schedule

International Liège Colloquium 2025
Marine CDR - Emerging Views and challenges
Venue: Université de Liège, Place du vingt aout, 7 - 4000 Liège
Oral sessions: Salle académique  (main floor of ULiège Headquarters, at the back)
Registration | Coffee | Helpdesk | Posters : Salle des professeurs (1st floor of ULiège Headquarters, in front of the monumental stairs)
Monday 26th May 2025 Salle académique , Place du vingt aout, 7 - 4000 Liège
08:30 Registration
09:00 Welcome by the organisers
09:15 Welcome and opening by the Anne-Sophie Nyssen, Rector of the University of Liège
Session Model Simulations & Global-Scale Impact of mCDR Deployment (Chair: Katja Fennel)
09:30 Opening lecture : Laurent Bopp | State of the climate and the potential need for (m)CDR 
09:50 Pedro M. S. Monteiro: What are the processes that influence the regional ocean responses to sustained global 1% Negative Emissions?
10:10 Hendrik Grosselindemann: Potential of Ocean Alkalinity Enhancement in Climate Stabilization scenarios at Different Warming Levels
10:30 coffee break
11:00 Yinghuan Xie (talk given by Lennart Bach): Advancing Ocean Modelling Tools to Constrain Marine CDR Effectiveness by Testing Air-Sea Equilibration Timescales
11:20 James C. Orr: Sharp decline in air-sea CO2 equilibration time from ocean acidification and climate change
11:40 Tanvi Nagwekar: Lessons learnt from Modelling Global and Regional Ocean Alkalinity Enhancement across Model Set-ups of Varying Complexity
12:00 Ana C. Franco: Can we leverage dissolved inorganic carbon variability to maximize OAE efficiency in the Northeast Pacific?
12:20 Lunch Break
Session Ocean alkalinity Enhancement (Chair: Helmut Thomas, co-chair Shreya Mehta)
14:00 Keynote : Lennart Bach |Re-thinking ocean alkalinity enhancement
14:30 Sebastien J van de velde : The Icelandic coastal zone as a natural analogue for coastal enhanced rock weathering
14:50 Isabel Mendes: Alkalinity enhancement field experiment in a saltmarsh to monitor carbon sequestration and environmental impacts
15:10 Elizabeth H. Shadwick: Ocean alkalinity enhancement experiment using aqueous sodium hydroxide: learnings from a small-scale field trial in Tasmania
15:30 coffee break
16:00 Michael Fuhr: The principle working function of the ‘benthic weathering engine’ indicated by results from benthocosm experiments
16:20 Jørgen Bendtsen: Glacial rock flour as a potential means of action for mCDR.
16:40 Shreya Mehta: Assessing the potential and biogeochemical impacts of mineral based Ocean Alkalinity Enhancement in the Arabian Sea: Insights from bioassay experiments
17:00 Icebreaker/poster
19:00 End
Tuesday 27th May 2025 Salle académique , Place du vingt aout, 7 - 4000 Liège
Session MRV (Measurement, Reporting, and Verification) (Chair David Ho)
09:00 Keynote: Dariia Atamanchuk | MRV and environmental monitoring
09:30 Arnaud Laurent: A high-resolution nested model to study the effects of alkalinity additions in Halifax Harbour, a mid-latitude coastal fjord
09:50 Katja Fennel: A model-based accounting of carbon dioxide removal resulting from ocean alkalinity enhancement field trials in Halifax Harbour, Canada
10:10 Max Holloway: Advancing Ocean Alkalinity Enhancement: Planetary's Ocean Modeling Strategy applied to Carbon Removal Field Trials in Halifax Harbour, Canada (Online)
10:30 coffee break
11:00 Anna Madlener: OAE MRV Benchmarking: A Comprehensive Analysis of Current Practices (online)
11:20 Helene Muri / Chelsey A Baker : Knowledge Gaps, Uncertainties, and Recommendations for Advancing Monitoring, Reporting, and Verification for Marine Carbon Dioxide Removal: a European Marine Board Future Science Brief
11:40 Lunch Break
11:40 ERC lunch with senior
Session Impact of mCDR on Marine Ecosystems – Results from bioassays and models (Chair: Jørgen Bendtsen)
14:00 Keynote: Phil Williamson | Environmental impacts of mCDR
