CARBON REMOVAL WEEKLY SUMMARY (28 APRIL - 04 MAY 2025)—WEEK#18
Links to recent scientific papers, web posts, upcoming events, job opportunities, podcasts, and event recordings, etc. on Carbon Dioxide Removal Technology
1. This Week’s Top CDR Highlights
2. Commercial News
3. Research Papers
4. Web Posts
5. Reports
6. Upcoming Events
7. Job Opportunities
8. Podcasts
9. YouTube Videos
10. 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 global survey of microplastics in oceans reveals that tiny plastic particles are found throughout the water column—from surface to deep sea—raising concerns that they may disrupt marine ecosystems and weaken the ocean’s ability to store atmospheric carbon by interfering with carbon storage in the deep ocean.
NEWS: U.S. President Donald Trump’s 2026 budget proposed cutting over $15.2 billion in bipartisan Infrastructure Investment and Jobs Act (IIJA) funding allocated to carbon dioxide removal, renewable energy, and other clean technologies.
RESOURCE: Cascade Climate released ERW Metal Accumulation Calculator (ERW-MAC), a tool to help assess potential metal accumulation risks in soils from enhanced rock weathering projects.
PERSPECTIVE: World Resources Institute published a detailed technical perspective on how to scale Carbon Dioxide Removal in the US, with global relevance and lessons.
POLICY MEMOS: Carbon Removal Alliance published two policy memos on the opportunity for partnerships between CDR companies & the mining and wastewater industries.
Read on to unpack more updates:
COMMERCIAL NEWS
Mirova invested $40M in carbon projects in Argentina, Costa Rica & Madagascar to restore 40,000 ha, remove 9.5Mt CO₂ & support local communities (Impact Investor)
Mombak raised $30M Series A to scale Amazon reforestation & carbon removal (ESG News)
Carbon Centric got a third Enova SF grant to study capturing 30,000 tCO₂/year from biogenic waste at Solør Bioenergi’s Kirkenær plant (Carbon Herald)
Carbon Alpha selected Mangrove Systems for digital MRV for the North Star BECCS project (Gas World)
Mission Zero opened world’s first fully integrated DAC plant in Norfolk, UK, that has ability to capture 250 tCO₂/year for carbon-negative limestone (Mission Zero)
BiocharIND launched by PRESPL, APChemi & Intellecap to build India’s largest biochar carbon credit platform (Biochar Today)
Carbon RX joined Terrestrial Storage of Biomass Coalition to scale biomass-based carbon removal (Nation Talk)
Chestnut Carbon planted 17M+ trees on 30,000 acres in the largest U.S. afforestation project (ESG News)
Idemitsu Kosan invested in Carbon Removal Partners VC fund for net-zero tech (Indian Chemical News)
CO2-Sync & Carbo-FORCE opened Utah’s first biochar plant, using beetle-killed wood for carbon removal (Biochar Today)
Biomas launched $9.7M reforestation project in Brazil that aims to plant 2M trees on 1,200 ha to generate 500K carbon credits over 40 years (ESG Today)
Carbonité opened Canada’s largest industrial biochar plant (10,000 t/year) in Quebec (Biochar Today)
CREW Carbon issued first-ever wastewater alkalinity CDR credits (104.4) to Frontiers under Isometric (Isometric)
Minneapolis is building North America's first city-owned biochar plant to turn 3000 tons wood waste annually into 500 tons of carbon-storing biochar (Finance Commerce)
BlueLayer partnered with Puro.earth, as a dMRV and project data infrastructure partner (LinkedIn)
Cascade Climate released ERW-MAC tool to assess metal accumulation risks from enhanced rock weathering (Cascade Climate)
RESEARCH PAPERS
Area demand quantification for energy system-integrated negative emissions based on carbon dioxide removal portfolios
Authors: Dominik Keiner, Andreas Mühlbauer, Christoph Gerhards and Christian Breyer
Synopsis: This study compares land use impacts of different carbon dioxide removal portfolios for 1.5°C and 1.0°C climate targets. Biomass-heavy portfolios demand far more land—up to 3% of global land and 9.7% of today’s cropland—than technical CDR options like direct air capture. Portfolios prioritizing low land use or high tech readiness can keep net area demand under 1.4%. Including energy for the full system has little added land impact. Technical CDR routes are more land-efficient than biomass-based approaches.
