CARBON REMOVAL WEEKLY SUMMARY (12 MAY - 18 MAY 2025)—WEEK#20
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. 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
NEWS: Climeworks announced plans to cut about 10% of its roughly 500-person workforce, citing “economic uncertainty” and a slowdown in climate tech markets. The layoffs come on the heels of media reports that Climeworks’s two flagship Iceland DAC plants—Orca (max capacity ~3,000 t/yr, delivered <1,000) and Mammoth (~36,000 t/yr, delivered ~105 net)—have significantly underperformed against advertised CO₂ removal targets.
Read reactions from Climeworks co-founder Jan Wurzbacher, climate scientist Cyril Brunner, policy analyst Glen Meyerowitz and energy consultant Jack Andreasen.
CDR JOBSCAPE: A new series of renderings by Third Way show how America can combine nascent CDR approaches with its legacy industries to create durable jobs for everyday Americans, improving local communities, and solidifying the US' place as a global leader in technological innovation.
RESEARCH PAPER: New research suggests we could trap 18 billion kilos of CO₂ annually by tweaking wastewater treatment—adding alkaline rocks like olivine before it hits the ocean. Notably, olivine dissolves over 20 times faster in treated wastewater than in seawater. Read the summary here.
CDR PREPRINT SERVER: CarbonPlan launched CDRXIV, an open-access preprint server and data repository for carbon dioxide removal research. Hear more about the project in their interview on the Reversing Climate Change podcast.
FUNDING OPPORTUNITY—Horizon Europe announced new funding calls: one on Ocean Alkalinity Enhancement, open until 16 September, and another on Direct Air Capture, launching on 16 September.
CO₂ FILTER GIGAFACTORY: Svante has opened the world’s first gigafactory for carbon capture filters in Burnaby, BC. The Redwood facility can produce enough filters to capture 10M tons of CO₂ per year—equal to 27M cars off the road.
Read on to unpack more updates:
COMMERCIAL NEWS
Riverse raised €5M to expand its carbon crediting platform for engineered CDR (Riverse)
Carbon Cell secured £1.2M to scale biochar-based foam that locks CO₂ (Sustainable Times)
Occidental & ADNOC’s XRG may co-develop a Texas DAC hub, targeting 500,000 tCO₂/yr (OXY)
Svante launched the world’s first carbon capture filter gigafactory in BC, aiming for 10M tCO₂/yr (Business Wire)
Scotiabank’s 2025 fund will back CDR projects with CAD $25K–$100K (Opportunity Desk)
Microsoft announced to buy up to 18M tCO₂ of nature-based removal credits from Rubicon Carbon (ESG Today)
Mati Carbon secured JPMorgan debt financing to scale ERW in India & Sub-Saharan Africa (ESG news)
Capgemini signed CDR offtakes for 29.5 ktCO₂ via Climeworks and Charm Industrial (Carbon Herald)
Varhad will sell 6,000 CDR credits from its 2nd biochar site to Carbonfuture (LinkedIn)
NativState verified its ACR 801 forestry CDR project in the Ozarks & Ouachitas (Carbon Herald)
The Carbon Removers picked Isometric to register 50,000 tCO₂/yr stored beneath the North Sea (LinkedIn)
Neustark and Fehr partnered to decarbonize concrete in Alsace using carbon-storing tech (LinkedIn)
SLB Capturi & Heidelberg captured 1,000 tCO₂ at Norway’s Brevik plant; scaling to 400,000 t/yr (SLB Capturi)
Gevo planned to generate BECCS credits from its ND ethanol plant amid rising CDR demand (Carbon Pulse)
HUSK Ventures signed a long-term deal with atmosfair to sequester 20,000 tCO₂ via biochar (LinkedIn)
Residual & Isometric teamed up to bring high-quality biochar CDR credits to market (Carbon Herald)
RESEARCH PAPERS
Complex carbonate phases drive geologic CO2 mineralization
Authors: Nabajit Lahiri, Libor Kovarik, Sandra D. Taylor, Jarrod V. Crum, Eugene S. Ilton, et al.
