CARBON REMOVAL WEEKLY SUMMARY (14 APRIL - 20 APRIL 2025)—WEEK#16
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. Book
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
MAJOR MARKET UPDATE: Occidental has acquired Holocene, a direct air capture startup, through its subsidiary Oxy Low Carbon Ventures for an undisclosed sum. This marks Occidental's second DAC acquisition in two years, following its 2023 purchase of Carbon Engineering for $1.1 billion.
CALL FOR CONSULTATION: The EU Commission has opened a 12-week consultation, running until July 8, to assess potential reforms to the Emissions Trading System (ETS), with a focus on how carbon dioxide removal could be integrated to support the 2050 net-zero target.
LARGEST CDR DEAL: Microsoft has entered into the world’s largest carbon removal agreement, securing a 15-year contract to purchase 6.75 million metric tons of permanent CDR from AtmosClear, a subsidiary of Fidelis, utilizing BECCS technology.
WEB ARTICLE: A recent Bloomberg article raised concerns that investors are prioritizing speculative carbon removal technologies over scalable, existing solutions. This trend could delay meaningful climate progress by diverting funding and focus. Read reactions on this article from Paul Gambill and Robert Höglund.
REPORT: remove and ETH Zurich sus.lab published a new report that features insights from an explorative study on navigating venture capital funding for CDR startups.
EVENT RECORDING: In a recent webinar by OpenAir Collective, a panel of experienced CDR venture capitalists (VCs) discussed VC basics, what VCs look for, how they help develop CDR startups, and opportunities for CDR scientists to get involved in VC.
Read on to unpack more updates:
COMMERCIAL NEWS
Microsoft signed world's largest carbon removal deal to buy 6.75M tons of BECCS-based CDR from AtmosClear over 15 years (Reuters)
Occidental acquired DAC startup Holocene via Oxy Low Carbon Ventures (Heatmap)
SeaCURE launched UK pilot to remove 100t CO₂/year from seawater with £3M government support (Interesting Engineering)
Limenet partnered with Isometric to enter the ocean CDR market (LinkedIn)
Octavia Carbon secured investment from Carbon Drawdown Initiative to sacle DAC in Kenya (LinkedIn)
Indigo Ag has delivered nearly 1Mt of CDR via soil carbon credits (Carbon Herald)
BeZero & Xpansiv expanded partnership to boost carbon market data access (Carbon Herald)
The Economist Group teams up with Carbonfuture, Exomad Green & Varaha to back CDR efforts (Carbon Herald)
myclimate made first-ever biochar credit purchase via Cotierra in Colombia (LinkedIn)
CEEZER announced seven startups for Cohort 03 of its Carbon Coalition accelerator: CarbonIn Earth, Neolithe, Circular Impact, Sinkco Labs, Stack Carbon, HyveGeo, and Releaf—each working on innovative carbon removal and storage solutions (Ceezer.Earth)
City CDR Initiative launched its first cohort of 10 cities—including San Francisco, Stockholm, and Sydney—to explore how urban systems can integrate carbon removal (LinkedIn)
Cascade Climate awarded $1.2M to 9 ERW field data projects with Google, Frontier, and Grantham (Cascade Climate)
The Africa Carbon Removal Accelerator (ACRA) launched first cohort of 12 African CDR startups (LinkedIn)
RESEARCH PAPERS
Exploring Site-Specific Carbon Dioxide Removal Options With Storage or Sequestration in the Marine Environment – The 10 Mt CO2 yr−1 Removal Challenge for Germany
Authors: Yao, W., Morganti, T. M., Wu, J., Borchers, M., Anschütz, A., Bednarz, L. K., ... & Mengis, N.
Synopsis: Marine carbon dioxide removal (mCDR) and geological carbon storage (mCS) have potential to mitigate climate change alongside emission reductions. This study explores mCDR and mCS options in Germany, aiming to remove 10 Mt CO2 per year, addressing 8%-22% of the country's hard-to-abate emissions by 2045. Ten options are analyzed, focusing on environmental, resource, and infrastructure needs. Results suggest five options are feasible, with three potentially meeting the CO2 removal target. The study provides a basis for assessing socio-economic, ethical, and legal factors for regional CDR implementation.