14:30 Lisa Levin: Deep Thinking About mCDR Risks and Benefits
14:50 Elizabeth Jewett (talk given by Helen Findlay): Potential Impacts of marine carbon dioxide removal on fisheries, aquaculture, and their management
15:10 Wanja F. Böhme: Ecological Impacts of Ocean Alkalinity Enhancement on Prokaryotic Communities: Insights from a Mesocosm Experiment
15:30 coffee break
16:00 Giulia Faucher: Can a non-equilibrated Ocean Alkalinity Enhancement approach impact phytoplankton communities during bloom conditions? Insights from a Mesocosm Study
16:20 Guy Hooper: Investigating the impacts of Direct Ocean Carbon Capture (DOCC) on phytoplankton performance
16:40 Antonia Cristi: Impacts of marine Ocean Alkalinity Enhancement generated by Direct Air Capture on natural phytoplankton communities in New Zealand
17:00 poster session
19:00 End
Wenesday 28th May 2025 Salle académique , Place du vingt aout, 7 - 4000 Liège
Session Life Cycle Analysis (Chair: Filip Meysman)
09:00 Keynote: Spyros Foteinis | Life cycle assessment in the carbon dioxide removal ecosystem: unraveling the net-negativity and environmental trade-offs of (m)CDR
09:30 Maria Myridinas: A Prospective Life Cycle Assessment of Ocean Alkalinization Enhancement - Comparing OAE from alkaline solutions and mineral feedstocks.
09:50 Harris Anderson: Optimising Ocean Alkalinity Enhancement: Surface Addition, Deep Sequestration, and Modelling for Targeted CO2 Removal.
10:10 Mathieu A. Poupon: Cost-effective ocean alkalinity enhancement confined to coastal regions.
10:30 coffee break
Session Impact of mCDR on Marine Ecosystems – Results from bioassays and models (end)  (Chair: Jørgen Bendtsen)
11:00 Sam Dupont: Experimental evidence of the biological response to ocean alkalinity enhancement
11:20 Nina Bednarsek: Assessment framework to predict sensitivity of marine calcifiers to ocean alkalinity enhancement, identification of biological thresholds and importance of precautionary principle
11:40 Emilia Jankowska: Similar Impacts on Benthic Communities from Two Field Applications of Marine Enhanced Rock Weathering
12:00 Lunch Break
Session Governance, Social, and Economic Considerations (Chair: Erik van Doorn)
14:00 Keynote Romany Webb | Governing Marine Carbon Dioxide Removal: Past, Present, and Future
14:30 Sandy Avrutin: Ethical research and the roles of the mCDR researcher: Interdisciplinary approaches towards deconstructing and addressing biases
14:50 Eric Schwaab: Climate solutions on the high-seas: A multi-sector conversation to chart the research agenda on phytoplankton-based CDR
15:10 coffee break
Pannel Discussion on carbon market
15:30 Panel keynote Adrien Comte | The role of carbon market on mCDR development (online)
16:00 Panel Discussion (Moderator Filip Meysman)
Panellists
Larisa Lorinczi | European Commission
David Ho | [C]Worthy / University of Hawaiʻi at Mānoa
Romany Webb | Sabin Center for Climate Change Law, Columbia Law School
Eric Schwaab | oceanvisions
Daan Reijnderds | SeaO2 (TBC)
17:00 End
20:00 Colloquium Dinner at Van Der Valk Sélys Hotel, Rue du Mont St Martin 9/11, 4000 Liège
Thursday 29th May 2025 Room Rita Lejeune, Opera Campus, Place de la République Française, 41 - 4000 Liège
Session Ocean alkalinity Enhancement (end) (Chair: Shreya Mehta , co-chair: Filip Meysman)
Late beginning of the session
09:30 Gunter Flipkens: Potential of cement and lime kiln dust for ocean alkalinity enhancement: an experimental study
09:50 Charly A Moras: Impacts of seawater advection on Ca(OH)2 and Mg(OH)2 dissolution and CaCO3 precipitation kinetics in a long-term experiment : implications for Ocean Alkalinity Enhancement research
10:10 Astrid Hylen: Ocean alkalinity enhancement through marine enhanced rock weathering with olivine: a long-term mesocosm study
