping fee. This BiCRS approach shows techno-economic promise and merits further study.
Investigation of microwave-assisted regeneration of zeolite 13X for efficient direct air CO2 capture: a comparison with conventional heating method
Authors: Paka-on Amornsin, Pacharapol Nokpho, Xiaolin Wang, Pornpote Piumsomboon & Benjapon Chalermsinsuwan
Synopsis: This study compares microwave-assisted and conventional heating for regenerating zeolite 13X in direct air CO₂ capture. Microwave heating at 300 W for 10 min (350 °C) achieved 95.26% regeneration efficiency with minimal capacity loss, outperforming conventional heating (93.90% efficiency at 30 min) by reducing energy use tenfold (0.06 vs. 0.62 kWh). Microwave regeneration's direct dielectric heating enables faster, more energy-efficient CO₂ desorption, showing promise for scalable, low-energy direct air capture.
Investigation of different caprock morphologies on CO2 leakage and solubility trapping mechanism
Authors: Pradeep Reddy Punnam, Venkata Sai Teja Tatavarthi & Vikranth Kumar Surasani
Synopsis: This study examines how caprock morphology affects CO₂ plume migration, solubility trapping, and leakage risks in geological sequestration using reactive transport simulations. Three synthetic domains with different structures reveal that cracks and anticlines reduce sweeping efficiency and increase leakage. The Deccan traps’ stairstep morphology showed 30% less leakage by enhancing lateral plume migration and trapping despite higher CO₂ injection. Results underscore geology’s key role in optimizing safe, long-term CO₂ storage.
Microbial dissolution of Gran Canaria lapilli in small-scale flow through columns: carbon dioxide removal potential
Authors: Thomas Corbett, Elisabeth Odelius, Tora Uebel, Tove Jonsson, Abhijeet Singh, Sara Vicca, et al.
Synopsis: This study assessed Gran Canaria lapilli and commercial lava basalt as feedstocks for bio-weathering-driven carbon dioxide removal, using flow-through columns inoculated with four microbes. Biotic weathering rates were significantly higher than abiotic controls, with lapilli weathering faster and supporting more biomass. However, lava basalt sequestered more carbon overall. Both materials show potential for carbon removal through microbial-enhanced weathering systems.
Exploring Energy-from-Waste (EfW) with CCS as a strategic carbon removal pathway in Saudi Arabia
Authors: Hasan Muslemani , Naser Odeh
Synopsis: This paper strategically assesses Energy-from-Waste (EfW) BECCS within Saudi Arabia’s Circular Carbon Economy and waste goals. It reviews global evidence, techno-economic data of existing/planned projects, and analyzes Saudi municipal solid waste availability and composition. The study highlights EfW BECCS as a scalable mid-term carbon removal option aligned with environmental and CCE targets, identifying barriers, challenges, and enabling business models critical for successful deployment in the Kingdom.
Limits to CDR accounting: The role of carbon fluxes, time(liness) and storage
Authors: Steffen Swoboda and Andreas Oschlies
Synopsis: To meet the Paris Agreement goals of limiting warming to below 2 °C—ideally 1.5 °C—global CO₂ emissions must fall to net-zero by 2050. Yet, even the most ambitious reduction scenarios require additional carbon dioxide removal to stay within these limits.
Space-based assessment of changes in terrestrial carbon sequestration with special reference to the proposed Silver Line railway project (K-rail) corridor in Kerala, India
Authors: Shilpa Sudhi, Sumith Satheendran
Synopsis: The Silver Line/K-Rail project in Kerala threatens trees outside forests, impacting terrestrial carbon sequestration. This study used 2021 Sentinel-2 summer and winter images to analyze spatio-temporal changes in vegetation via NDVI and estimated carbon stock, biomass, and CO₂ using QGIS. Buffer zone analysis (10, 30, 500 m) revealed seasonal fluctuations and significant reductions in carbon sequestration and greenery along the K-Rail corridor post-project completion.
Degradable film mulching increases soil carbon sequestration in major Chinese dryland agroecosystems
Authors: Zihan Liu, Chenxu Zhao, Nanhai Zhang, Jing Wang, Zhaoyang Li, Yves Uwiragiye, et al.