A new hydrogen production route through biomass gasification in a two-stage fixed bed reactor within the BECCS concept: A techno-economic and life cycle assessment study
Authors: Rabea, K., Michailos, S., Hughes, K. J., Ingham, D., & Pourkashanian, M.
Synopsis: This study assesses hydrogen production via biomass gasification within a 10 MWth two-stage gasifier under the BECCS concept. Three scenarios—one without CCS and two with CCS—show thermal efficiencies of 41.4–49.8%. BECCS raises hydrogen costs from £3.16/kg to £4.17–5.40/kg. Life cycle analysis confirms BECCS as net-negative, with up to −21.3 kg CO₂-eq/kg H₂. Despite high OPEX, mainly from biomass and oxygen, this approach offers valuable insights for scaling sustainable hydrogen and guiding climate policy.
Sorbent Regeneration via Radiofrequency-Assisted Dielectric Heating for Direct Air Capture of CO2
Authors: Zeeshan, M., & Gurkan, B.
Synopsis: This study presents a novel method for regenerating CO₂ sorbents in Direct Air Capture using radiofrequency (RF) irradiation. By applying RF dielectric heating, CO₂ is rapidly desorbed from advanced sorbents made of ionic liquids and metal–organic frameworks. This approach allows efficient, targeted energy transfer, supports modular system design, and enables integration with renewable energy—offering a promising route for scalable, energy-efficient DAC.
Ocean alkalinity enhancement in a coastal channel: simulating localised dispersion, carbon sequestration and ecosystem impact
Authors: Anderson, H., Mongin, M., & Matear, R. J.
Synopsis: Ocean Alkalinity Enhancement adds alkaline substances to the ocean to boost CO₂ uptake. This study simulates local-scale OAE near Woodbridge, Tasmania, to assess impacts and guide field trials. Results show sequestration efficiency varies seasonally, driven by stratification. Wind and currents play minor roles. pH changes scale with injection rate and remain within safety limits. Local modeling is vital for monitoring and optimizing OAE alongside regional and global models.
Optimizing the generated waste proportion to improve the characteristics of biochar for CO2 sequestration and other applications
Authors: Anandapadmanaban, B. H., Chan, Y. S., Lin, C. W., & Liu, S. H.
Synopsis: Biochar, made from waste materials like plants, algae, and municipal waste, can absorb CO₂ and harmful soil pollutants. Its use in roads and sidewalks may capture vehicle emissions, reducing atmospheric CO₂. Applications include wastewater treatment, biofuel, biofertilizers, and more—offering eco-friendly solutions with zero energy emissions. This review highlights biochar's promise for carbon removal and environmental cleanup, though further research is needed for large-scale use.
Ocean alkalinity enhancement (OAE) does not cause cellular stress in a phytoplankton community of the subtropical Atlantic Ocean
Authors: Ramírez, L., Pozzo-Pirotta, L. J., Trebec, A., Manzanares-Vázquez, V., Díez, J. L., Arístegui, J., ... & Segovia, M.
Synopsis: This study examined the effects of ocean alkalinity enhancement on a natural plankton community in the Atlantic near Gran Canaria, Spain. Nine mesocosms created a gradient in total alkalinity (2400-4800 µmol L−1). Over 33 days, Phase I showed reduced photosynthetic efficiency and plankton abundance, while Phase II revealed community recovery, with increased chlorophyll and blooms of large nanoeukaryotes and Synechococcus spp. Proteomic changes indicated altered cellular functions, but no cellular stress was observed, suggesting nutrient limitation as a cause of reduced plankton numbers.
Weathering without inorganic CDR revealed through cation tracing—Preprint
Authors: Vienne, A., Frings, P., Rijnders, J., Suhrhoff, T. J., Reershemius, T., Poetra, R. P., ... & Vicca, S.
Synopsis: Enhanced Weathering with basalt rock dust shows promise for long-term CO₂ removal, but this study found no short-term inorganic CDR after 101 days in corn-planted mesocosms. CO₂ wasn’t captured through leaching, and soil carbonates declined. Most weathered base cations remained in soil, not plants or water. Estimated CDR potential was 18 kg CO₂ per ton of basalt, but with a lag in CO₂ capture. Still, benefits like improved soil fertility and organic matter stabilization may support long-term value.