Bio-accelerated weathering of ultramafic minerals with Gluconobacter oxydans
Authors: Joseph J. Lee, Luke Plante, Brooke Pian, Sabrina Marecos, Sean A. Medin, Jacob D. Klug, Matthew C. Reid, Greeshma Gadikota, Esteban Gazel & Buz Barstow
Synopsis: Ultramafic rocks, rich in cations like Mg, Ni, and Co, can aid CO2 sequestration and provide elements for sustainability technologies. However, natural weathering is too slow to address current climate change. This study shows that gluconic acid-based lixiviants produced by Gluconobacter oxydans accelerate cation release by 20× compared to water, with enhanced leaching of multiple metals. At high pulp densities, biolixiviants are significantly more effective, reducing the feedstock needed to mineralize CO2 from 525 to 1 carbon atom per Mg2+ ion.
Amine-Functionalized Defective MOFs for Direct Air Capture by Postsynthetic Modification
Authors: Wenzhe YanJing HouTao YanZhikun LiuPeng Kang
Synopsis: This study investigates the performance of amine-functionalized defective metal-organic frameworks (DM) for direct air capture (DAC) of CO2. Chromium-based DM was modified with ethylenediamine (EDA), tris(2-aminoethyl)amine (TAEA), and polyethylene-polyamines (PEPA). The best performance was achieved with 1:1-PEPA-DM, which showed a CO2 adsorption capacity of 1.26 mmol/g, 75.1 kJ/mol regeneration energy, and only 26.62% capacity loss after 12 cycles. The results highlight covalent PEPA grafting as a promising approach for durable DAC sorbents.
Carbon dioxide pipelines are disproportionally located in marginalized communities in the United States
Authors: Julia A. Davis, Nafiseh Salehi, Liqing Li & Majid Shafiee-Jood
Synopsis: Carbon capture and storage and carbon dioxide removal technologies are critical for achieving net-zero goals, but their expansion via pipelines raises environmental justice concerns. This study examines the distribution of CO2 pipelines using census data and spatial analysis. Results show that higher-income communities are less likely to host pipelines, while Black residents are disproportionately located near proposed pipelines. Despite projections suggesting reduced impacts in some demographics, rural areas remain most affected, highlighting persistent inequities.
Carbonate weathering enhances nitrogen assimilatory uptake in rivers globally
Authors: Hongkai Qi, Yi Liu, Haoran Wang, Xingxing Kuang, Aditya Nugraha Putra, Jiu Jimmy Jiao & Jianping Gan
Synopsis: Bedrock carbonate content can shape river chemistry, but its impact on nitrogen cycling is often overlooked. This study across China’s Pearl River Basin shows that in carbonate-rich regions, dissolved organic nitrogen (DON) correlates with solar radiation and dissolved inorganic nitrogen during the wet season. Warmer, sunlit, carbon-rich waters boost DON production. Similar patterns in Indonesia and global data suggest carbonate weathering may broadly enhance organic nitrogen production.
Carbon removal, mitigation deterrence and the politics of target separation. Evidence from the EU 2040 climate target negotiation
Authors: Alina Brad and Etienne Schneider
Synopsis: This study explores the political dynamics surrounding the EU's 2040 climate target design, focusing on the risks of mitigation deterrence from integrating carbon dioxide removal methods into climate policy. It finds that most stakeholders, including businesses, prefer separate targets for emission reductions and CDR, though for different reasons. Despite this, the European Commission rejected target separation, citing concerns over complexity, cost, and growing political opposition. The study highlights the need for further exploration of how target separation can be made politically feasible.