Synopsis: Plastic film mulching (PM) boosts crop yields in drylands but harms the environment due to its non-degradability. Degradable mulching (DM) is a promising alternative. Studies show DM increases soil organic carbon (SOC) storage, while PM reduces it, likely because DM enhances microbial carbon use efficiency. By 2100, DM could reduce SOC decomposition in China’s drylands by 9.0 ± 1.0 Mg ha⁻¹ year⁻¹, aiding carbon sequestration and climate mitigation.
The Influence of Sediment Properties on CO2 Hydrate Sequestration in Sub-Seafloor Saline Sediments: A Review of Formation and Stability
Authors: Jennifer S. Moshi, Chaohua Guo, Fravian M. Marobo, Orgenes S. Moshi
Synopsis: CO₂ hydrate storage in subseafloor saline sediments holds promise, but harsh conditions reduce long-term efficiency. This review highlights how sediment surface modifications—like nanotech, chemical treatments, and thermal methods—enhance hydrate formation and stability. Additives such as surfactants and polymers further improve storage by altering wettability and reducing induction time. The study synthesizes data to guide CO₂ storage strategies for climate mitigation.
A robust asymptotic control model to analyze climate policy with CDR options
Authors: Babonneau, Frédéric, Haurie, Alain, Vielle, Marc
Synopsis: In this study, a three-region optimal economic growth model is developed to simulate the global energy transition to net-zero emissions with CDR technologies. It features CES production functions, a cumulative emissions budget, and international emissions trading. Using optimal control theory, the model analyzes scenarios along steady-state (“turnpike”) paths and optimal transitions. Despite its simplicity, it aligns with IPCC climate policy goals and offers a foundation for future climate-economic modeling.
Carbon Drawdown Initiative 2024 XXL Lysimeter Study - Preprint
Authors: Dirk Paessler, Jens Hammes, Ralf Steffens, Ingrid Smet, Anna Stöckel
Synopsis: In April 2022, the Carbon Drawdown Initiative launched the XXL-lysimeter project in Fürth to test enhanced weathering (EW) CO2 sequestration. Twenty lysimeters received varying basalt doses (0–400 t/ha). Gas samples showed an early EW signal with up to 32% CO2 reduction and isotope shifts. Fine basalt weathered slightly faster. Solute data mostly reflected irrigation effects, except the mixed-200 lysimeter, which showed potential EW signals. A slight fertilizing effect appeared at 100 t/ha basalt.
WEB POSTS
How captured carbon dioxide could help mine carbon-negative nickel (New Scientists)
Why Direct Air Capture Won’t Replicate the Solar Revolution (Clean Technica)
The Near – Term Future Of Carbon Removal Is National – And Nordic (Carbon Herald)
Debunking Myths: The Critical Role of Direct Air Capture in Combating Climate Change (LinkedIn)
Scientists Are Spreading Rocks on Farm Fields to Fight Climate Change (Triple Pundit)
Europe’s next climate target may already have been agreed in Berlin (Euractive)
Deep Sky's outgoing CEO explains why he believes in the future of carbon removal (Yahoo News)
How one company plans to suck carbon right out of the air (and make money doing it) (CBC)
Scientists prep bold experiments to fight Arctic phenomenon with global implications: 'Dramatic changes' (TCD)
Marine carbon dioxide removal: diving in at the deep end (ClimeFi)
The policy lever that can make a difference for carbon removal (Carbon180)
Reflections from a day at a DAC facility (Carbon180)
Scaling Carbon Removal Through Many Pathways: Lessons From The XPRIZE Winners (Carbon Herald)
EU Carbon-Removal Rules Threaten Region’s Climate Targets (Bloomberg)
Bioengineered poplars to save the climate? (Infogm)