Low latency global carbon budget reveals a continuous decline of the land carbon sink during the 2023/24 El Nino event—Preprint
Authors: Ke, P., Ciais, P., Yao, Y., Sitch, S., Li, W., Xu, Y., ... & Chevallier, F.
Synopsis: This study finds that from July 2023 to July 2024, atmospheric CO₂ rose at a record-high rate of 3.66 ± 0.09 ppm/year, largely due to a weakened global land carbon sink during the 2023/24 El Niño. A 2.24 GtC/year drop in land uptake, especially in the Amazon, central Africa, and Southeast Asia, drove the increase, partially offset by a stronger ocean sink. Though the anomaly is smaller than past El Niños, this update shows El Niño’s major role in recent CO₂ rise and tropical carbon losses.
Meeting climate goals through mitigation and intervention: developments in emissions reduction, greenhouse gas removal, and solar radiation modification
Authors: McGrath, D.
Synopsis: With current emissions trends risking breaches of the Paris Agreement’s 1.5°C and 2°C targets, this review highlights three key climate actions: emissions reduction, greenhouse gas removal (GGR), and solar radiation modification (SRM). Emissions reduction remains essential but slow. GGR must scale sustainably despite technical and economic hurdles. SRM is gaining attention as a potential near-term tool but requires robust research and governance. Together, these actions can help limit warming and its impacts.
Enhancement of Biochar Carbon Sequestration Through Mineral Regulation: Effects and Mechanisms
Authors: Yang, F., Gao, P., Chi, L., Gao, Z., Wang, Y., Luo, L., ... & Sima, J.
Synopsis: This study explores enhancing biochar's carbon retention and stability by pre-treating waste biomass with metal salts and minerals. Ca(H₂PO₄)₂ was most effective, boosting carbon retention by 15% and stability by 12% through formation of stable bonds like C–O–P. Mechanistic analysis showed it altered pyrolysis pathways, raising activation energy and preserving aromatic structures. The findings support improved biochar use for carbon sequestration.
Techno-economic analysis of ocean iron fertilization
Authors: Ward, C., Lee Pereira, R. J., Foteinis, S., & Renforth, P.
Synopsis: This study presents a framework for techno-economic assessment (TEA) of carbon dioxide removal methods, applied to ocean iron fertilization (OIF) in the Southern Ocean. The first FOAK levelized cost of carbon (LCOC) for OIF is ~$200/tCO2, decreasing to ~$180/tCO2 with learning rates. Oceanographic parameters, like carbon export efficiency, impact costs more than engineering factors. Sensitivity analysis shows a cost range from $25/tCO2 to $53,000/tCO2 depending on various parameters. The study recommends further research on oceanographic parameters and OIF deployment methods to reduce costs and uncertainty.
Techno-economic and environmental life cycle analysis of renewable-based combined potassium - calcium looping cycle for direct air CO2 capture
Authors: Cormos, C. C.
Synopsis: This study evaluates an innovative potassium-calcium looping cycle for Direct Air CO2 Capture, combining liquid solvent and solid sorbent for energy-efficient CO2 capture. The system’s high temperature energy recovery potential makes it cost-effective, with renewable energy sources like solar or biomass used to meet thermal needs. The two DAC concepts capture 1 Mt/y CO2 with 75% efficiency. Performance indicators show high CO2 capture, negative global warming potential (-981/-995 kg CO2 eq./t CO2), lower environmental impact, reduced energy penalty, and CO2 capture costs of 164–188 €/t.
Mineral‑fungal interactions in response to biochar amendment: implications for carbon storage in saline-alkali soil
Authors: Liu, L., Chen, M., Meersmans, J., Li, Y., Zhang, S., & Ding, X.
Synopsis: This study explores the impact of biochar on soil organic carbon (SOC) stabilization in saline-alkaline soils over six years. Treatments included mineral fertilizer (NPK), biochar-based NPK (BC), and Fe-modified biochar-based NPK (FeBC). Results showed that biochar increased illite content, stable organic carbon fractions, and fungal diversity, particularly Ascomycota. A positive correlation between illite and aromatic-C suggested organic-mineral complexes may reduce carbon mineralization, improving SOC storage and stability. Fe-modified biochar showed lasting benefits.