A full-scale staged, pressurized oxy-biomass combustion towards BECCS: Performance assessment via CFD approach
Authors: Xiangdong Li, Hui Lin, Guan Wang, Gaofeng Dai, Yong Qiang Chen, Yong Luo, Yili Zhang, Jiaye Zhang, Houzhang Tan, Richard L. Axelbaum, Xuebin Wang
Synopsis: This study examines the efficiency of staged, pressurized oxy-biomass combustion (SPOBC) for BECCS, using simulations of a 550 MW SPOBC boiler. Results show that SPOBC outperforms coal-based oxy-combustion in terms of net plant efficiency, with significantly lower NO and near-zero SO2 emissions. The low sulfur content in biomass reduces desulfurization and denitrification costs. CFD modeling suggests efficient combustion, making SPOBC a promising technology for achieving negative carbon emissions and ultra-low pollutant emissions.
The distribution of subsurface microplastics in the ocean
Authors: Shiye Zhao, Karin F. Kvale, Lixin Zhu, Erik R. Zettler, Matthias Egger, Tracy J. Mincer, Linda A. Amaral-Zettler, et al.
Synopsis: This study synthesizes data from 1,885 stations between 2014 and 2024 to explore the distribution of subsurface microplastics (below 50-cm depth) in the oceanic water column. Findings show that microplastics, ranging from 1 µm to 5,000 µm, are unevenly distributed, with smaller particles more evenly spread and larger ones concentrated in stratified layers. Microplastics contribute up to 5% of the particulate organic carbon at depths of 2,000 m.
Community perspectives on marine carbon dioxide removal and ocean alkalinity enhancement: A future scenario approach
Authors: Sara Nawaz, Giulia Belotti
Synopsis: Few studies have explored how communities perceive ocean alkalinity enhancement, a carbon removal method now entering field trials. This research examined views in Washington’s Olympic Peninsula, finding that local perspectives focused more on social, political, and justice concerns than just ecological impacts. Participants favored low-industrial, community-led OAE models and stressed the need to weigh social costs and benefits, especially amid climate urgency.
The potential of wastewater treatment on carbon storage through ocean alkalinity enhancement
Authors: Li-wen Zheng, Yubin Hu, Bei Su, Qian-ying Chen, and Jihua Liu
Synopsis: This study showed that wastewater-based Ocean Alkalinity Enhancement using olivine significantly boosts alkalinity and phosphate removal in lab settings. Olivine dissolved 20x faster in treated wastewater than in seawater. This approach could sequester an estimated 18.8 ± 6.0 Tg CO₂ annually, especially in the 20°N–60°N region, though long-term carbon storage stability remains uncertain.
Comparing the Effects of Information on Geoengineering Options Support Across Four Online Samples
Authors: Frederic Traylor, Steven Brechin, Rachael Shwom
Synopsis: Geoengineering offers potential solutions to mitigate climate change, but public awareness and support are limited. This study explores how different types of information impact public support for geoengineering, using basic and extensive descriptions of five methods: space mirrors, stratospheric aerosol injection, ocean fertilization, direct air capture, and afforestation. Results showed consistent effects in address-based, opt-in, and classroom samples, but the MTurk sample was unreliable. Findings suggest sampling quality influences previous study results, with MTurk being nonrepresentative.
Technoeconomic Potential for Carbon Mineralization with Enhanced Recovery of Critical Minerals in the Pacific Northwest
Authors: Joseph E. Jacobs, C. Heath Stanfield, Quin R. S. Miller, Matthew A. Villante, José Marcial, et al.