Synopsis: Field-scale CO₂ mineralization in basalt reveals a newly identified cation-ordered ankerite phase that controls carbonation. Using electron microscopy, researchers mapped carbonate growth stages, improving understanding of subsurface processes and guiding future geologic carbon sequestration modeling.
Ground-Truth: Can Forest Carbon Protocols Ensure High-Quality Credits?
Authors: R. Sanders-DeMott, L. R. Hutyra, M. D. Hurteau, W. S. Keeton, K. S. Fallon, et al.
Synopsis: Most forest carbon credit protocols in North America—spanning improved management, reforestation, and avoided conversion—score poorly and lack robustness. Only one new, unused protocol was rated satisfactory. Without reform, current systems risk undermining climate goals.
Estimating medium-term (40 years) carbon uptake in living biomass from Life Terra's afforestation and reforestation actions: Challenges and recommendations
Authors: Jorge Palmero-Barrachina, Petr Blazek, Santi Sabaté, Teresa Sauras-Yera, et al.
Synopsis: This study estimates biomass and carbon accumulation over 40 years in European afforestation, focusing on timber plantations under the Life Terra project. Results show wide regional variation (54.7–232.6 t/ha by year 40), influenced by tree type, survival rates (22–49.7%), and local conditions. The method offers a robust, adaptable framework for carbon assessment, though further validation—especially for nontimber projects—is needed.
Hidden Acidification Challenges in Electrochemical Ocean Decarbonization
Authors: Wei Zhang, Adnan Ozden, Yu Yang, Aoni Xu, Fengwang Li
Synopsis: Electrochemical direct ocean capture (eDOC) faces key challenges: pH-swing processes leave treated seawater insufficiently neutralized, causing unintended acidification. This is due to imbalanced effects on carbon chemistry and precipitate formation. Improved process designs are needed to ensure eDOC’s environmental sustainability.
Carbon markets for carbon dioxide removal
Authors: Injy Johnstone,Sabine Fuss,Nadine Walsh &Robert Höglund
Synopsis: Scaling carbon dioxide removal requires major investment, with carbon markets key to unlocking funds. This article reviews current CDR trends in voluntary markets and explores future roles across compliance regimes. Though CDR use is limited today, strong fundamentals suggest markets can play a major role—if further developed.
How great will the demand for critical minerals be to meet the 2 °C and 1.5 °C goals? Insights from various technology deployment scenarios
Authors: Ayami Hayashi, Fuminori Sano & Keigo Akimoto
Synopsis: Meeting Paris Agreement goals risks critical mineral shortages—especially lithium, cobalt, and neodymium—if clean tech deployment relies heavily on EVs and renewables. Broader tech mixes, including hybrids and CDR, reduce demand pressures, supporting a more resilient energy transition.
Optimal spatiotemporal thinning schemes combined with wood vaulting could maximize the forest biomass carbon sink in China
Authors: Yongzhe Chen, Xiaoming Feng, Yuanyuan Huang, Shunlin Liang, Lijuan Wang, et al.
Synopsis: Integrating wood vaulting with strategic plantation thinning could boost China’s forest carbon sink by over 32% from 2020 to 2060 under varied emission scenarios, without reducing live biomass carbon. This optimized approach offers a promising pathway for China’s carbon neutrality and global climate mitigation.
The role of transaction costs for the optimal supply of carbon sequestration from cover crops in Denmark
Authors: Luiza M. Karpavicius, Katarina Elofsson, Gregor Levin & Arezoo Taghizadeh-Toosi
Synopsis: Transaction costs severely limit cost-effective carbon sequestration from cover crops in Denmark. At €220/tCO2e, adoption offsets just 15.4 tCO2e/year—0.002% of agricultural targets. Ignoring these costs overestimates supply by 13,030 tCO2e. Transaction costs can comprise up to 90% of total costs, shifting optimal sequestration across farms and regions.
Microbial Mechanisms of Carbon Sequestration Discrepancy between Broadleaf and Moso Bamboo Forests
Authors: Yaowen Xu, Chuping Wu, Jiejie Jiao, Liangjin Yao
Synopsis: Conversion of broadleaf forests to Moso bamboo reduces soil organic carbon (SOC) by 12.58% and shifts SOC composition—decreasing microbial-derived C and increasing plant-derived C. These changes are driven by soil pH, enzymes, and mineral properties. The findings highlight distinct carbon pathways and the potential for soil management to enhance carbon storage in bamboo forests.