WEB POSTS
New accounting rules blur the line between decarbonization and carbon dioxide removal (carbon)plan
New CO2 Capture Technology is 99,000x Faster Than Earth’s Oceans (AOL)
“Stopping climate change” is the wrong goal (Freethink)
Embedding Carbon Removal Everywhere (Inevitable & Obvious)
Accelerator Showcase: Greenhouse gas removal (Stanford University)
Zurich project explores storing CO₂ beneath Switzerland (Swiss Info)
Durable carbon dioxide removals: The missing linchpin of carbon market strategy in India (Economic Times)
From Biomass to Billon Dollar Carbon Removals Market (Biomass Magazine
Crushed basalt: A sustainable solution for soil acidity, crop yields, and climate? (RASE)
Absolute Climate Announces Advisory Board and Key Hire to Advance Independent Standard for Carbon Removal (Yahoo Finance)
Big Bets on Speculative Carbon Capture Tech Ignore Today’s Solutions (Bloomberg)
Paebbl starts operating its continuous demo plant, a world-first for CO₂ mineralisation (Paebbl)
Battle over carbon storage in Louisiana launches in legislature (Louisiana Illuminator)
Project to suck carbon out of sea begins in UK (BBC)
Residual waste: a waste of energy and carbon removals? (The Carbon Removal Show Newsletter)
Societal and economic synergies of AI and durable carbon removal technology (Climeworks)
How to Accelerate Bending the Temperature Change Curve (Green Money)
Regenerative Agriculture 2.0: The value of integrated offerings (LinkedIn)
Inside Japan’s GX-ETS carbon market and its global climate impact (Carbon Direct)
BOOK
Revolutionizing CO2 Removal: The Power of Carbon Capture Surfaces™ (Reactive Surfaces)
REPORTS
Bioenergy with Carbon Capture and Storage as a Tool for Climate Change Mitigation (Clean Air Task Force)
The 2025 Guide to Carbon Removal Policy (Carbonfuture)
Lux Innovation Grid—Direct Air Capture (Lux Research)
Navigating Venture Capital—Fundraising Lessons and Investor Insights for Carbon Removal Startups (remove & ETH sus.lab)
Building with Biomass: A New American Harvest (RMI)
The Charm Underground - Q1 ’25 Wrap Up (Charm Industrial)
Direct Air versus Direct Ocean CO2 Capture (ESG Economist)
UPCOMING EVENTS
(NEW) ClimateHack Amsterdam: The Future of Water and Ocean Tech by Hack | 22 April 2025 | Amsterdam, Noord-Holland
Overcoming the Hurdles: Making Carbon Removal Affordable, Understandable, and Scalable for Midsize Buyers by Eliza Erskine, Angela Tseng & SF Climate Week | 22 April 2025 | California
Global Biochar Exchange 2025 | 22-25 April 2025 | Japan
Carbon Removals Drinks by ClimateImpact Calendar | 22 April 2025 | California
How understanding carbon removal positions you to be a better CSO by Eliza Erskine & 6 others | 22 April 2025 | San Francisco, California
Protecting Forests & Scaling Climate Impact by Sophie Westover, SF Climate Week | 23 April 2025 | San Francisco, California
Noya presents: A DAC Demo Site Tour by Hiro, josh santos & SF Climate Week | 23 April 2025 | California
Assessing the Feasibility for Large-Scale DACCS Deployment in the UK by City Science | 23 April 2025 | Online
Scaling Demand & Corporate Action: A San Francisco Climate Week CDR Breakfast by Puro.earth | 23 April 2025 | San Francisco
(NEW) CO₂ — Waste or Commodity? by CDR Policy Scoop | 24 April 2025 | Online
Oxford Net Zero and Workday on carbon removals & tour of Charm Industrial's carbon removal technology by Charm Tours | 24 April 2025 | San Francisco, California
(NEW) Creating the CDR Leaders of Tomorrow by OpenAir Collective | 24 April 2025 | Online
First Annual Climate Restoration Summit at the 2025 EarthX Congress of Conferences | 24 April 2025 | Dallas, Texas
Removing ‘analysis pyrolysis’ in biochar projects | 24 April 2025 | Online
Carbon Removal explained by Pinwheel | 24 April 2025 | Online
Carbon Removal Through Improved Forest Management: The Benefits of IFM by Forliance | 24 April 2025 | Online
Biochar's Potential in Carbon Markets by Australia New Zealand Biochar Industry Group (ANZBIG) | 24 April 2025 | Online
Mobilization Workshop: The NY Carbon Farming Act by OpenAir | 24 April 2025 | Online
(NEW) From Scope 3 to Success: Mastering Supply Chain Climate Action by Trellis and Ceezer | 24 April 2025 | Online
Carbon Newbie Summit at SF Climate Week 2025 by Carbon Newbie Summit | 25 April 2025 | California
(NEW) EGU General Assembly 2025 | 27 April - 02 May 2025 | Vienna, Austria & Online
European Carbon Removal Policy in 2025: The Trailblazers Moving CDR Forward by Carbonfuture | 29 April 2025 | Online
Carbon Catalyst by the Pembina Institute's CDR Centre | 30 April 2025 | Calgary
DC Climate Week | 28 April – 02 May 2025 | Washington, D.C.