Synopsis: This study evaluates a novel CO2 mineralization and enhanced mineral recovery (CO2-EMR) technology aimed at extracting critical minerals from low-grade, previously uneconomical resources. Focused on the Josephine Ophiolite and Twin Sisters Dunite, both ultramafic sites in Northern California and Washington, the study shows rapid carbonation into magnesite and high nickel recovery. The findings were incorporated into a technoeconomic analysis, assessing the potential for large-scale implementation of CO2-EMR for mineral recovery and carbon sequestration.
Decreasing Hygroscopicity Slows Forsterite Carbonation under Low-Water Conditions
Authors: Bavan P. Rajan, Sebastian T. Mergelsberg, Mark E. Bowden, Kelly A. Peterson, Sarah D. Burton, Geoffrey M. Bowers et al.
Synopsis: This study explores the passivation effect in low-water conditions during the carbonation of forsterite (Mg2SiO4), crucial for CO2 storage strategies. In humid supercritical CO2, carbonation rates decrease after 10 hours, linked to reduced water film thickness and lower hygroscopic ion concentrations, such as Mg2+ and HCO3–. The presence of soluble amorphous magnesium carbonate (AMC) promotes thicker water films and faster carbonation, while the less soluble magnesite product results in thinner films and slower rates.
Assessment of soil erosion rates, carbon stocks, and erosion-induced carbon loss in dominant forest types of the Himalayan region using fallout-137Cs
Authors: Anu David Raj, Suresh Kumar, K. R. Sooryamol, M. Sankar & Justin George K.
Synopsis: This study evaluates soil erosion and carbon loss across forest types in the Himalayas using Fallout Radionuclide-137Cs. Mixed forests had the lowest erosion rates and highest soil organic carbon stock (SOCS), while degraded forests showed the highest erosion and carbon emissions. Dense canopy cover reduced erosion, and SOCS was inversely correlated with erosion rates. These results emphasize the importance of forest diversity and restoration in degraded areas for mitigating soil erosion, enhancing carbon sequestration, and improving ecosystem resilience.
Long-Term Carbon Sequestration and Climatic Responses of Plantation Forests Across Jiangsu Province, China
Authors: Yuxue Cui, Miaomiao Wu, Zhongyi Lin, Yizhao Chen and Honghua Ruan
Synopsis: This study quantifies the long-term carbon sequestration of plantation forests (PFs) in Jiangsu Province, China, from 1981 to 2019, highlighting their growing role in climate change mitigation. Using the BEPS model, the study found significant increases in gross primary productivity (GPP), net primary productivity (NPP), and net ecosystem productivity (NEP), suggesting enhanced carbon sequestration. Nitrogen availability, seasonal variations, and summer droughts were key factors influencing plantation productivity. These findings inform PF management in warm temperate climates undergoing afforestation.
WEB POSTS
It Could Be a $250 Billion Market, But Almost No One Is Interested (WSJ)
CO2 mineralization would see major benefits from EU integrating removals into EU (Carbon Pulse)
Carbon Removal Business Model Innovation (Carbon Removal Reset)
Carbon to Sea Co-Sponsors Workshop to Lay the Groundwork for African oCDR Road Map (Carbon to Sea Initiative)
Benchmarking the climate mitigation potential of BECCS (Euractiv)
Trump’s proposed budget cancels billions of dollars in infrastructure investments, environmental programs, research grants, and renewable energy projects (Renewable Energy World)
EU policy shift boosts hopes for hemp in carbon removal, but hurdles remain (Hemp Today)
Victory for Canada's Liberals a 'major boon' for CDR (Quantum Commodity Intelligence)
From ministers to mandate letters — Prime Minister Mark Carney’s first 100 days in office matters to carbon removal (Carbon Removal Canada)
How rock dust is used to fertilize farms, clean the air (GMA)
Why Investors Are Souring on This Once Red-Hot Climate Tech (Bloomberg)
