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Session Proposal: Scaling Enhanced Rock Weathering for CO₂ Removal in the (Sub-)Tropics: Innovations in MRV, Agronomy, and Community-Driven Deployment (AGU25)

GC095
Scaling Enhanced Rock Weathering for CO₂ Removal in the (Sub-)Tropics: Innovations in MRV, Agronomy, and Community-Driven Deployment

Session ID#: 251754

Session Description:
Enhanced Rock Weathering (ERW) continues to emerge as a critical geochemical carbon dioxide removal (CDR) pathway with the potential to deliver durable and measurable climate and agronomic benefits. (Sub-)tropical regions – with their favorable climate and soil characteristics – offer a promising setting for accelerated silicate weathering, yet present distinct operational challenges. This session will focus on advancing ERW in the (sub)tropics by deepening the integration of robust Measurement, Reporting, and Verification (MRV) frameworks, geochemical modeling, assessment of  co-benefits, and Life Cycle Analysis (LCA). In particular, we welcome submissions that highlight novel approaches to (a) quantifying carbon sequestration across soil, water, and crop systems in both the near field and far field zones; (b) agronomic and environmental impacts including precision agriculture, microbial interactions, and the use of ERW as a multi-benefit climate solution; and community involvement such as farmer participation, multi-institutional collaboration, and community benefits.
Co-Sponsor(s):
  • B - Biogeosciences
Index Terms:

0402 Agricultural systems [BIOGEOSCIENCES]
0428 Carbon cycling [BIOGEOSCIENCES]
1626 Global climate models [GLOBAL CHANGE]
1630 Impacts of global change [GLOBAL CHANGE]
Primary Convener:  Fatima Haque, Flux Carbon, Nairobi, Kenya
Conveners:  Benjamin Möller1, Alison Marklein2 and Shawn G Benner2, (1)Flux Carbon, Nairobi, Kenya(2)Terradot, San Francisco, United States
 
Field-Scale Enhanced Rock Weathering for Agronomic Benefits in Western Kenya: Insights from a Commercial Sugarcane Plantation in Migori County (1848743)
Fatima Haque, Benjamin Möller, Cavince Odhiambo, Susan Sagina, Sam Davies, Herine Ondolo, Ngugi Thuo, Patrick Otieno, Julianah Kanyingi and Kevin Kamau, Flux Carbon, Nairobi, Kenya
 
Reactive Transport Modelling of Carbon Dioxide Removal (CDR) in Agricultural Soils in Response to Liming (1852113)
Sergio Andrés Bea, Danyang Su, Jennifer Mills, Shawn Benner Sr., Alison Marklein and Ulrich Mayer, Terradot, San Francisco, United States
 
From fjord to field- demonstrating the effectiveness of Greenlandic glacial rock flour as a climate solution for Danish and European agriculture (1864401)
David Oldcorn, Rock Flour Company, Copenhagen, Denmark
 
Reduced Order Modeling of Carbon Dioxide Removal via Enhanced Rock Weathering (1869216)
Jiahui You1,2, Wei Xiong1,2, Veronika Vasylkivska3, Emily Clinkscales3,4, Robert M Dilmore1 and Vyacheslav Romanov1, (1)National Energy Technology Laboratory, Pittsburgh, United States, (2)NETL support contractor, Pittsburgh, United States, (3)National Energy Technology Laboratory, Albany, United States, (4)NETL support contractor, Albany, United States
 
Plot-Scale Enhanced Rock Weathering in Cameroon: Carbon Removal and Agronomic Response in Leguminous Green Bean and Tuberous Potato (1871190)
Samuel Tetsopgang1, Valentine Lengouh1, Percy Beucheh1 and Fatima Haque2, (1)The University of Bamenda, Higher Teacher Training College (HTTC), Department of Geology, Bamenda, Cameroon, (2)University of Guelph, Guelph, Canada
 