10:30 Michael Fettweis: Environmental conditions for alkalinity enhancement in the Belgian part of the North Sea
11:00 coffee break
Session MRV (Measurement, Reporting, and Verification) (continuing) (Chair David Keller)
11:20 Feifei Liu: Evaluating Ocean Alkalinity Enhancement in the North Sea Using a Coupled Physical-Biogeochemical Model: Efficiency and Implications
11:40 Anna-Adriana Anschütz: Lessons from model simulations on the direct impacts and possible implications of OAE in the Baltic Sea
12:00 Lunch Break
12:00 ERC lunch with senior
Session Governance, Social, and Economic Considerations (Chair Filip Meysman)
14:00 Keynote: Terre Satterfield | Contemplating ocean futures: Thinking at scale and the many social uncertainties across climate solutions 
14:30 David Kaiser: How to make Blue Carbon accounting scientifically reliable and socially fair  – an example from the MANCOGA project in Ghana
14:50 Chelsey A. Baker: Storylining as an interdisciplinary tool for facilitating and anticipating the outcomes of marine carbon dioxide removal
15:10 Ekaterina Popova: Towards developing a Digital Twin for seaweed-based Carbon Dioxide Removal: Addressing socio-oceanographic challenges
15:30 coffee break
Session MRV (Measurement, Reporting, and Verification) (Chair Katja Fennel)
16:00 Ian Stokes: A simple, insightful model for understanding optimal configurations and sources of uncertainty in mCDR interventions (Online)
16:20 Ruby Yee: The importance of accurately capturing ocean physics in models used for quantifying marine carbon dioxide removal (online)
16:40 Ruth Musgrave: Air-sea gas exchange and vertical mixing: An Achilles' Heel for mCDR
17:00 End
Friday 30th May 2025 Salle académique , Place du vingt aout, 7 - 4000 Liège
Session Use of the Biological Pump (Chair Philip Boyd)
09:00 Keynote: Catriona Hurd | Challenges of ocean afforestation: can seaweed open ocean aquaculture enhance the biological pump?
09:30 Kyung-Min Noh: Futility of Iron Fertilization for Carbon Sequestration in 95% of World Ocean Area
09:50 Mark Wells: Can Science Get Ahead of Commercialization of Ocean Iron Fertilization (OIF) to Evaluate its Climate Benefits and Ecological and Environmental Consequences?
10:10 Santiago Hernández León: Biomanipulation as a tool for marine carbon dioxide removal in the ocean
10:30 coffee break
11:00 Luca Polimene: Potential Carbon Capture and Storage from dumping seaweed-derived organic matter into anoxic basins.
11:20 Prima Anugerahanti: The impact of offshore macroalgae cultivation and harvesting strategy on marine carbon dioxide removal efficacy and marine biogeochemistry
11:40 Suhas Shetye: Assessment of various Marine Carbon Dioxide Removal (mCDR) strategies in the northern Indian Ocean
12:00 Concluding Remarks
12:10 End
Poster display is from Monday, 26 May 2024 to Friday, 30 May 2024. Poster sessions are Monday (26th) and Tuesday (27th) 17:00 - 19:00
Session Model Simulations & Global-Scale Impact of mCDR Deployment
Sina Acksen: Model-based assessment of the long-term stability of added alkalinity to the oceans
Keziah Peppiette: Efficiency and Risks of Marine Enhanced Silicate Weathering: Insights from a model study
Brian Soden: Reducing the Efficiency of the CO2 Greenhouse Effect
Kyung-Min Noh: Detection and Attribution of Carbon Removal via Large-Scale Ocean Iron Fertilization in Emission-Driven Simulations 
Estela A Monteiro: Ocean deoxygenation: degrees of reversibility in an atmospheric carbon dioxide removal (CDR) scenario
Erik E. Johnson: High Resolution GPU-based Numerical Simulations of Ocean
Alkalinity Enhancement Interventions
Session Governance, Social, and Economic Considerations
Anthony Akpan: Strengthening targeted advocacy on mainstreaming ocean acidification into national policies and building capacity of stakeholders including ECOPS on its measurement techniques in Nigeria and West Africa.