The Engineering Mindset Part 7: Complex or Complicated? Achieving negative carbon emissions (The Chemical Engineer)
Texas Moves Closer To Gaining Authority Over Carbon Storage Wells (Carbon Herald)
Interview With Carbon Removal India CEO Asitava Sen On Scaling CDR In India (Clean Technica)
With new techniques, landowners shape forests for maximum carbon storage (The Maine Monitor)
Industry Involvement Crucial for Scaling CDR, Report Says (Carbon Pulse)
Interview: Biomass-based CDR will decarbonise US economy more effectively than corn, soy-based biofuel production (Carbon Pulse)
Biomass producers are ‘marking their own homework’, according to parliamentary report (Bioenergy Insight)
Liberal victory will have 'tremendous' impact on Canadian CDR, industry expert say (Carbon Pulse)
What lies beyond offsetting? (Trellis)
‘To meet our carbon removal target by 2050, we need 1,000 large plants!’ (Swiss info)
100 Days of Trump 2.0: Carbon Management and Negative Emissions (Climate Law)
Microplastics could be hampering the ocean’s ability to capture carbon (New Scientist)
What Indigenous Wisdom Can Teach Us About Carbon Removal (INC)
Sweco examines the potential of carbon dioxide removal methods through societal perspectives (Sweco)
Canadian PM proposes CBAM, expanded carbon removal policies (Quantum Commodity Intelligence)
Canada: a safe haven for carbon removal innovation in an uncertain world (The Carbon Curve)
Norden Completes Its First Voyage Powered By Carbon-Negative Biofuel (Carbon Herald)
Svante and Mercer International Advance Carbon Capture Project at Alberta Pulp Mill (ESG Today)
Canadian developer eyes forest carbon, biochar, compliance sales (Quantum Commodity Intelligence)
US non-profit to build data repository for ERW developers (Quantum Commodity Intelligence)
Sweeping US bill target Ag emissions, pushes government to adopt soil carbon sequestration (Carbon Pulse)
REPORTS
Securing American leadership on critical minerals (Carbon Removal Alliance)
Protecting and modernizing America's water infrastructure (Carbon Removal Alliance)
The Investment Readiness of Carbon Dioxide Removals in the UK - A Preliminary Assessment (Green Finance Institute)
Achieving Net Zero—CDR in Your Sustainability Strategy (Carbon Centric)
How to Create Long-Term Demand for Carbon Removal in the US (World Resources Institute)
UPCOMING EVENTS
(NEW) Sponsored CarbonX Info Session: Millions of USD for CDR and more! by OpenAir Collective | 06 May 2025 | Online
Bio-CO2 Use and Removal 2025 | 06 May 2025 | Helsinki, Finland
Is Mineralization the Answer to CDR's Scaling Challenges? by Institute for Responsible Carbon Removal | 06 May 2025 | Online
(NEW) Budget Hearing - U.S. Department of Energy | 07 May 2025 | US & Online
GGR Insights: Critical factors in financing GGR technologies from 2026 onwards | 07 May 2025 | Online
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
Scaling Durable CDR: Challenges, Opportunities, and the Role of Standards by Sylvera and CDR.fyi | 08 May 2025 | Online
(NEW) EU Carbon Removal and Carbon Farming Certification – Draft methodology on Agriculture and Agroforestry on Mineral Soils | 08 May 2025 | Online
Mastering carbon removal procurement—How to design effective RFPs and secure high-quality carbon removal by Supercritical | 08 May 2025 | Online
(NEW) Carbon Dioxide Removal: Key Trends in Engineered Removals by cCarbon | 13 May 2025 | Online
Carbon Management Americas Conference | 13-15 May 2025 | Denver, Colorado
(NEW) EU Carbon Removal and Carbon Farming Certification — Draft Methodology on Peatland Rewetting | 13 May 2025 | Online
(NEW) EU Carbon Removal and Carbon Farming Certification – Draft methodology on the Planting of Trees | 15 May 2025 | Online
UPTAKE webinar series on CDR | 14 May 2025 | Online
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
The State of CDR Tech: What’s Next in Digital MRV? by Isometric | 19 May 2025 | New York
