Enhanced weathering with agriculture for atmospheric carbon dioxide removal

Discussion meeting organised by Professor David Beerling FRS, Professor Rachael James, Dr Noah Planavsky and Dr Christopher Reinhard
This meeting will discuss advances and uncertainties in terrestrial enhanced weathering, a key carbon dioxide removal strategy for climate change mitigation. Recent discoveries and R&D investment are accelerating the prospect of large-scale EW implementation, but uncertainties remain. The goal of this meeting is to provide a much-needed balanced discussion on the scientific and societal challenges ahead.
Programme
The programme, including speaker biographies and abstracts, will be available soon. Please note the programme may be subject to change.
Poster session
There will be a poster session from 17:00 on Monday 17 November 2025. If you would like to present a poster, please submit your proposed title, abstract (up to 200 words), author list, and the name of the proposed presenter and institution no later than 19 October 2025.
Attending the event
This event is intended for researchers in relevant fields.
- Free to attend
- Both virtual and in-person attendance is available. Advance registration is essential. Please register via Eventbrite for a ticket
- Lunch is available on both days of the meeting for an optional £25 per day. There are plenty of places to eat nearby if you would prefer purchase food offsite. Participants are welcome to bring their own lunch to the meeting
Enquiries: Scientific Programmes team.
Image credit: ©️David Beerling
Schedule
Chair

Professor David Beerling, University of Sheffield, UK

Professor David Beerling, University of Sheffield, UK
Professor David Beerling FRS is the Sorby Professor of Natural Sciences and Director of the Leverhulme Centre for Climate Change Mitigation, a newly established Research Centre funded by the Leverhulme Trust.
09:00-09:05 |
Welcome by the Royal Society and lead organiser
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09:05-09:30 |
Talk title TBC
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09:30-09:45 |
Discussion
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09:45-10:15 |
EW and agriculture in China
![]() Dr Tongtong XuNorthwestern Polytechnical University, China ![]() Dr Tongtong XuNorthwestern Polytechnical University, China Dr Tongtong Xu, a postdoctoral fellow at the School of Ecology and Environment, Northwestern Polytechnical University, specializes in soil carbon sequestration and global change. Her research focuses on Biological/Ecological Carbon Capture, Utilization, and Storage (Bio-CCUS/Eco-CCUS) strategies for enhancing soil carbon sequestration. Her research group conducts nationwide field experiments exploring Enhanced Rock Weathering (ERW) applications in Chinese plantation forests across multiple climatic regimes. This research aims to comprehensively assess the effects of ERW on forest ecosystems by examining silicate weathering-driven pedogenic carbonate formation, soil organic carbon sequestration and stabilization, tree growth and root phosphorus-acquisition strategies, greenhouse gas emission and ecosystem multifunctionality. The research findings have been published in Global Change Biology, Communications Earth & Environment and Journal of Environmental Management. |
10:15-10:30 |
Discussion
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10:30-11:00 |
Break
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11:00-11:30 |
EW and rice agriculture in India
![]() Mr Shantanu AgarwalMati Carbon PBC, US ![]() Mr Shantanu AgarwalMati Carbon PBC, US Shantanu Agarwal is the Founder and CEO of Mati Carbon, a climate-tech company advancing Enhanced Rock Weathering (ERW) for durable carbon dioxide removal. An alumnus of IIT (Chemical Engineering) and Harvard Business School, Shantanu brings over 20 years of experience across the energy, corporate, and development sectors. He previously co-founded Sustaera, a Direct Air Capture (DAC) company. At Mati, he is pioneering large-scale ERW deployments across India and sub-Saharan Africa, targeting both carbon removal and improved farm productivity for smallholder farmers. Mati’s scientific approach is anchored in collaboration with institutions such as Yale and IIT Kanpur, where the team continues to develop and refine methodologies for MRV (Measurement, Reporting, and Verification) of carbon sequestration. In 2025, Mati was awarded the $50M XPRIZE for Carbon Removal—becoming the first Global South-focused project to receive the grand prize—recognizing its potential to combine scalable climate impact with equitable adaptation. |
11:30-11:45 |
Discussion
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11:45-12:15 |
Co-deployment of EW and reforestation