Residual Taps Top Climate Experts To Guide Ambitious Carbon Removal Push (Carbon Herald)
Scaling Carbon Removal: Vaulted’s Vision for Waste-Based Removals (Carbon Herald)
Energy Dept. Cancels $3.7 Billion for New Technologies to Lower Emissions (The New York Times)
Microsoft hits record CDR deals in 2024 amid emissions jump (Quantum Commodity Intelligence)
Ratings agencies' roles in carbon removal technologies growing; shaping demand, pricing (S&P Global)
The Climate Tech Investor Who Won’t Touch DAC (Heatmap)
Meta and Microsoft Secured Long-Term Carbon Credit Deals to Support Olympic Rainforest (Carbon Credits)
At this rate, carbon dioxide removal will never matter for the climate (New Scientists)
Turning the Tide on Carbon: How Planetary Is Advancing Ocean-Based Removal with Local Partners (Carbon Herald)
In Carbon We Trust (Climagination Substack)
Microsoft Faces Emissions Surge in Carbon Negative Goal (Web Pro News)
Revised methodologies under the EU Carbon Certification Removal Framework continue to lack integrity (Oko Institut)
Enabling better Enhanced Weathering data (Isometric)
Marine carbon dioxide removal: What it is and how it works (Carbon Direct)
Current Landscape of Carbon Dioxide Removal (CDR) in the Middle East (Global Climate Tech Watch)
Carbon Removal Is Struggling When It’s Needed Most (Bloomberg)
Karpture: A New Platform That Tracks Real-Time DAC Carbon Removal (Carbon Herald)
Verra And Hedera Foundation Team Up To Digitally Transform Carbon Markets (Carbon Herald)
Baker McKenzie cultivates carbon removal credit purchase agreement (iclg)
Coffee plantations in the forests of Rondônia sequester 2.3 times more carbon than they emit (Datagro)
Robotics for Carbon Dioxide Removal (Climate Drift)
THESES
Investigation of Hydrate-Free Condition During Carbon Dioxide Injection into Low-Temperature Water Zones for Locking Carbon Dioxide Safely
Author: Muhammad Towhidul Islam
Synopsis: This thesis examines CO₂ hydrate formation in porous media under dynamic flow, focusing on temperature and water salinity effects. Hydrate formation in fresh water requires higher pressure under flow than static conditions, with pressure ratios decreasing from 2.20 at 1°C to 1.96 at 3°C, indicating reduced hydrate formation at higher temperatures. In brine, salinity raises formation pressure to 690 psi at 3°C, hindering nucleation. Findings aid CO₂ sequestration design by addressing temperature, salinity, and flow impacts on hydrate control.
Evaluating Enhanced Rock Weathering with Silicon Isotopes
Authors: Logan L Brooks
Synopsis: Enhanced rock weathering accelerates the carbonate-silicate cycle to remove CO₂ but tracking dissolution and secondary mineral formation is challenging. Using a ²⁹Si tracer under buffered pH to mimic soil, this synopsis quantified basalt dissolution and mineral precipitation. Osmium proved ineffective as a tracer due to low abundance and scavenging. Results highlight that secondary mineral formation must be included in CO₂ removal estimates to avoid overestimation, supporting enhanced weathering as a viable negative emission strategy.
A Method for the Integration of Low-Grade Waste Heat in Direct Air Capture Processes
Authors: Lindsey M Hamblin
Synopsis: This research addresses high costs in direct air capture by integrating waste heat from industries to regenerate sorbents and upgrade CO₂ concentration via staged vapor-liquid equilibria driven by thermal gradients. Amplification of CO₂ concentration ranges from 1.5x to nearly 30x, depending on waste heat quality. Simulations optimize carbon uptake and energy use, with bench-scale prototypes verifying the concept. Data centers are explored as integration sites, supported by techno-economic analysis and design insights.