(NEW) Direct Air Capture Developments: Technology Innovations, Supply Chains, and Electrochemical by IDTechEx | 01 May 2025 | Online
Bio-CO2 Use and Removal 2025 | 06 May 2025 | Helsinki, Finland
(NEW) Is Mineralization the Answer to CDR's Scaling Challenges? by Institute for Responsible Carbon Removal | 06 May 2025 | Online
GGR Insights: Critical factors in financing GGR technologies from 2026 onwards | 07 May 2025 | Online
(NEW) Securing Carbon Removal Funding in Trump’s America by Carbon Unbound | 07 May 2025 | Online
Workshop on Nature-Based Solutions for Carbon Dioxide Removal by CSink | 07 May 2025 | In-Person (Spain) & Online
APAC CDR Summit 2025 by Puro Earth & Carbon Business Council | 07 May 2025 | Singapore
(NEW) Scaling Durable CDR: Challenges, Opportunities, and the Role of Standards by Sylvera and CDR.fyi | 08 May 2025 | Online
(NEW) Mastering carbon removal procurement—How to design effective RFPs and secure high-quality carbon removal by Supercritical | 08 May 2025 | Online
Carbon Management Americas Conference | 13-15 May 2025 | Denver, Colorado
UPTAKE webinar series on CDR | 14 May 2025 | Online
(NEW) Building Trust & Ensuring Integrity in CDR by Klimate | 15 May 2025 | Online
Direct Air Capture Conference by Energy Conference Network | 15 May 2025 | Louisiana
Bio-Char IV Conference | May 18-23, 2025 | Santa Marta, Colombia
(NEW) The State of CDR Tech: What’s Next in Digital MRV? by Isometric | 19 May 2025 | New York
(NEW) PGR and ECR Biochar Seminar by The Biochar Demonstrator | 19 May 2025 | United Kingdom
The Global Business Summit Accelerating Gigaton-Scale CDR by Carbon Unbound | 20 & 21 May 2025 | New York
Workshop: Perspectives on a Purchasing Programme for CRCF Permanent Carbon Removal Credits by EU | 21 May 2025 | Online
(NEW) Carbon Removal Summit: Business Value in a Shifting Landscape by CUR8 Events | 03 June 2025 | London, England
Carbon Removal Investment Summit 2025—Modelling-Driven Insights and Outlook by cCarbon | 03 June 2025 | London, UK
ERW25: Terrestrial and marine carbon dioxide removal by enhanced rock weathering by University of Antwerp | 3-5 June 2025 | Belgium
(NEW) One Ocean Science Congress | 3-6 June 2025 | Nice, France
Carbon Clean-up Camp | 25 June 2025
LAC Soil Carbon 2025 | 25-28 June 2025 | Reo de Janeiro (Brazil)
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
The UK GGR Event by CO2RE Hub | 29 September - 01 October 2025 | United Kingdom
alt futures—India's Carbon Removal Summit by Alt Carbon | 05 October 2025 | Bengaluru, India
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JOB OPPORTUNITIES
CDR Electrochemist - CoFounder at CIRCEO Carbon Capture | France
"Circeo, a french company looking at CDR with a bit of a different approach
We think like many that Massive reduction in greenhouse gas emissions, notably through electrification of sectors reliant on fossil fuel will definitely not be enough. Large-scale carbon capture is unavoidable to cope with the hard to abate emissions and decrease the stock of past emissions.