![]() Dr Bonnie WaringImperial College London, UK ![]() Dr Bonnie WaringImperial College London, UK Dr Bonnie Waring is an ecosystem ecologist and Reader at Imperial College London. She leads the Waring Ecology Lab, whose members examine ecological controls on the exchange of carbon among plants, soils, and the atmosphere. Dr Waring’s recent research has explored nature-based solutions for climate change mitigation, and she serves as an advisor on this topic to philanthropic organizations and corporations such as Nestle. She received her PhD in Ecology from the University of Texas at Austin in 2013 and was an Assistant Professor of Biology at Utah State University, prior to joining Imperial College in 2020. |
12:15-12:30 |
Discussion
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13:30-14:00 |
EW and Brazilian agriculture
![]() Dr Jonathan OjedaTerradot, Argentina ![]() Dr Jonathan OjedaTerradot, Argentina Dr Ojeda is a Science & Technology Executive with 15+ years of experience in environmental modeling, carbon removal, and sustainable agriculture. As Science Operations Lead at Terradot, he developed and scaled a soil carbon MRV platform to support ERW, leading the scientific work that helped secure Terradot’s Series A funding and major offtake agreements. His work integrates field protocols, remote sensing, GIS, and advanced modelling using MIN3P and APSIM to quantify inorganic and organic carbon at multiple scales. A widely published researcher in leading international journals, Dr Ojeda has developed open-source data tools and led multi-continent research teams under initiatives funded by the Gates Foundation, DOE, and CSIRO. He combines field expertise across 9 countries with deep modelling and programming skills in Python, crop/soil systems, and satellite data, bridging academia and carbon markets. His research targets uncertainty quantification, C sequestration, and land-use efficiency to accelerate science-based climate solutions. |
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14:00-14:15 |
Discussion
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14:15-14:45 |
EW and CDR rates challenges and progress
![]() Dr Tim Jesper SuhrhoffYale Center for Natural Carbon Capture, US ![]() Dr Tim Jesper SuhrhoffYale Center for Natural Carbon Capture, US Jesper is an isotope geochemist with a strong interest in both natural and enhanced silicate rock weathering. During his PhD, he applied multiple isotope systems to investigate how silicate weathering processes responded to past climate changes. His current research explores how—and to what extent—this natural carbon removal pathway can be accelerated to draw down more CO₂ from the atmosphere. Jesper develops and applies innovative methods, integrating soil, water, and model-based approaches to quantify CO₂ removal in enhanced weathering field trials. He also works with existing datasets to address key challenges in enhanced rock weathering, such as lag times between weathering and CO₂ sequestration, strategies for aggregating deployments to overcome signal-to-noise issues, the role of strong acid weathering, and the behaviour of initial weathering rates. Jesper enjoys working at the interface of geochemistry and climate solutions, bringing curiosity, scientific rigor, and a collaborative spirit to one of the most urgent challenges of our time. |
14:45-15:00 |
Discussion
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15:00-15:30 |
Break
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15:30-16:00 |
EW and net zero chocolate
![]() Miss Issi SteeleyLeverhulme Centre for Climate Change Mitigation, UK ![]() Miss Issi SteeleyLeverhulme Centre for Climate Change Mitigation, UK Issi is a PhD student studying the application of enhanced weathering within the cocoa industry. She joined the Leverhulme Centre for Climate Change Mitigation in 2023 on a BBSRC Industrial Case award between the University of Sheffield, Yale University and Mondelez International. She is supervised by Professor David Beerling FRS, Dr Dimitar Epihov, Dr Noah Planavsky and Dr Clare Stirling. |
16:00-16:15 |
Discussion
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16:15-16:45 |
Co-benefits, environmental risks, and monitoring requirements of EW
![]() Dr Stephanie GrandUniversity of Lausanne, Switzerland ![]() Dr Stephanie GrandUniversity of Lausanne, Switzerland Stephanie is a soil scientist broadly interested in pedogenesis and soil biogeochemistry. She obtained her PhD in Resource Management and Environmental Studies at the University of British Columbia, Canada in 2011. Following postdoctoral work on the carbon balance of bioenergy plantations at Michigan State University, she joined the University of Lausanne as a pedologist in 2015. She teaches several courses in soil science and the geology of the Earth surface. Her research group focuses on topics such as incipient soil formation in newly deglaciated terrain, impacts of agricultural management practices on organic matter dynamics and organo-mineral interactions, and relations between weathering processes and soil properties. |
16:45-17:00 |
Discussion
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17:00-18:15 |
Poster session
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Chair

Professor Rachael James
University of Southampton, UK

Professor Rachael James
University of Southampton, UK