REPORTS
Bioenergy with CCS Market (Polaris Market Research)
Carbon in the Amazon: Protected Areas & Indigenous Territories (Monitoring of the Andes)
2025 State of the Voluntary Carbon Market (SOVCM) (Ecosystem Marketplace)
The EU's climate action strategy (Think Tank European Parliament)
THE ATHENS DECLARATION & Policy Framework—On Global Cooperation to Remove Carbon Dioxide (CDRANet)
A scientific summary for policy-makers: the state of the science for Marine Carbon Dioxide Removal (mCDR) (UNESCO)
UPCOMING EVENTS
Carbon Removal Summit: Business Value in a Shifting Landscape by CUR8 Events | 03 June 2025 | London, England
Carbon Connect presents: Beyond Signatures — Mastering Carbon Credit Contracts for Corporate Buyers and Suppliers by Ceezer | 03 June 2025 | Online
Nordic Carbon Removal Association launch: a blueprint for action | 03 June 2025 | Copenhagen
Biochar Unlocked: A buyer’s roadmap to high-integrity carbon removal credit by Climate Impact X | 03 June 2025 | Online
ERW25: Terrestrial and marine carbon dioxide removal by enhanced rock weathering by University of Antwerp | 3-5 June 2025 | Belgium
One Ocean Science Congress | 3-6 June 2025 | Nice, France
The Business Case and Quality Assessments for NbS by Terrraformation | 04 June 2025 | Online
Revolutionizing Carbon Removal: The Power of Digital Monitoring Reporting and Verification Systems by EcoEngineers, Cowboy Clean Fuels, and Mangrove Systems | 05 June 2025 | Online
(NEW) 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
Negative Emissions Summit 2025 | 12 June 2025 | Brussels
(NEW) 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
(NEW) 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
(NEW) Carbon Removal Summit: Business Value in a Shifting LandscapUKby CUR8 | 23 June 2025 | UK
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
Carbon You Can Count On: Science-Backed Credits for Nature & People. A LCAW event by Revalue and Cloverly | 25 June 2025 | London, England
(NEW) 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
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
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 Research Assistant in the Security of Carbon Dioxide Drawdown During Enhanced Rock Weathering at University of Oxford | Deadline to apply: 12 June 2025
The main responsibility of this PDRA is to assess the potential for carbonate mineral formation downstream from the range of UK enhanced rock weathering demonstrator sites where crushed basalt is being applied. The PDRA will use pH stat experiments with calcite seeds to assess the threshold of elevated alkalinity at which calcite precipitation occurs in filtered porewaters from our Demonstrator field sites (treated and control plots/catchments), and synthetic solutions with ionic compositions constructed to mimic the envelope of chemistries of UK groundwaters and UK lowland river chemistry. Ultimately, these experiments will be used to parameterise calcite precipitation rate equations and empirical rate constants to inform catchment-scale modelling of ERW practices and GGR on UK lands.
Program Manager - CDR at Frontier / Stripe | San Francisco HQ
"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."
Software Developer at Planetary | Remote
"Planetary’s vision is to restore the climate and heal the ocean for generations to come. We do this by enhancing the ocean’s natural ability to fight climate change through carbon dioxide removal and storage."
Director of Policy- Tech at Carbon180 | Washington, 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."
Various open positions at Alt Carbon
"Alt Carbon is a deeptech science and data company, building agri infrastructure for climate action. We aim to make South Asia a hub for Carbon Dioxide Removal through technology pathways like Enhanced Rock Weathering."
Head of Operations at Brineworks | Amsterdam
"At Brineworks, we’re building breakthrough technology to produce sustainable CO₂ and H₂ using saltwater—unlocking clean, scalable fuels and carbon removal at a fraction of today’s cost."
Carbon Methodology Expert at AFRY | London, United Kingdom
"AFRY Management Consulting provides leading-edge strategic consulting and advisory services covering the whole value chain in energy, forest and other process industries. Our international bioindustry team with its forest, carbon, wood products, biorefining, paper, packaging and tissue experts forms one of the leading advisory teams globally."
Senior Manager, Strategic Sourcing at Vaulted Deep | US
"Vaulted Deep is a cutting-edge technology company that injects waste deep underground to support sustainability goals while providing waste management solutions to support clean land, air and water."
Associate Manager, Sustainability Demand at Indigo Ag
"Indigo Ag transforms on-farm regenerative agricultural practices into durable new revenue streams for farmers and agribusinesses, creating a more resilient world with thriving farmers and more sustainable and environmentally prosperous companies."
Senior Process Engineer at Carboculture | Helsinki, Finland
"Carbo Culture is a carbon removal technology developer on a mission to help mitigate climate change by permanently removing CO2."
Finance Associate-Operations Team at Octavia Carbon | Nairobi
"As Global South's first Direct Air Capture (DAC) company, we have commissioned the world's second DAC + geological storage plant—uniquely harnessing Kenya's renewable energy to capture carbon dioxide from the air for secure storage underground."
Looking for your dream job in CDR? There are 656 jobs available *right now*: check them all out at:
PODCASTS
CDR Policy Deep Dive - Part 3: The Road Ahead | The Carbon Removal Show
"In this final instalment of our three-part policy miniseries, Tom and Emily look to the future of carbon removal policy: who’s shaping it, what’s getting in the way, and what else can Emily see in her crystal ball?"