Perspective on distributed direct air capture: what, why, and how?
Authors: Yuanke Chen, Ronghui Wu & Po-Chun Hsu
Synopsis: Distributed direct air capture can complement centralized systems but faces efficiency limits from energy-intensive sorbent regeneration. This study analyzes regeneration energy and carbon footprints across sorbents, emphasizing the need for full impact assessment.
Waste rice straw biochar recycled concrete: Carbon sequestration, durability and microstructure
Authors: Xuejin Ying, Xiao Zhao, Mao Ye, Cheng Wang, Baojian Zhan, Jianjun Zhao, Zixin He, Xiaoxiong Nie
Synopsis: Adding 5% waste rice straw biochar (WRSB) to recycled concrete (RC) and using CO₂ curing boosts carbon sequestration (24.66 g/kg) and compressive strength (37.74 MPa). It enhances durability, with 90.7% sulfate resistance and just 8.68% freeze-thaw strength loss.
Intensive oyster farming enhances carbon storage in sediments over decades
Authors: Xin Sun, Ramón Filgueira, Yihua Sun, Ming Han, Qisheng Tang & Yao Sun
Synopsis: Oyster farming boosts carbon storage by increasing organic carbon burial flux 2.6-fold (to 106 g C·m⁻²·yr⁻¹) over 50 years. Farming drives microbial necromass buildup and raises recalcitrant carbon from 42.52% to 60.19%, clarifying its role in ecosystem carbon budgets.
High-gravity intensified carbonation of larger steel slag particles: Dual-path CO2 mineralization and valorization in sustainable construction materials
Authors: Qifeng Song, Xinduo Li, Baojian Zhan, Tung-Chai Ling
Synopsis: This study showcases high-gravity (higee) carbonation of steel slag using a rotating packed bed, achieving rapid CO₂ sequestration and material reuse. The process cuts emissions (−6.8 kg CO₂-eq/ton), lowers energy use by 36–40%, and boosts mortar strength by 164.6%, offering a scalable, cost-effective solution for CO₂ utilization and slag upcycling.
Soil cation storage is a key control on the carbon removal dynamics of enhanced weathering-Preprint
Authors: Yoshiki Kanzaki, Noah Planavsky, Shuang Zhang, Jake Jordan, J Suhrhoff, Chris Reinhard
Synopsis: Enhanced weathering in US agricultural soils can store CO2 by increasing alkalinity, but carbon removal lag times range from years to decades, influenced by soil properties and management. Optimizing for faster carbon uptake may reduce total removal and affect nutrient use and N₂O emissions. This temporal disconnect challenges monitoring and verification of carbon removal via enhanced weathering.
WEB POSTS
The Stats of CDR in SBTi (CDR.fyi)
Swiss firm that captures carbon from air to cut workforce by more than 10% (The Guardian)
Geoengineers eye up ocean ‘dead zones’ for carbon storage (Dialogue Earth)
ZeroEx: Pioneering Enhanced Rock Weathering in Europe and Revolutionizing Carbon Dioxide Removal Verification Worldwide (Remineralize the Earth)
Between a Rock and a Hard Cost: The Economics of Enhanced Weathering (Counteract)
One shot. One Budget. Will the EU bet on carbon removal? (Carbon Gap)
United Bets on Photosynthesis and Limestone to Fuel Net-Zero Flight Path (WSJ)
How SAF mandates in the EU and UK are reshaping aviation fuel markets (Carbon Direct)
Guest Post – Beyond Emission Reduction: Why Heavy Industry Should Embrace Carbon Removal Now (ESG Today)
Malaysian Borneo field trials 2016-2025 (University of Sheffield)
Improving land-use emission estimates under the Paris Agreement (Nature Sustainability)
The Impact of BECCS Done Well on Drax (LinkedIn)
We are preparing several new EW experiments (Carbon Drawdown Initiative)
Climeworks’ capture fails to cover its own emissions (Heimildin)
What if carbon removal was priced by how long it lasts? (One Percent Brighter)
Puro.earth Biochar Methodology Update: Offstream’s Key Insights for Navigating the Preliminary Changes (Offstream)
Biogenic carbon in timber buildings – how should it be considered? (Ramboll)
8 direct air capture startups slashing carbon removal costs (Global venturing)
Integration of carbon removals in EU, UK ETS a big opportunity for North American developers, law firm says (Carbon Pulse)