Both actions will hardly compete for low carbon electricity, creating a bottleneck with other grid usage.
From our point of view it is impossible to solve the Carbon Capture equation without solving at the same time the required low carbon electricity production, at scale both problems becoming one.
We design semi-autonomous ocean drones that will produce renewable energy from wind, and perform electrochemical processes on board resulting in atmospheric CO2 capture and sequestration for thousands of years.
Our drones will operate far-shore in unoccupied international waters, paving the way for an easier predictable ramp-up.
Circeo development path, first prototype by mid 2027 and operational capability from 2030 is aligned with current consensus of market structuration and growth. Circeo's business model involves selling drones, licensing technology and selling carbon credits."
Postdoctoral Researcher: Testing of CDR via Coastal Olivine Weathering at University of Southern California
“The University of Southern California (USC) is seeking applications for a postdoctoral position in Carbon Dioxide Removal via Coastal Olivine Weathering. It’s interesting work, with a dynamic group of folks here at USC tackling CDR from a variety of perspectives.”
Electrochemical Engineer 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."
Wastewater Technology & Research Scientist at Crew Carbon | New Haven, CT
"CREW utilizes the extensive infrastructure present in wastewater treatment systems to provide robust, empirical, and durable carbon dioxide removal through enhanced weathering."
Carbon Removal Sourcing Manager, LATAM at Carbonfuture | Remote, LATAM
"Carbonfuture is the Trust Infrastructure for durable carbon removal."
Assistant Specialist in Biomass and Bioenergy at The University of California, Agriculture and Natural Resources | Riverside County, California | Deadline: 01 August 2025
"The Assistant Specialist will work under the guidance of the Principal Investigator and the Co-Principal Investigator. The Assistant Specialist will conduct geospatial, lifecycle, and techno-economic research on biomass, biofuels and other bioproducts, and will be involved in researching products utilizing forest-sourced biomass to showcase at the demonstration sites and provide technical assistance to companies. The work will involve conducting literature reviews, gathering and analyzing data through market research, conducting techno-economic assessment (TEA), lifecycle assessment (LCA), and geospatial analysis, drafting reports/papers, and potentially preparing grant applications. The work will require developing and maintaining close collaborations with stakeholders including the state and federal agencies, industry, research institutions, non-governmental organizations (NGOs), forest landowners and the public."
Mechanical Engineer at Octavia Carbon | Nairobi
"Octavia Carbon is the global south’s first Direct Air Capture company. We design, build, and deploy our DAC technology in Kenya."
Test Engineer at Sirona Technologies | Brussels, Belgium
"At Sirona Technologies, we are developing direct air capture (DAC) technology to remove CO2 from the air and combat climate change. We are a young startup and are now scaling up our prototypes into industrial machines ready for mass production."
Head of Finance (CFO) at InPlanet
"InPlanet is an impact-driven, remote-first, ClimateTech (CDR) startup headquartered in Germany and Brazil to reverse climate change and make tropical agriculture more regenerative, low-carbon, and sustainable. We are working with Enhanced Rock Weathering in tropical agriculture, focusing on Brazil."
Looking for your dream job in CDR? There are 718 jobs available *right now*: check them all out at:
PODCASTS
"Biomass burial has immense potential to scale," Grant Canary, Mast Reforestation CEO | Carbonsations
"Joining us for today's episode is Grant Canary, CEO and Founder of forest restoration company Mast Reforestation. Grant talks in depth about the all-around benefits of biomass burial as an effective, scalable and inexpensive carbon removal solution."
Insights from the 2025 Ocean Visions Summit, Part Two | Plan Sea Podcast
"This episode of Plan Sea was recorded live at the Ocean Visions Biennial Summit 2025 in Vancouver, Canada. Host Anna Madlener is joined again by special co-host, Danny Gawlowski, Carbon to Sea’s Senior Manager of Communications, for Part Two of a series of conversations on ocean-based climate solutions. Part One focused on the role of the ocean in carbon removal, while this episode focuses on other key aspects of the ocean-climate nexus, including reducing emissions, repairing ecosystems, and reaching global communities."