Concrete Carbonation: Shaping the Future of Carbon Removal and Emission Reporting | Cementing Europe’s Future
"In this episode of "Cementing Europe’s Future," we explore how concrete carbonation is reshaping CO2 emission reporting. Tomas Gustafsson from the IVL Swedish Environmental Research Institute provides insights into the challenges and opportunities of incorporating carbonation into guidelines and national emissions inventories, and the broader implications of these developments. Tune in to discover how carbonation could influence future greenhouse gas reporting standards and lead to more accurate reporting."
Robert Höglund Presents: The Many Perils of Being Catalytic in a Carbon Accounting World | Reversing Climate Change
"Should every dollar spent in carbon removal be maximally catalytic? Or is it okay to try to get a really good deal for your net-zero target? What even is this industry for?!
Joining the show today—somehow for the first time ever—is Robert Höglund, a long-time CDR-watcher and writer; Co-Founder of the carbon removal's data repository-of-record, CDR.fyi, and the Head of CDR at Milkywire.
Robert endures a barrage of questions about how his thinking on carbon removal has changed over the years, and him and host Ross Kenyon try to ferret out what it actually means to be catalytic. Is carbon accounting just for knuckleheads? The truth... may surprise you."
Cara Maesano: Can Heavy Industry Scale CDR? | Wicked Problems
"RMI's head of Carbon Dioxide Removals research on why it's not a nice-to-have, it's a must-do."
Is DAC dead? Will other CDR pathways get a second look? And will watercress save the world? | Wicked Problems
"Carbon Technology Research Foundation (CTRF) funds research areas that look to piggyback on nature to drawdown greenhouse gases. We spoke with Philippa Mina and Luke Williams."
Dr Daniel Klier: Why Carbon Markets Are a Vital Tool in the Sustainability Toolbox | Frankly Speaking - A Podcast on Responsible Business
"Last week, Microsoft signed one of the world’s largest carbon removal deals with carbon credit firm Rubicon Carbon, purchasing 18 million tonnes of carbon removal credits. But will investing in carbon markets necessarily reduce the urgency of reaching net zero emissions, and how large of a role should they play in the fight against climate change?
In a special edition of the Frankly Speaking podcast, Richard Howitt was joined by Dr Daniel Klier, CEO of the climate consultancy South Pole, which describes itself as the world’s leading carbon project expert."
Three ways to cool Earth by pulling carbon from the sky | Nature Podcast
"With the world looking likely to blow past the temperature targets laid out in the 2015 Paris climate agreement, a growing number of voices are saying that carbon removal technologies will be necessary if humanity is to achieve its long-term climate goals. If these approaches succeed, they could help nations and corporations to meet their climate commitments — and help the world to halt global warming.
However, questions remain about the financial viability of these technologies, and whether they can live up to the hype."
A European CDR Purchasing Programme | The CDR Policy Scoop
"A European CDR Purchasing Programme for Permanent Carbon Removal?
Sounds too good to be true? Well, it may become a reality soon.
On May 21st, the European Commission held a dedicated workshop on “A Purchasing Programme for CRCF Permanent Carbon Removal Credits”.
As stated in its own excellent pre-read, Europe will need to fund CDR with up to €6 billion by 2030 to achieve its indicative target of 5 Mt/year.
But where should this money come from? How should a purchasing programme be designed? And should it fund specific CDR technologies or take a broad portfolio approach?
These are just some of the many fascinating questions that were tackled in the workshop. Tune in for this CDR Policy Scoop, where Eve Tamme and Sebastian Manhart will analyse everything that happened and discuss the most important takeaways for you."
“Hot Air” from Tony Blair | Redefining Energy
"The Tony Blair Institute's new report, The Climate Paradox, has drawn praise from major outlets like the Guardian and BBC. Authored by Lindy Fursman, it claims climate action is stalled and calls for scaling carbon removal tech, especially direct air capture (DAC). The cover features Climeworks’ Iceland plant—yet the company recently admitted it has captured just 105 tonnes of CO₂ despite massive funding. This has prompted sharp critique and a debate on whether DAC is viable or simply hype."