EU Commission to release blueprint for carbon removals 'buyers club' (Carbon Pulse)
Crushed basalt used in roads could cut expensive fertiliser bills, trap carbon dioxide (ABC news)
Interviewing Jarvis about Exergy Destruction and CO2 Capture (XCaptureCO2)
How a House GOP Proposal Would Essentially Gut the IRA’s Biggest Tax Credits (Heatmap)
Climeworks won't fix the climate by 2030. That's exactly the point (LinkedIn)
Real-world testing proves Climeworks’ Gen 3 efficiency leap with Svante’s structured adsorbents (Climeworks)
One shot. One budget. Will the EU bet on carbon removal? (LinkedIn)
45Q Carbon Management Incentive Preserved In Latest Budget Proposal (Carbon Herald)
New machine transforms wood debris into biochar, aiding local farmers in Helene recovery (WLOS)
Administrator Zeldin Proposes to Approve Arizona’s Primacy Application for All Underground Injection Wells (EPA)
VM0047 Afforestation, Reforestation, and Revegetation, v1.1 (Verra)
EU revamps afforestation carbon removal certification methodology (Carbon Pulse)
REPORTS
Creating EU demand for Paris-aligned carbon dioxide removal credits (EUI)
Climate Change Committee advice on Wales’ fourth carbon budget (2031-35) (Welsh Government)
From risk to reward: Making the UK the carbon markets capital of the world (BeZero Carbon)
A CDR purchase commitment network for Switzerland (sus.lab | ETH Zurich)
The hidden state of the voluntary carbon market (Patch)
Visualizing Jobs in a Carbon Removal Economy (Third Way)
CORSIA: Market Developments and Forecast Scenarios (Allied Offsets)
UPCOMING EVENTS
(NEW) 2025 Annual Convening by Carbon to Sea Initiative | 19-21 May 2025 | Washington
How to finance large-scale deployment of carbon farming? by EU | 20 May 2025 | Online & Brussels
Landbased CDR Methods in Australia and Europe by Swiss CDR Platform | 20 May 2025 | Online
Staying ahead of updates to global reporting frameworks by Carbon Direct | 20 May 2025 | Online
(NEW) NYCDR Community Happy Hour: Carbon Unbound Edition!!! by Carbon Business Council | 20 May 2025 | New York
The Global Business Summit Accelerating Gigaton-Scale CDR by Carbon Unbound | 20 & 21 May 2025 | New York
(NEW) NCSA response - SBTi Corporate Net Zero Standard Consultation by WBCSD | 21 May 2025 | Online
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
2025 Carbon Removal Challenge Showcase Stream by OpenAir Collective | 21 May 2025
Public subsidies + carbon credits: the winning combo? by CDR Policy Scoop | 22 May 2025 | Online
(NEW) Implementing A Low Carbon Concrete Building Code in your City by OpenAir Collective | 22 May 2025 | Online
(NEW) [Open Climate] What the FOAK is going on? by Climate Drift | 22 May 2025 | Online
Quarterly CDR Policy Update with remove: CDR funding by CDR Gap | 22 May 2025 | Online
(NEW) A European CDR Purchasing Programme by CDR Policy Scoop | 27 May 2025 | Online
Unpacking Carbon Credits: The Power of Improved Forest Management by Cloverly | 28 May 2025 | Online
Carbon removals: What's real, what's hype and what's available by Calyx | 28 May 2025 | Online
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
(NEW) Nordic Carbon Removal Association launch: a blueprint for action | 03 June 2025 | Copenhagen
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
(NEW) The Business Case and Quality Assessments for NbS by Terrraformation | 04 June 2025 | Online
(NEW) Progress, Potentials & Pathways of Biochar in Europe by Biochar Summit 2025 | 10-11 June 2025 | Brussels, Belgium
(NEW) Negative Emissions Summit 2025 | 12 June 2025 | Brussels
(NEW) A taxonomy of policies to support carbon dioxide removal by CO2RE hub | 18 June 2025 | Online
(NEW) Buy in, Stand out: Your climate action starts with carbon removal by Carbon Removal Canada | 24 June 2025 | Ontario
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
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
(NEW) CDR Summit by Carbon Unbound | 21 & 22 October 2025 | London