PGR and ECR Biochar Seminar by The Biochar Demonstrator | 19 May 2025 | United Kingdom
(NEW) How to finance large-scale deployment of carbon farming? by EU | 20 May 2025 | Online & Brussels
The Global Business Summit Accelerating Gigaton-Scale CDR by Carbon Unbound | 20 & 21 May 2025 | New York
(NEW) 2025 Carbon Removal Challenge Final Showcase Broadcast by OpenAir Collective | 21 May 2025
Workshop: Perspectives on a Purchasing Programme for CRCF Permanent Carbon Removal Credits by EU | 21 May 2025 | Online
(NEW) Quarterly CDR Policy Update with remove: CDR funding by CDR Gap | 22 May 2025 | Online
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
(NEW) Carbon Connect presents: Beyond Signatures — Mastering Carbon Credit Contracts for Corporate Buyers and Suppliers by Ceezer | 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
Carbon Clean-up Camp | 25 June 2025
(NEW) 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)
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) 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
(NEW) Climate Technology Show by Excel London | 01-02 October 2025 | UK
India's Carbon Removal Summit by Alt Carbon | 05 October 2025 | Bengaluru, India
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 OPPORTUNITY
Analytics Engineer at Klimate | Copenhagen
"Klimate provides access to high-quality, innovative, and verifiable carbon removal solutions aligned with science. We’ve successfully helped businesses remove tonnes of CO2 from the atmosphere."
Impact Accounts Intern at Ceezer | Berlin
"CEEZER is a digital platform providing companies with easy, secure, and direct access to high-quality projects from the entire voluntary carbon market."
Lead Mechanical Engineer at 44.01 | UAE
"44.01 eliminates CO2 by turning it into rock. Our pioneering technology accelerates the natural process of CO2 mineralisation to remove captured CO2 permanently in less than 12 months."
Global Head of CDR Carbon Credit Sales at Emral Carbon | Remote
"Emral Carbon is a leading provider of expert brokerage, capital raising and legal services in relation to carbon markets and carbon dioxide removal."
Forest Technician at Chestnut Carbon
"Chestnut Carbon, a nature-based carbon removal developer, operates high-quality U.S. forestry projects that meet the most rigorous Gold Standard® verification criteria."
Storage Site Engineer at Graphyte | Remote
"Combining photosynthesis with practical engineering, Graphyte’s Carbon Casting technology provides an immediate pathway for billions of tons of low-cost, durable carbon removal."
VP of Deployment at Terradot | São Paulo
"Terradot's mission is to stabilize Earth’s climate by transforming nature’s most powerful permanent carbon removal process into a global climate solution."
Director of Communications at Carbon180 | Washington, DC
"Carbon180 is a new breed of climate NGO on a mission to reverse two centuries of carbon emissions."
Director of Finance at Avnos | Los Angeles
"By design, Avnos is the world’s best shot to get to gigaton scale of carbon dioxide removal from direct air capture."
Founders Office - Product Manager at Alt Carbon | Bengaluru, Karnataka, India
"Alt Carbon is a climate action company on a mission to capture vast amounts of CO2 from our atmosphere."
Looking for your dream job in CDR? There are 712 jobs available *right now*: check them all out at:
PODCASTS
The Power of Rock Weathering | GreenTruth
"The IPCC has stated that by 2050, we must remove 10 to 17 billion tonnes of CO₂ every year to stay on track with climate goals. Enhanced Rock Weathering (ERW) has the potential to contribute a significant share toward that target — and 2050 isn’t far away.
In this episode, we invited XinRan Liu from UNDO — one of the four global winners of the $5 million XPRIZE Carbon Removal competition — to help us explore how Enhanced Rock Weathering works. ERW is a natural process where rainwater interacts with silicate rocks, locking away CO₂ permanently over geological timescales.