Scaling Nature-Based Solutions with Ikarus Janzen | What goes up, must come down
"In this episode, host Simon Bager (PhD) sits down with Ikarus Janzen from Varaha to explore the challenges and opportunities of scaling nature-based carbon removal solutions. They discuss how reforestation, soil carbon, and other natural methods can be scaled effectively, the policies needed to support them, and the role of businesses in driving impact. Can nature-based solutions deliver on their promise at scale? Tune in for a deep dive into the future of climate action through nature!"
UN SDGs - Carbon Removal and Carbon Credit | SDGs Podcast
"Report: The Interplay Between Event Carbon Removal Strategies and the United Nations Sustainable Development Goals
This report/podcast investigates the intricate relationship between carbon removal strategies implemented within the events industry and the United Nations Sustainable Development Goals (SDGs). The analysis reveals a critical link between these strategies and the achievement of the SDGs, particularly SDG 13 (Climate Action), which necessitates urgent measures to combat climate change and its impacts. While the events industry significantly contributes to carbon emissions, the adoption of various carbon removal approaches, such as carbon offsetting, afforestation and reforestation, enhanced weathering, bioenergy with carbon capture and storage, and direct air capture, presents substantial opportunities for mitigation. These strategies not only directly address climate change but also offer numerous co-benefits that align with other SDGs, including improved environmental quality, social equity, and economic development. However, challenges related to cost, scalability, measurement, and potential trade-offs must be carefully considered. By embracing transparent and robust carbon removal practices and aligning them with the broader SDG agenda, the events industry can transition towards a more sustainable future, contributing to global efforts in addressing climate change and fostering sustainable development for all."
Carbon Removal Day Panel: Lucy Hargreaves, Daniel Kelter, Jorden Dye | Energy vs Climate
"On February 27, 2025, EvC co-host Ed Whittingham hosted a panel discussion at Carbon Removal Canada's Carbon Removal Day in Ottawa. They cover a number of topics including the changing political headwinds in the US, efforts to bolster investment in Canada, and silicon valley's interest in CDR. Plus, they take a few audience questions."
CBAM: The Carbon Removal Catalyst? | The CDR Policy Scoop
"How can the EU's Carbon Border Adjustment Mechanism help scale carbon dioxide removal?
Designed to put a price on imported carbon and prevent leakage, but could it also act as a catalyst for scaling CDR?
This CDR Scoop cuts through the noise to explore this critical link. We're digging deep to uncover the potential synergies and challenges.
To ensure we cover all angles, we're thrilled to welcome leading CBAM expert Dan Maleski from Redshaw Advisors. Get ready for unparalleled insights from someone truly in the know!"
YOUTUBE VIDEOS
CRC 2025 Webinar: Demystifying Venture Capital for CDR | OpenAir
"In this webinar, a panel of experienced CDR venture capitalists (VCs) discussed VC basics, what VCs look for, how they help develop CDR startups, and opportunities for CDR scientists to get involved in VC.
Our panelists were Karen Strassel, PhD, Senior Science Associate, Carbon Removal Partners (Switzerland); Amanda Rohrer, CFA, Principal at Blackhorn Ventures (US); and Andrew Shebbeare, Managing Partner, Counteract (UK). Carbon Removal Co-Lead Sue Dorward moderated.
Amanda Rohrer is a Principal at Blackhorn Ventures, where she leads the firm's energy and carbon investment verticals. Amanda has over 10 years of investment experience, guiding over $2 billion of capital commitments across the energy, built environment, and infrastructure sectors.
Andrew is a partner at Counteract, where he leads investments into early stage carbon removal, with a personal focus on engineered solutions. Before getting involved in CDR, he spent 25 years building and growing companies as an entrepreneur himself.
Karen Strassel leads the scientific due diligence at Carbon Removal Partners, a Zurich-based VC investing along the carbon removal value chain. She holds a PhD in chemistry and previously worked on CDR at The Climate Map (acquired by RMI) and in the sorbent development team at Climeworks."
This is CDR: Tropical Scale, Global Impact - NetZero’s Bold Biochar Vision for Brazil. | OpenAir
"NetZero is building one of the most ambitious biochar production networks in the world—with active operations in Brazil and West Africa, and plans to scale across the Global South. In this episode, we’ll spotlight their work in Brazil, where a decentralized model for biochar production is transforming agricultural residues into high-quality carbon removals and soil-enhancing amendments. We’ll speak with members of the NetZero leadership team about their vertically integrated approach—from sourcing biomass and operating production units to selling carbon credits and supporting local communities. We’ll also explore their strategy for scaling in the tropics, how they're adapting their model to new geographies, and why Brazil remains a cornerstone of their climate impact mission."