Monsoon rainfall-driven silicate weathering during glacial-interglacial cycles and its implications for the global carbon cycle (1872413)
Debo Zhao1, Shiming Wan2, Xiangtong Huang3, Zhengyao Lu4, Prof. Peter Dominic Clift, MA, PhD, DSc5, Dongyong Li6, Xiting Liu6, Yifei Yang1, Shoushu Jiang1 and Anni Lin1, (1)Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China, (2)Insititute of Oceanology, Chinese Academy of Sciences, Qingdao, China, (3)Tongji University, Shanghai, China, (4)Lund University, Lund, Sweden, (5)University College London, Department of Earth Sciences, London, United Kingdom, (6)Ocean University of China, Qingdao, China
 
Utilization of existing geochemical data from terrestrial and marine environments to scale up enhanced rock weathering efficiently (1889542)
Ishfaq Ahmad Mir, Geological Survey of India, NCEGR, Bangalore, India
 
Delivering ERW in (sub)tropical regions: the importance of petrology and mineralogy in the universities (1907525)
David Manning, Newcastle University, Newcastle upon Tyne, United Kingdom
 
Public Perceptions of Implementation Scenarios for Enhanced Rock Weathering in a Cross-Country Setting (1909202)
Chad Baum1, Livia Fritz1, Benjamin Sovacool2 and Lucilla Losi1, (1)Aarhus University, Aarhus C, Denmark, (2)Boston University, Boston, United States
 
Enhancing Cabbage Growth and Soil Fertility with Volcanic Pyroclastic Materials: A Field Evaluation (1909993)
Samuel Tetsopgang, The University of Bamenda, Higher Teacher Training College (HTTC), Department of Geology, Bamenda, Cameroon, Fabrice Fonyuy, The University of Bamenda, Higher Teacher training College (HTTC), Department of Geology, Bamenda, Cameroon and Fabrice Fonyuy
 
Microbially Enhanced Rock Weathering for Carbon Dioxide Removal: Promise, Pitfalls, and Progress (Invited) (1913421)
Harun Niron1, Thomas Corbett2, Iris Janssens1, Tullia Calogiuri3, Reinaldy Poetra4, Lukas Rieder4, Abhijeet Singh5, Michiel Van Tendeloo1, Arthur Vienne1, Patrick Frings6, Laura Steinwidder1, Alix Vidal3, Mathilde Hagens3, Jan Willem Van Groenigen3, Tim Verdonck1, Jens Hartmann7, Siegfried E. Vlaeminck1, Anna Neubeck5, Ivan A. Janssens1 and Sara Vicca8, (1)Universiteit Antwerpen, Antwerpen, Belgium, (2)University of Waikato, Hamilton, New Zealand, (3)Wageningen University and Research Center, Wageningen, Netherlands, (4)University of Hamburg, Hamburg, Germany, (5)Uppsala University, Uppsala, Sweden, (6)Deutsches GeoForschungsZentrum GFZ, Potsdam, Germany, (7)Universität Hamburg, Geosciences / Center for Earth System Research and Sustainability (CEN), Hamburg, Germany, (8)University of Antwerp, Department of Biology, Antwerp, Belgium
 
From Weathering Arena to Groundwater: Carbon, Cation and Secondary Phase Dynamics Following Rock Dust Treatments in Agroecosystems (Invited) (1913864)
Lyla Taylor1, Euripides P. Kantzas1, Mark Lomas2, Barbara Palumbo-Roe3 and David John Beerling4, (1)Leverhulme Centre for Climate Change Mitigation, School of Biosciences, Sheffield, United Kingdom, (2)Leverhulme Centre for Climate Change Mitigation, Leverhulme Centre for Climate Change Mitigation, Sheffield, United Kingdom, (3)British Geological Survey Keyworth, Environment Modelling Team, Nottinghamshire, United Kingdom, (4)University of Sheffield, Leverhulme Centre for Climate Change Mitigation; School of Biosciences, Sheffield, S10, United Kingdom
 
Enhanced Rock Weathering with Smallholder Farmers in India's Sub-Tropical Cotton Belt (1917329)
Sanchit Kumar, Tanishq Thorat and Madhur Jain, Varaha ClimateAG Private Ltd, Gurugram, India
 