Enhanced Rock Weathering taps into these natural mechanisms, but boosts their efficiency. XinRan explains how existing global industries, like construction aggregates, already crush massive amounts of silicate rock — making it more energy- and cost-efficient to repurpose these byproducts for scalable carbon removal."
"CDR is growing rapidly in APAC," Alvin Lee, Puro.Earth Head of Supply | Carbonsations
"In this episode, Alvin Lee, Head of Supply at Puro.earth, talks about the rapid growth of carbon removal in the APAC region, with the emerging sector seeing all-around support from policy, finance, supply and demand. This year, Puro.earth is hosting the 2025 APAC CDR Summit in Singapore, where all stakeholders will be able to engage in conversations about the future of carbon removal."
The Future of Carbon Removal: Is the hype gone? Discussion with co-founder of remove - Marian Krüger | SustainNOW Podcast - Exploring Climate Solutions with Innovators and Entrepreneurs
"In this conversation, Friederike and Marian Krüger delve into the intersection of climate technology and entrepreneurship, exploring Marian's journey from a background in basketball to becoming a key player in the carbon removal space. They discuss the founding of a drone-based photovoltaic diagnostic company, the lessons learned from its exit, and the transition to focusing on carbon dioxide removal (CDR) methods. The conversation highlights the importance of various CDR technologies, the potential of the Global South in carbon removal, and the market dynamics surrounding this emerging industry. We also touch on the implications of political changes and the future of carbon removal in the context of sustainability and profitability, the evolving landscape of impact companies and the challenges faced by startups in the carbon removal sector."
Leo Inspired Me, with Tito Jankowski | Money Tales
"When people talk about climate change, they’re focused on saving the planet. This episode of Money Tales is about the economic possibilities that addressing climate change can open. Our guest this week is Tito Jankowski. For Tito, climate change isn’t just a crisis, it’s one of the biggest opportunities of our time. When he looked at the scale of carbon removal needed, he saw a trillion-dollar industry on the horizon. Tito realized this global challenge could be a launchpad for innovation, impact and massive business growth. It’s about shifting from fear to possibility—and building the future we actually want to live in.
Tito Jankowski is the CEO and founder of AirMiners.
AirMiners has helped accelerate 200 carbon removal startups, collectively raising $200 million and selling $93 million in carbon removal. One of AirMiners’ graduates, CarbonRun, was recently featured on the cover of the New York Times."
Decoding the latest from SBTi with Alex Schmidt | What goes up, must come down
"In this episode, host Simon Bager (PhD) sits down with Alex Schmidt from Normative to talk about the Science Based Targets initiative’s (SBTi) proposed updates and what they could mean for corporate net-zero strategies. From tightening rules around Scope 3 emissions to the growing role of Beyond Value Chain Mitigation (BVCM), they explore why early investment in carbon removal is becoming more important — and more strategic — than ever. Tune in to understand what’s changing, and why it matters."
EU ETS: Is this the most important consultation of the year? | The CDR Policy Scoop
"It's out: the European Commission published a consultation to gather feedback on what the world's largest emission trading system - the EU ETS - should look like after 2031.
For carbon removals, integration into the EU ETS represents one of the most promising paths to predictable demand at scale. Whether and how that will happen is still up for debate.
A unique opportunity to get involved with such a crucial legislative process from the get-go.
Join Eve Tamme and Sebastian Manhart for a punchy 30-min discussion that dives into the consultation, its implications, and what a potential call to action for the CDR industry could look like."
YOUTUBE VIDEOS
European Carbon Removal Policy in 2025: The Trailblazers Moving CDR Forward | Carbonfuture
'The webinar discussed how key policies across Europe are shaping the carbon removal market and how trailblazers like Germany, Switzerland and the European Union are helping to drive demand, scale supply, and define market rules.