(NEW) Enhanced weathering with agriculture for atmospheric carbon dioxide removal by The Royal Society | 17-18 November 2025 | Online
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JOB OPPORTUNITIES
Funded PhD Project—Carbon removal in pathways to Net Zero at the University of Manchester | 06 June 2025
"This PhD will explore how different CDR approaches — including engineered options like bioenergy with carbon capture and storage (BECCS), direct air capture (DACCS), and nature-based solutions — can be responsibly integrated into pathways to Net Zero. It will use an interdisciplinary approach (using quantitative and qualitative methods) to examine how the role of CDR evolves over time, under different assumptions about mitigation ambition, overshoot, equity, and feasibility. The research will engage with national and international policy contexts, drawing on integrated assessment model (IAM) outputs to explore trade-offs and policy levers for guiding strategies for near- and long-term deployment of CDR."
Full Stack Data Scientist at Isometric | London
"Isometric is the world’s most trusted carbon registry."
Solid Waste Engineer at Graphyte | Remote
"Graphyte is introducing the world’s first and only carbon dioxide removal solution that is durable, affordable, and immediately scalable."
Life Cycle Analysis Lead at InPlanet | Brazil
"InPlanet is a CDR startup headquartered in Germany and Brazil to reverse climate change and make tropical agriculture more regenerative, low-carbon, and sustainable
Head of Project Management & Deployment at Greenlyte | Essen
"GCT was founded in September 2022 with the ambition to develop a low-cost, robust Direct Air Capture technology that captures CO2 at world-leading energy rates, whilst supplying hydrogen as a by-product."
Project Accounting Associate – Carbon Project Delivery at Carbon Impact Partners | India
"Climate Impact Partners delivers solutions for climate action. We are carbon market specialists and a go-to partner for every stage of the net zero journey."
Technical Lead, Nature-Based Carbon Development at Invert | Ontario (Remote)
"Invert invest in projects that result in carbon credits being created, such as planting a forest or building a machine that sucks CO2 from the air. By selling these credits on to individuals or businesses, we are able to generate revenue that lets us make more investments in projects that reduce or remove CO2, and we continue the cycle!"
Project Engineer Pre-Treatment at SCW Systems
"At SCW Systems, we develop new ground-breaking technologies that convert waste into green energy and permanently remove CO₂ from the atmosphere. Our technologies are the most energy-efficient in the world and can be applied anywhere in a variety of sizes."
Demand Generation Manager at Carbon Cure | Canada (Remote)
"CarbonCure Technologies is a fast-growing carbon utilization tech company deploying easy-to-adopt solutions that enable concrete producers to use captured CO₂ to produce reliable, lower carbon concrete mixes."
Looking for your dream job in CDR? There are 672 jobs available *right now*: check them all out at:
PODCASTS
Can we bank on Canada’s new PM to deliver carbon promises? - with Na'im Merchant | The CDR Policy Scoop
"Against all odds, the Liberal Party just won the Canadian general elections. Mark Carney’s party explicitly campaigned to turn Canada into a global leader in carbon dioxide removal.
Canada plans to do so by - among other things - extending its investment tax credit to 2035, supporting a broad range of CDR tech, and introducing dedicated CDR targets for 2035 and 2040.
This all sounds incredibly promising. But will Canada be able to realise this ambition?
No better person to answer this question than Na'im Merchant, Executive Director of Carbon Removal Canada, an organisation that has been instrumental in raising the profile of CDR in Canada over the last two years.
Na’im joins co-hosts Sebastian Manhart and Eve Tamme for a fast-paced, 30-minute session that gets right to the heart of the debate."