Rachael James is Professor of Geochemistry and Director of the NERC IGNITE Doctoral Landscape Award in the School of Ocean and Earth Science at the University of Southampton, UK. She is renowned for the development and application of novel chemical and isotopic techniques to improve understanding of ocean and earth processes and to address critical environmental and societal challenges. As part of the Leverhulme Centre for Climate Change Mitigation she leads the development of methodologies for removing CO2 from the atmosphere by enhanced rock weathering. Rachael serves on the scientific advisory councils of the GFZ Helmholtz Centre for Geosciences and the multi-institute research mission Marine Carbon Sinks in Decarbonisation Pathways and is a member of the awards committee of the European Association of Geochemistry (EAG). She was awarded a Philip Leverhulme Prize in 2006, an EAG Distinguished Lectureship in 2014 and was the Marie Tharp Lecturer in 2022.
09:00-09:30 |
Role of models in tracking carbon removal by EW
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09:30-09:45 |
Discussion
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09:45-10:15 |
Rivers, EW and C-cycling
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10:15-10:30 |
Discussion
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10:30-11:00 |
Break
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11:00-11:30 |
EW soil processes
![]() Professor Isabel Montanez NASUniversity of California, Davis, US ![]() Professor Isabel Montanez NASUniversity of California, Davis, US Isabel Patricia Montañez holds degrees in geoscience from Bryn Mawr College (BSc 1981) and Virginia Polytechnic Institute (PhD 1990). She was an assistant and associate professor in the Department of Earth Sciences, UC Riverside before joining the faculty in the Department of Earth and Planetary Sciences at UC Davis in 1998, where she is currently a Chancellor’s Leadership Distinguished Professor. She serves as the Director of the UC Davis Institute of the Environment. Her research focuses on reconstructing past perturbations to global carbon cycling and regional climate change, in particular, during periods of warming and major transitions. Isabel is a member of the National Academy of Sciences (’21), a fellow of several professional societies (AAAS, AGU, The Geochemical Society, European Soc. of Geochemistry, GSA), a past Fellow of the John Simon Guggenheim Memorial Foundation and a Fellow of the California Academy of Sciences, as well as the recipient of multiple national and international awards and medals (Arthur L Day Medal, Jean Baptiste Lamarck Medal, Francis J Pettijohn Medal). She served as President of The Geological Society of America from 2017 to 2018 and as Chair of the Board of Earth Sciences and Resources (2019-2024) and newly appointed Chair of the Division of Life and Earth Sciences at the National Academies of Sciences, Engineering, and Medicine. |
11:30-11:45 |
Discussion
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11:45-12:15 |
EW from a coastal ocean perspective
![]() Professor Filip MeysmanUniversity of Antwerp, Belgium ![]() Professor Filip MeysmanUniversity of Antwerp, Belgium Filip Meysman is research professor within the Department of Biology at the University of Antwerp (Belgium). He coordinates the newly founded Centre of Excellence on Microbial Systems Technology, and heads the GeoBiology research team, which investigates the biogeochemistry of the ocean floor, embracing interdisciplinary approaches (biology-chemistry-physics). In recent projects, he’s investigating how marine sediments can be used to sequester CO2 from the atmosphere via ocean alkalinization (www.coastal-carbon.eu) and he’s looking at the intriguing and exciting phenomenon of microbial electricity in the ocean floor (www.microbial-electricity.eu). Over his career, he has authored >170 research articles and received several awards recognizing scientific excellence (FWO Odysseus, ERC, NWO Vici, AIAS fellowship, Prigogine medal). Additionally, Filip Meysman is highly active in science communication and scientific outreach to the broader public, as coordinator of large-scale citizen science projects (www.curieuzeneuzen.be). |
12:15-12:30 |
Discussion
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Chair
Dr Noah Planavsky, Yale University, USA
Dr Noah Planavsky, Yale University, USA
Noah Planavsky is an Assistant Professor in the Department of Geology and Geophysics at Yale University. He studies the connections between the evolution of Earth-system processes, biological innovation, and ecosystem change—foremost in Earth’s early history. His research integrates field, petrographic, and geochemical work. A central theme of his research has been trying to piece together the history and effects of Earth’s oxygenation. He has also worked on reconstructing the evolution of atmospheric carbon dioxide levels through Earth’s history. Current projects include coupling paleoredox proxies, calibrating novel metal isotope systems in modern aqueous systems and disentangling the distribution and diagenetic history of traces metals in sedimentary rocks.