Watch to gain insights into the latest policy shifts within the European Commission and incubators across the continent, and what these potentially mean for corporate buyers and CDR suppliers. The webinar also examines how compliance frameworks, government incentives, and procurement policies are helping scale the carbon removal industry and sparking long-term market growth.'
AirMiners graduates win $50M XPRIZE | Tito - AirMiners
This climate startup is turning forgotten plants into buried treasure | Sinkco Labs
"Sinkco Labs is Biomass Carbon Storage and Removal company that harnesses the power of the terrestrial biosphere and marine sediment."
Pink Rocks & Blue Oceans: Scaling Carbon Removal with Blusink | Megan Kjar
"Anjana shares her powerful journey from climate science and Antarctic expeditions to startup life and sustainable innovation. We explore how Blusink's pink carbon rocks mimic nature’s own carbon-capturing process—and why this solution could be a game-changer for ocean health and the future of climate tech.
We also unpack the complexities of the carbon credit market, challenges around accreditation, and how startups like Blusink are scaling with limited resources but boundless determination."
Can Nature Solve Carbon Removal? Inside AirZyme’s Bio-DAC Revolution | Theia Ventures
"In this episode of The Unheated Podcast, we talk with Roshan Pursharifi, Co-Founder and CEO of AirZyme, about a bold new approach to carbon removal that’s fast, efficient, and inspired by nature.
AirZyme, a Sweden-based company, has developed Bio-Direct Air Capture (Bio-DAC) technology mimics how our lungs process gases, using enzymes to pull CO₂ straight from the air. It’s low-energy, low-cost, and built to scale, a sharp contrast to the heavy, expensive traditional DAC systems. With a 1,000-ton pilot targeted for 2027 and multi-megaton ambitions by 2035, AirZyme is on a mission to make carbon removal mainstream.
In this conversation, we cover:
1. Why traditional DAC needs a rethink, and how Bio-DAC changes the game
2. Cracking the $100/ton cost barrier
3. Building demand for carbon removal without obvious commercial returns
4. Bringing nature-based tech to emerging markets
5. Navigating the hard realities of scaling and fundraising in climate tech
6. The milestones that will define AirZyme’s success
Roshan shares how his journey from chemical engineer to climate entrepreneur fuels AirZyme’s drive to fight climate change, and what it will take for Bio-DAC to make a real dent in global emissions."
Felix Harteneck, Founder and CEO of InPlanet at Web Summit Panel Clean, Green and Ready to Scale | InPlanet
"This panel, titled "Clean, Green, and Built to Scale," dives into how InPlanet uses enhanced rock weathering to deliver verifiable and permanent carbon removal. Learn how this nature-based solution leverages mine waste and farmland to accelerate CO2 drawdown in just a few years, not millennia."
Don Coyne & Melissa Rebbeck: Overcoming Barriers to Sustainable Innovation | Biochar Today
'In this episode of The Biochar Show, host Meghan K. Lees engages with Don Coyne (CEO, Australia New Zealand Biochar Industry Group) and Melissa Rebbeck (Board Chair, Australia New Zealand Biochar Industry Group), leaders in the biochar and sustainability sector. They discuss the evolution of biochar, its applications in agriculture, the challenges faced in the market, and the importance of policy and investment in scaling biochar production. The conversation highlights personal journeys into the biochar industry, advancements in technology, and the potential of biochar to significantly reduce carbon emissions and improve soil health. The episode concludes with advice for those looking to enter the biochar sector and a look at the future of biochar in Australia.'
Weekly Carbon Removal Updates from 28 April - 04 May 2025 | Carbon Removal Updates Bulletin
DEADLINES
Carbon Direct issued an RFP for 200–300kt CDR by 2030 | Deadline: 14 May 2025
Call for Proposals—Tencent launched global CarbonX program 2.0 to accelerate climate tech innovation including CDR | Application Deadline: 31 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
(NEW) 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.
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
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
(NEW) 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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