Carbon Capture and Utilisation (CCU) | OIES Podcast
"In this podcast, Hasan Muslemani speaks to Nnaziri ihejirika about carbon capture and utilisation (CCU) as a carbon management tool and its role in the energy transition. The podcast discusses different definitions of CCU and of emerging carbon utilisation pathways, including biochar production, manufacture of concrete and aggregate materials, and production of e-fuels and e-chemicals. The podcast also highlights issues around storage permanence and interactions with CCS and carbon removal developments."
CDR Policy Deep Dive - Part 2: The Landscape Today | The Carbon Removal Show
"In the second of our three-part deep dive, we plunge into the murky, acronym-rich depths of carbon removal policy across the UN, the EU, the US and beyond - and we promise to come up for air, eventually."
Is a Lack of Open Science Holding Carbon Removal Back?—w/ Freya Chay & Tyler Kukla of CDRXIV & CarbonPlan | Reversing Climate Change
"Advisory Board to CDRXIV) and Tyler Kukla (a CDR Research Scientist at CarbonPlan and the Content Manager for CDRXIV) are on the show to explain how pre-print servers drive progress in other scientific fields, why CDR needs one, and how it may change our industry."
Remedies for Impact’s original sins + Carbon removal's moment in the... dirt | This Week in Impact
"Host Brian Walsh takes up ImpactAlpha’s top stories with editor David Bank. Up this week: Two views on the future of impact investing from Calvert Impact and Innovative Finance Initiative. Temasek makes the case for the private equity opportunity in climate adaptation and resilience (09:10). And, how Mati Carbon plans to leverage its $50 million X-Prize to remove carbon and support farmers in tropical zones (14:15)."
"BECCS is the way forward," Greg Stangl, Phoenix Energy CEO | Carbonsations
"For this episode, we are joined by Greg Stangl, CEO of Phoenix Energy, a company focused on removing CO2 from the atmosphere, while also generating energy for local communities. Phoenix Energy is among the earliest adopters of biochar, and today uses both biochar and BECCS (bioenergy with carbon capture and storage) to fight the climate crisis."
Can the oceans solve our carbon removal problems? | Future Tense
"There's been growing research and investment in projects that use the oceans to artificially remove carbon dioxide from the atmosphere. Such techniques involve both a biological and a chemical approach.
To date, carbon removal technologies have been largely land-based, using giant air-purification machines, or planting trees to consume and store carbon. Those efforts have struggled to gain scale and acceptance. So, will a marine-based approach make any difference? It's a controversial idea and not without its difficulties."
The Price of NetZero: Why Carbon Markets Matter for CDR? | Co₂ming Clean
"What will it truly take to reach net zero and what role do carbon markets play in getting us there, especially when it comes to carbon dioxide removal (CDR)?In this episode, Anna and Adrian are joined by Sebastian Manhart, Senior Policy Advisor at Carbonfuture, to explore how economic and policy frameworks can accelerate the scale-up of durable climate solutions.Together, they unpack:
• Why carbon markets are essential to advancing CDR
• How permanent removals link to net zero targets
• Which instruments and policies are driving real progress
• What gaps remain—and how we can close themWhether you're a climate policy expert, carbon market participant, or simply CDR-curious, this conversation offers clear insights into one of the most complex (and crucial) pieces of the net zero puzzle."
YOUTUBE VIDEOS
(Re-)Loading the XXL Lysimeters (Project Carbdown) | Dirk Paessler
"Welcome to project carbdown! Three years ago we set up the XXL lysimeter project in Fürth Germany. We wanted to measure the enhanced weathering of basalt rock dust on soil, a promising solution to the climate crisis.
Unfortunately we found that the soil of this field did not cooperate. To the contrary, here we have found a soil which does not seem to support timely enhanced weathering at all as measured by leachate alkalinity - at least with the basalt we used. We call this soil the cat-ion eating monster soil."
How capturing CO2 from seawater could help clean the air | REUTERS | Reuters
"A trial is underway on England’s south coast, where scientists are harnessing the ocean’s natural power to extract CO2 from seawater, which is absorbed from the atmosphere."
285 million tons per year by 2030 | Tito - AirMiners
Biochar: A Silver Bullet for Carbon Removal? | The Utopia Podcast
"In this episode I speak with Tom Previte and his company, Restord, a pioneering start-up which is creating biochar as a carbon removal method in Cornwall.