13:30-14:00 |
Public acceptability of EW– Global North vs Global South
![]() Dr Elspeth SpenceCardiff University, UK ![]() Dr Elspeth SpenceCardiff University, UK Elspeth has a background in environmental psychology and is interested in public risk perceptions and barriers to engagement with climate change and environmental issues. She is currently working on a project aimed at exploring how the public perceive carbon dioxide removal technologies with a focus on enhanced rock weathering. She completed her undergraduate and masters degrees in Psychology at the University of Aberdeen initially working on how types of information influenced public engagement with climate change. Her masters research investigated how trust in different information sources affected willingness to adopt pro-environmental behaviours. She obtained her PhD from Cardiff University where she worked on an interdisciplinary project using mixed methods to explore public risk perceptions of ocean acidification through a mental models approach. |
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14:00-14:15 |
Discussion
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14:15-14:45 |
US & EU policies relevant to incentivising EW
![]() Ms Anu KhanCarbon Removal Standards Initiative, US ![]() Ms Anu KhanCarbon Removal Standards Initiative, US Anu Khan is the founder and executive director of the Carbon Removal Standards Initiative (CRSI), a nonprofit that provides technical assistance and capacity building for carbon removal policy, focused on carbon quantification. Anu previously led the Science & Innovation team at Carbon180, a DC-based policy think tank, and co-led climate grantmaking at Founders Pledge, a philanthropic fund focused on high-impact policy advocacy for energy innovation. An electrochemist by training, Anu holds a BS in chemistry from Princeton and an MS in chemistry from Caltech. |
14:45-15:00 |
Discussion
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15:00-15:30 |
Break
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15:30-16:00 |
Panel discussion I
![]() Dr Livia FritzAarhus University, Denmark ![]() Dr Livia FritzAarhus University, Denmark Livia Fritz is a researcher at the Center for Energy Technologies at Aarhus University (Denmark). As an environmental social scientists, she explores the interfaces between science, policy, and society in the field of climate, with a particular focus on power dynamics public engagement. As part of the European projects GENIE and UPTAKE she currently works on the social and political dimensions of carbon dioxide removal methods. ![]() Professor Nick PidgeonCardiff University, UK ![]() Professor Nick PidgeonCardiff University, UK Nick is a social scientist who holds a Chair in environmental psychology and risk at Cardiff University where he directs the Understanding Risk Research Group. In his early career he investigated the human and organisational preconditions of large-scale disasters. Latterly he has worked on public engagement with environment and climate change, net zero technologies, and new technology risks. He has researched a range of social and ethical issues associated with geoengineering and carbon removal since 2009, and is a Co-Investigator of the Leverhulme Centre for Climate Change Mitigation investigating public perceptions and engagement with enhanced rock weathering in North America, the UK, and South East Asia. In 2006 Nick chaired the UK’s Cross-Party Parliamentary inquiry ‘Is a Cross-Party Consensus on Climate Change Possible – or Desirable?’ which recommended the setting up of the UK Climate Change Committee. He was awarded an MBE in 2014 for services to climate change and energy security awareness and became a Fellow of the British Academy in 2023. ![]() Professor Susan Owens OBE FBAUniversity of Cambridge, UK ![]() Professor Susan Owens OBE FBAUniversity of Cambridge, UK Susan Owens is Emeritus Professor of Environment and Policy, University of Cambridge and a Fellow of the British Academy. Her research lies in the field of environmental governance, focusing on the role of knowledge and expertise in policy formation and change. Her book Knowledge, Policy, and Expertise (OUP 2015) explored these issues through an in-depth analysis of the practices and influence of the former Royal Commission on Environmental Pollution (RCEP). She chairs the Programme Advisory Board for the five-year ESRC ACCESS project (Advancing Capacity for Climate and Environmental Social Science) and is a member of Defra’s Science Advisory Council (chairing one of its sub-groups, the Social Science Expert Group) and of the Board of the Parliamentary Office of Science and Technology. Previously, she has chaired the Science Advisory Council of the Stockholm Environment Institute and been member of RCEP, as well as serving on a range of other advisory bodies. |