What's in store for carbon removal under America's policy pivot? | The Carbon Curve
"This episode highlights the critical need for long-term strategies and adaptability in carbon removal policies amidst changing political landscapes. Key takeaways include the importance of making carbon removal efforts tangible and real for policymakers by emphasizing measurable impacts and local benefits, the necessity of building broad coalitions and engaging various stakeholders to sustain and expand carbon removal initiatives, and the focus on developing new, specialized carbon removal policies while defending existing programs to ensure continued progress in the sector."
Can nature help us to store carbon? The Climate Question | BBC News
"Around the world, scientists and entrepreneurs are pouring billions into researching new ways of storing carbon dioxide. We look at a scheme in India to put CO2 in rocks and research in the UK using kelp. Will either of them be effective?
Host Graihagh Jackson dives into the waters off Britain's southern coast to find out more about the magical powers of kelp, while Chhavi Sachdev visits a tea plantation in Darjeeling which is hoping to diversify into carbon sequestration."
YOUTUBE VIDEOS
The World's largest EW Greenhouse Experiment: Experiment Rebuild for 2025/2026 | Dirk Paessler
"We have been running the world's largest enhanced weathering greenhouse experiment since 2023. Now we are rebuilding it and make it twice as big along the way. Here is a video the documents the building process of the pots."
XPRIZE Carbon Removal demonstration | Silicate Carbon
"Weathering reactions between carbonic acid and minerals create bicarbonate, a stable form of inorganic carbon. When transported to the ocean, bicarbonate has a residence time of 80,000 years, constituting a carbon sink on climate relevant timescales. However, quantifying carbon removal by these reactions is complex, and an accurate, precise, internally consistent approach for measurement is integral to scaling enhanced weathering."
The Power Of Biochar | Exomad Green
The Power of Biochar” takes you to the heart of Bolivia’s Amazon, where Exomad Green—the world’s leading carbon dioxide removal (CDR) company—is leading the fight against climate change with a circular, powerful solution: biochar carbon removal.
Narrated by Sebastian Manhart, a leading CDR advocate, this film offers an up-close look at a solution that’s already making a massive global impact."
Webinar recap: Building trust and integrity in CDR | Klimate
This Week In Carbon - Episode 13 | This Week In Carbon
"Every week, Edward Smith invites carbon market enthusiasts for a call to discuss the biggest news stories of that week. For this episode of This Week in Carbon, moderator Edward Smith welcomed Abraham Robertson and Olivier Lejeune"
SWOT Analysis of Carbon Dioxide Removal Technologies | Remove and Reflect Podcast | Remove and Reflect Podcast
"This episode covers a master's thesis, authored by Ádám Füzi and supervised by Hans Puxbaum, who conducted a SWOT analysis of various carbon dioxide removal (CDR) technologies. The objective is to identify which current CDR methods are most likely to significantly reduce atmospheric CO2 concentrations to help meet the Paris Agreement target of limiting global warming to below 2°C."
This is CDR: Avnos' Water-Positive, Hybrid Direct Air Capture with Will Kain | OpenAir
"Unlike traditional DAC approaches that require large amounts of heat or water, Avnos’ HDAC technology uses a passive moisture-responsive material to first capture water from the air, then employs that harvested water in a subsequent CO₂ separation process powered by a low-temperature heat source. This two-step, no-liquid sorbent system enables Avnos to achieve carbon removal that is net water-positive—a critical advantage in a world increasingly shaped by water stress."
Weekly Carbon Removal Updates from 26 May - 01 June 2025 | Carbon Removal Updates Bulletin
DEADLINES
(NEW) Isometric released a draft universal GHG accounting module for CDR | Deadline: 09 June 2025
The UK government has opened a public consultation on its proposed business models to generate funding for greenhouse gas removals (GGR) technologies in general and bioenergy with carbon capture and storage (BECCS) projects in particular | This consultation closes on 09 June 2025.
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
Funding Opportunity—Carbon180 launched Making Waves, a regranting program offering $100K to marine CDR nonprofits | Apply by 20 June 2025
(NEW) Isometric opened public consultation on a new Direct Ocean Capture & Storage CDR protocol | Deadline: 27 June 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
(NEW) 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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