We discussed some of the benefits and issues associated with scaling up biochar carbon removal projects as part of the UK’s net zero journey. We also discussed the controversies surrounding corporate purchases of carbon removal credits and the associated carbon offsetting claims."
Vaulted Deep, runner up of the XPRIZE Carbon Removal Competition, joins NYSE Floor Talk | New York Stock Exchange
"Vaulted Deep, a U.S.-based waste management company, earned recognition as second runner-up and $8M for permanently storing otherwise unusable organic waste deep underground. (Souce: XPRIZE)"
Meet Aircapture: How Direct Air Capture Turns CO₂ from a Climate Threat into a Global Resource | Aircapture
"At Aircapture, we design and deploy modular Direct Air Capture (DAC) technology that pulls CO₂ straight from the air — and puts it to work. We are proving that carbon removal isn’t a future promise. It’s running. Right now.
Founded by Matt Atwood, a chemist-physicist turned climate tech entrepreneur, Aircapture exists to do something useful with CO₂. We’re solving real problems for real customers — beverage companies, agriculture tech, carbon sequestration projects — by delivering on-site CO₂ that’s clean, reliable, and cost-competitive."
Upgrading Carbon Accounting for a Net Zero World | Institute for Responsible Carbon Removal
"The science is clear — Reaching net zero will require us to lower emissions as much as possible and remove the rest from the atmosphere. Achieving this means developing and scaling the necessary technologies for both emissions reductions and negative emissions, starting today. However, in their existing form, life cycle assessment (LCA) methods struggle to differentiate when a climate project is shrinking the amount of net emissions reaching the atmosphere or drawing them down out of the atmosphere. Without this specificity, there’s a real risk that the climate benefits being delivered are overstated, and that negative emissions are not provided the resources needed to reach critical scale.
The solution is an updated approach to carbon accounting called emissions flux models. Emissions flux models are designed to match the planet’s carbon cycle, allowing them to assess the benefits of a climate project based on what actually matters: the net change in emissions in the atmosphere. The Absolute Carbon Standard is the first accounting standard that utilizes these models, allowing project claims to match their atmospheric impacts."
Is Mineralization the Answer to CDR's Scaling Challenges? | Institute for Responsible Carbon
"CDR suppliers far outnumber CDR buyers, with the vast majority of CDR purchases resulting from Microsoft. In order to meet the goals of the Paris Agreement, the CDR industry needs to scale to 10 gigatonnes of removals per year by 2050. In order to scale, recent opinion has been that a massive shift is needed in the CDR market. Arca posits that we need to leverage the scale of existing industries such as mining. There is a multibillion-dollar opportunity for the mining industry, and an opportunity to scale for the CDR industry, so a partnership between the two industries is advantageous to both parties. The mining industry is adept at moving material at the gigatonne scale, have existing infrastructure and decades of data and research which can all be leveraged for CDR. CDR as a whole may have challenges towards scaling, but mineralization may be unique out of the existing pathways in having a clear solution to this problem."
Sponsored Carbon Removal Challenge Info Session: CarbonX -Millions of USD for CDR and more! | OpenAir
"We were joined by Dr. Xinwo Huang, Senior Director at Tencent, and Tencent Business Analysis Manager Dr. Safina Huang, who will introduced Tencent’s unique funding CarbonX Program 2.0, which will provide millions of grants for CDR projects. Submissions are due at the end of May, so watch to learn about this program and see them answer questions about how best to prepare your materials for success. We think this is an incredible opportunity for the OpenAir community, not just Carbon Removal Challenge teams."
GGR Insights: Critical factors in financing GGR technologies from 2026 onwards | CO₂RE - The Greenhouse Gas Removal Hub
"The webinar draws on the CO2RE Hub's research on business models and includes reflections from those involved in project development and finance."
Weekly Carbon Dioxide Removal Updates from 12 May - 18 May 2025 | Carbon Removal Updates Bulletin
DEADLINES
(NEW) Funding Opportunity—Scotiabank’s 2025 fund will back CDR projects with CAD $25K–$100K | Deadline: 22 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
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.
(NEW) 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
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) 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
(NEW) 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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