16:00-16:15 |
Discussion
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16:15-17:00 |
Panel discussion II
![]() Professor Rachael JamesUniversity of Southampton, UK ![]() Professor Rachael JamesUniversity of Southampton, UK Rachael James is Professor of Geochemistry and Director of the NERC IGNITE Doctoral Landscape Award in the School of Ocean and Earth Science at the University of Southampton, UK. She is renowned for the development and application of novel chemical and isotopic techniques to improve understanding of ocean and earth processes and to address critical environmental and societal challenges. As part of the Leverhulme Centre for Climate Change Mitigation she leads the development of methodologies for removing CO2 from the atmosphere by enhanced rock weathering. Rachael serves on the scientific advisory councils of the GFZ Helmholtz Centre for Geosciences and the multi-institute research mission Marine Carbon Sinks in Decarbonisation Pathways and is a member of the awards committee of the European Association of Geochemistry (EAG). She was awarded a Philip Leverhulme Prize in 2006, an EAG Distinguished Lectureship in 2014 and was the Marie Tharp Lecturer in 2022. ![]() Dr Matthew ClarksonInPlanet GmbH, UK ![]() Dr Matthew ClarksonInPlanet GmbH, UK Dr Clarkson has been the Head of Carbon at InPlanet since 2022, bridging business and science to advance climate solutions. His academic background encompasses Geology, Geochemistry, and Earth Systems Science, with a BSc from Durham University, MSc from RHUL and UCL, and a PhD from the University of Edinburgh. His postdoctoral work at the University of Otago (NZ) and ETH Zurich focused on Earth System recovery; developing, refining and applying novel geochemical isotope tools and geochemical modelling to link terrestrial and oceanic carbon cycles. He particularly embraces the inherent complexity of geochemical tracing to investigate various components within intricate systems. At InPlanet, he utilises this approach with systems thinking to lead MRV and carbon credit certification. ![]() Dr Zeke HausfatherStripe, Inc., US ![]() Dr Zeke HausfatherStripe, Inc., US Zeke Hausfather is Climate Research Lead for Stripe. He is a climate scientist whose research focuses on observational temperature records, climate models, carbon removal, and mitigation technologies. Zeke also works as a research scientist with Berkeley Earth and is a science contributor to Carbon Brief. He was previously the senior climate analyst at Project Drawdown, the director of climate and energy at the Breakthrough Institute, the lead data scientist at Essess, the chief scientist at C3.ai, and the cofounder and chief scientist of Efficiency 2.0. He has masters degrees in environmental science from Yale University and Vrije Universiteit Amsterdam and a PhD in climate science from the University of California, Berkeley. Dr Noah Planavsky, Yale University, USA
Dr Noah Planavsky, Yale University, USANoah Planavsky is an Assistant Professor in the Department of Geology and Geophysics at Yale University. He studies the connections between the evolution of Earth-system processes, biological innovation, and ecosystem change—foremost in Earth’s early history. His research integrates field, petrographic, and geochemical work. A central theme of his research has been trying to piece together the history and effects of Earth’s oxygenation. He has also worked on reconstructing the evolution of atmospheric carbon dioxide levels through Earth’s history. Current projects include coupling paleoredox proxies, calibrating novel metal isotope systems in modern aqueous systems and disentangling the distribution and diagenetic history of traces metals in sedimentary rocks. |