Session Ocean alkalinity Enhancement
Josiane Ostiguy: Physical Drivers of Ocean Alkalinity Enhancement Efficiency
Jessica Oberlander: Ocean Alk-Align: an international research project to assess the potential of Ocean Alkalinity Enhancement for marine Carbon Dioxide Removal
Tom Huysmans: The potential and limitations of oceanic carbon dioxide storage via the Accelerated Weathering of Limestone
Hadar Berman: Optimizing an Observing Strategy for Ocean Alkalinity Enhancement (OAE)
Sean Morgan: Characterizing properties of the alkalized outfall and near-field processes around the OAE release site using an multiparameter mobile platform - the Blue Boat
Samuel Hermant: The impact of bioturbation on sedimentary alkalinity production
Friedrich A. Burger: Sensitivity of ocean alkalinity enhancement to imperfect mineral dissolution
David P. Keller: The Carbon to Sea Initiative - the role of philanthropy in ocean alkalinity enhancement research and emerging opportunities
Stefan Baltruschat: Efficient and stable alkalinity release from Ikaite? - Implications for Ocean Alkalinity Enhancement
Cedric Goossens: Towards shellfish aquaculture circularity: stimulating mussel shell dissolution in marine sediments
Nadine Lehmann: Assessing biogeochemical feedbacks between ocean alkalinity enhancement and benthic alkalinity cycling
Yubin Hu: Effect of ocean alkalinity enhancement on mitigating ocean acidification: A mesocosm study
Lily Anna Stokes: Ocean Acidification and the UK: monitoring and mitigation
Erik Gustafsson: Potential for ocean acidification mitigation and carbon dioxide removal by ocean liming in the Baltic Sea (online)
Noam Karo: Advancing Marine Carbon Dioxide Removal through Electrochemical Alkalinity Enhancement and Mineralization
Nicolas Smith Sanchez: Towards defining a safe environmental framework for ocean alkalinity enhancement: impacts on plankton food webs across applications and ecosystems
Griet Neukermans: Autonomous monitoring of secondary precipitation during OAE field trials
Session MRV (Measurement, Reporting, and Verification)
Vanessa Teske: Quantifying the efficiency of ocean alkalinity enhancement: which metric is best?
Helen Findlay: The Global Ocean Acidification Observing Network: perspectives and support for mCDR research
Daan Reijnders: Research & MRV framework for SeaO2's electrochemical Direct Ocean Capture process
Zhaoqing Yang: Assessment of Ocean Alkalinity Enhancement for Scalable Marine Carbon Dioxide Removal: an Integrated Experimental and Modeling Approach
Session Impact of mCDR on Marine Ecosystems – Results from bioassays and models
Svetlana Petric:  Phytoplankton and Microzooplankton responses to Calcium-based Ocean Alkalinity Enhancement during a Spring bloom in the North Sea 
Haozhen Liu: Effects of Ocean Alkalinity Enhancement on Phytoplankton Growth, Metabolism, and Community Structure
Sam Dupont: Ocean Alkalinity Enhancement - Building capacity to assess the Impacts on Marine Organisms
Benjamin Van Heurck: Ecological implications of ocean alkalinity enhancement with olivine: nickel release and bioaccumulation in Arenicola marina.
Marco Rump: Ecophysiological impacts of olivine-based Ocean Alkalinity Enhancement (OAE) on benthic bivalves
Isabella Zehender: Effects of ocean alkalinity enhancement on mesozooplankton communities during seasonal mesocosm studies in the western Baltic Sea (Kiel Fjord, Germany)
Benjamin Loveday: Supporting marine carbon capture activities with EUMETSAT operational satellite data
Kristina Vallentin Larsen: Glacial rock flour and phytoplankton growth - a potential means of action for mCDR and its environmental impact
Stemmann, Lars: Potential for monitoring plankton and particles with the Underwater Vision Profilers during open-ocean carbon dioxide removal deployments
Margarita Chikina: Effects of biological invasions in benthic communities on carbon sequestration: case study from the Black Sea
Session Use of the Biological Pump
Judith Matz: Assessing the Potential of Seaweed-Based Carbon Dioxide Removal: Scaling Up and Future Evaluation
Sarah Smith: A new generation of iron enrichment mCDR field studies with embedded social science and governance activities
Alexander Polukhin: First estimates of intra-annual variability of carbon dioxide exchange on the Russian Black Sea shelf
Evgeny Ivanov - Model-Based Assessment of Carbon Sequestration by Macroalgae Farming near Offshore Wind Farms in the Belgian Coastal Zone: Preliminary Results.