Field‑Scale Quantification of Enhanced Rock Weathering and net CDR (1920379)
Alison R Marklein1, Jennifer Mills1, Jennifer Soong1, Graeme Baird1, Jonathan Ojeda2, Maria Carolina Amorim Catunda2, Laisa de Assis Batista2, William Larsen1, Jackson Harris1, Emily Hagood1, Michel Esper Neto2, Carolina Trentin2, Celso Rafael Macon2, Shawn Benner Sr.1 and Scott Fendorf1,3, (1)Terradot, San Francisco, United States, (2)Terradot, Sao Paulo, Brazil, (3)Stanford University, Department of Earth System Science, Stanford, United States
 
Mechanisms limiting carbon dioxide removal via weathering of basalt in tropical acidic soils (1927495)
Fred Holden, James Cook University, College of Science and Engineering, Minneapolis, MN, United States, Michael Ian Bird, James Cook University, College of Science, Technology, and Engineering, Cairns, Australia and Paul Nelson, James Cook University, College of Science and Engineering, Cairns, Australia
 
Developing a rigorous, globally operable protocol for monitoring, reporting, and verifying enhanced weathering projects (1930269)
Kevin Michael Sutherland1, Ella Holme2, Marya Matin-Wainer2, Michael Thorpe3 and Katie Earl4, (1)Isometric, New York City, United States, (2)Isometric, New York, United States, (3)NASA Goddard Space Flight Center, Greenbelt , MD, United States, (4)Isometric, London, United Kingdom
 
Towards Developing an Evidence-driven Policy Framework to Leverage Enhanced Rock Weathering in India (1940777)
Madhuparna Paul, Vedanta Adak, Nirmalya Mukherjee and Pranay Lal, Centre for Public Health Research-Manbhum Ananda Ashram Nityananda Trust, Kolkata, India
 
Coordinated Research Approaches For Effective ERW Evidence Building (1951102)
Noah Anderson, Alison K. Tune, Noemma Olagaray, Pritha Ghosh, Richard Marinos and Tannis Thorlakson, Cascade Climate, Boston, United States
 
Probing Sources and Pathways of Error in Enhanced Rock Weathering Field Monitoring: Impact of Plot Setup and Uncertainty Propagation (1951355)
Rafael Santos1, Andrea Chacon2, Ayda Amidi2, Francisco S.M. Araujo2, Reza Khalidy2, Rebecca Bergquist Neumann3, Dr. XinRan Liu, MSci, MSc, PhD4 and Kirstine Skov5, (1)University of Guelph, Civil, Environmental & Water Resources Engineering, Guelph, Canada, (2)University of Guelph, Guelph, Canada, (3)University of Washington, Seattle, WA, United States, (4)UNDO Carbon, Science, Edinburgh, United Kingdom, (5)UNDO Carbon, Edinburgh, United Kingdom
 
Harnessing Microbes to Weather Native Silicates in Agricultural Soils for Scalable Carbon Dioxide Removal (1954694)
Corey R Lawrence, Tania Timmermann, Philip Weyman, Daniel Dores, Yun-Ya Yang and Gonzalo Fuenzalida-Meriz, Andes Ag, Inc., Alameda, United States
 
On the storage and transport of anthropogenic alkalinity in unsaturated soils (1957397)
Jake Jordan, Mati Carbon, Houston, United States and Mohammad Afzal Shadab, Princeton University, Princeton, United States
 
Large-Scale Field Trial of Enhanced Weathering in a Supply-Limited, Monsoonal Subtropical Region (Eastern Himalayan Foothills). (1965949)
Shrey Agarwal1, Shaifullah .1, Usman Khan1, Arya Tilak1, Surajit Mondal1 and Sambuddha Misra2, (1)Alt Carbon, Bangalore, India, (2)Indian Institute of Science, Bangalore, Centre for Earth Sciences, Bangalore, India
 
Reactive transport simulations of enhanced weathering in Brazilian Oxisols (1997217)
D Brian Brian Rogers, Stanford University, Earth System Science, Stanford, CA, United States and Katharine Maher, Stanford University, Earth System Science, Stanford, United States
 
Modeling Biophysical and Economic Suitability for ERW in Tropical Africa (1997968)
Abigail Fitzgibbon1, Benjamin Möller2, Ngugi Thuo2 and Herine Ondolo2, (1)Stanford University, Stanford, CA, United States, (2)Flux Carbon, Nairobi, Kenya
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