Could the Answer to Climate Change Lie Beneath Our Feet? | Meet the Finalists| XPRIZE Carbon Removal | XPRIZE
"The Earth's biosphere has quietly regulated our climate for millions of years, with forests, grasslands, and soils playing a crucial role in absorbing and storing carbon. However, deforestation, soil degradation, and ecosystem destruction are weakening these natural defenses.
This episode showcases how five XPRIZE Carbon Removal finalist teams are working to restore and enhance these natural systems with groundbreaking land-based solutions.
Meet the teams:
Applied Carbon: Applied Carbon’s mobile technology converts crop residues into durable biochar on the move and in the field, making the economics work for farmers and our ecosystems.
MASH Makes: MASH Makes produces biochar and carbon-rich biofuels from cashew shell waste in India. These biofuels can potentially replace fossil fuels in sectors that are difficult to decarbonize.
NetZero: NetZero focuses exclusively on the immense volumes of unused crop residues available in the tropics, and leverages their technology of mid-size, automated, highly optimized, and easily replicable pyrolysis plants.Takachar: Takachar’s mobile system uses pyrolysis to create biochar by heating agricultural biomass waste without oxygen.
Vaulted Deep: Vaulted Deep utilizes wet organic waste in their carbon removal solution–including manure and municipal sewage that can be toxic for the environment. Vaulted Deep’s carbon removal solution turns this waste into a carbon-rich slurry, which is then injected deep underground in salt caverns between tiny cracks within the rock.
Learn how these land-based CDR solutions offer the promise of a more sustainable future by supporting farmers and communities and scaling globally."
Should businesses be using carbon removal credits? | edie
'At the edie 25 conference in March 2025, the edie Extra stage hosted honest and thought-provoking conversations with climate leaders and sustainability experts about the ever-changing world of corporate climate action.
Here, Narrative Matters CEO Tom Idle chairs a discussion on whether, by using carbon removals, businesses are driving credible climate action, or simply finding excuses not to reduce their own emissions.
Tom's guests are Kaya Axelsson, head of policy and partnerships at Oxford Net Zero, and Tom Byrne, Head of Net Zero and Environment at British Airways.
Tom and the panel also explore how carbon removal buyers can engage with credit developers, regulators and investors to grow the market and enhance credibility."
3 weird new ideas from the frontier of carbon removal demand | Tito - AirMiners
2025- 2/26 Land Model/Biogeochemistry Winter Working Group | NSF NCAR CGD Laboratory
Weekly Carbon Removal Updates from 14 April - 20 April 2025 | Carbon Removal Updates Bulletin
DEADLINES
Call for Consultations—Puro.earth opened consultation on biochar methodology updates | Deadline: 24 April
The Swiss Federal Office of Energy has earmarked 100 million Swiss francs for CDR, CCS and storage projects under the new Climate and Innovation Act | Pre-proposal deadline: April 25, 2025
Isometric released the first-ever River Alkalinity Enhancement Protocol for public consultation—outlining the requirements for high-quality CDR via rivers | Deadline to provide comments: 26 April 2025
Funding Opportunity—Call for Carbon Dioxide Removal Innovation by B.C CICE | Application Deadline: 30 April 2025
Call for Proposals—Tencent launched global CarbonX program 2.0 to accelerate climate tech innovation including CDR | Application Deadline: May 2025
Call for Consultations-Riverse launched public consultation on its new ERW methodology | Deadline to provide comments: 05 May 2025
The Science Based Targets Initiative released a draft of the Corporate Net-Zero Standard V2 for public consultation, outlining options for companies to integrate CDR into their net-zero strategies—applicable only to scope 1 emissions | Deadline to provide response: 01 June 2025
Puro.earth is revising its Enhanced Rock Weathering methodology, with a public consultation ending in June 2025
Student Writing Competition: Marine Carbon Dioxide Removal Law and Policy | Submissions are due by 15 June 2025
(NEW) 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 Manuscripts—Soil microbiome in carbon sequestration | Submission deadline: 29 October 2025
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