Tuesday 18 June 2024

Mathematical Institute, Oxford

9am - 5pm

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Welcome and Plenary 1: 09.00 - 10.30 am

Cameron Hepburn Welcome Speech

The State of the CDR (2nd Edition)

Carbon Dioxide Removal (CDR) is developing rapidly and gaining attention from governments, publics and commercial interests. The 2nd Edition of the State of CDR published in June 2024 , aims to provide a reliable, open and current assessment of CDR developments and requirements, led by the expert community. This talk by Steve Smith will highlight the key findings of the report, including the key advances since the 1st Edition and possible future directions.

Parallel Sessions - 11.00 - 12.30pm

Ocean Alkalinity 1

Ocean alkalinity enhancement (OAE) is a promising carbon dioxide removal (CDR) technique. This session will examine the viability and potential toxicity of various mineral feedstocks for increasing the alkalinity of the ocean. Additionally, the discussion will cover the criteria for modeling the effectiveness of OAE.

Chair: David Ho 

Speakers: 

  • Charly Moras: Carbon dioxide removal efficiency of iron and steel slag in seawater via ocean alkalinity enhancement 

  • Astrid Hylén: Ocean alkalinity enhancement through coastal enhanced silicate weathering: a long-term mesocosm study 

  • Laura Bastianini: Novel method of ocean alkalinity enhancement using ikaite and other hydrated carbonate minerals 

  • David Keller: The importance of having higher model resolution when simulating ocean alkalinity enhancement 

Social and Ethical 1 

Public(s) consultation is essential to gauging the feasibility and governability of CDR. Across a range of engagements, this session emphasizes deliberation and mutual learning, explores socio-political contexts that inform ‘situated’ (sectoral, organizational, locality, or polity driven) perspectives, and engages with the role of publics as drivers of assessment, civic and consumer action, and democratic oversight. 

Chair: Sean Low 

Speakers: 

  • Nick Pidgeon: Where is the Local in Local CDR? Exploring Community Deliberation of Enhanced Rock Weathering 

  • Livia Fritz: Towards inclusive and sustainable governance of carbon removal: What role for the public? 

  • Rob Bellamy: Deliberating biological methods of carbon dioxide removal across the United Kingdom 

  • Molly James: Direct air capture in your backyard: perceptions of large-scale direct air capture deployment in an English industrial community 

Bioenergy with Carbon Capture and Storage (BECCS) 1 

Bioenergy with carbon capture and storage (BECCS) is one of the key negative emission technologies. Thus, our chances to accomplish the large negative emissions unfortunately needed to offset the unavoidable overshoot of the carbon budget, are likely dependent on the progress of BECCS. We need to increase our understanding of BECCS in many aspects, not only the technology and the sustainable sourcing of biomass/biomass waste, but also from societal aspects like acceptance and sustainable financing. 

Chair: Anders Lyngfelt 

Abstracts: 

  • Mai Bui: Evaluating the impact of biomass supply chain emissions on the cost of BECCS 

  • Sabine Egerer: Measures of effectiveness to compare the carbon sequestration potential of forestation and BECCS 

  • Iain Donnison: Upscaling perennial biomass crops in the UK; best practice establishment of seed-based Miscanthus hybrids and SRC willow 

  • Ivana Stanicic: Achieving BECCS with chemical looping combustion 

Earth Systems Modelling 1 

Land-based carbon removal methods incur co-benefits and trade-offs with other land uses. This session will discuss results from a range of modelling approaches exploring the responses of the earth system to, and the trade-offs between, CDR methods and biodiversity, and other societal needs (e.g. renewable energy, food security and local communities). 

Chair: Nem Vaughan 

Speakers: 

  • Julia Pongratz: Earth system tradeoffs and responses to large-scale Carbon Dioxide Removal portfolio deployment 

  • Firza Riany: The Role of Northern Forests in Global Mitigation Efforts to Limit Warming to 1.5C 

  • Ian Bateman: Addressing interconnected challenges: Integrating science with economics to deliver climate, food and biodiversity objectives  

  • Ruben Prutz: Spatial analysis of CDR implications for global biodiversity refugia 

Parallel Sessions - 2.00 - 3.30pm

Enhanced Rock Weathering (ERW) 1 

Assessing the carbon removal potential, environmental impact, and co-benefits of Enhanced Rock Weathering (ERW) is essential before large scale deployment, yet challenging due to complex environmental systems. This session presents findings from various column, mesocosm and field experiments, exploring the effects of different soils, environmental conditions, and alkaline materials on ERW's overall potential. 

Chair: Kirsty Harrington 

Speakers: 

  • Reinaldo Poetra: Alkaline-synthetic Materials for Carbon Dioxide Removal: Benefits, Constraints, and Challenges 

  • Maria-Elena Vorrath: ROCKCHAR – Co-pyrolysis of biomass and industrial side products for cost-efficient carbon dioxide removal 

  • Jens Hammes: Testing several MRV approaches in a large-scale ERW greenhouse experiment with 16 soils and 11 rock dusts 

  • Ingrid Smet: Enhanced weathering with ultramafic rock dusts: Field experiments with cotton and alfalfa in Thessaly, Greece 

Economics

Understanding the economics of CDR will be key to find the right incentive and regulatory frameworks to reach ambitious CDR scales on time. This session contributes to this with a focus on finance issues and different actor interests along CDR supply chains, but also considering non-market instruments and justice considerations. 

Chair: Sabine Fuss 

Speakers: 

  • Romain Presty: The Economics of Carbon Dioxide Removal Technologies using Equilibrium Modelling 

  • Malte Winkler: Beyond Carbon Markets: An Assessment of Non-Market Policy Instruments for Carbon Dioxide Removal toward Fairness and Effectiveness 

  • Anders Lyngfelt: Atmospheric CO2 Removal Deposits (ACORDs) – a policy tool designed to fulfil the 1.5 degree target 

  • Pietro Andreoni: Market regulation for negative emissions: costs and opportunities 

Global Pathways

A key challenge in developing strategies for carbon removal at international levels is to understand the synergies and trade-offs, both between CDR methods and with emission reductions. This session will discuss results from Integrated Assessment models, exploring how these interactions may be evaluated and the implications for policymaking. 

Chair: Steve Smith 

Abstracts 

  • Jessica Strefler: Low-risk carbon removal pathways 

  • Morgan Edwards: Risks of relying on uncertain carbon dioxide removal technologies in climate policy 

  • Darius Sultani: The future role of permanent carbon removal in the EU emissions trading system 

  • Tabea Dorndorf: Integrated analysis of the relative advantages of Biochar, BECCS and DACCS under different systemic conditions 

Forestry

Re/afforestation, forestry, and forest restoration currently constitute almost all of the globally deployed CDR. This session presents methodological advances, building on land vegetation modeling, life cycle assessments, and Earth observations, and novel results for both tropical and extra-tropical regions concerning CDR potential and side-effects, e.g., on biodiversity of forest-related CDR.  

Chair: Julia Pongratz 

Speakers: 

  • Anna Harper: A modified global dynamic vegetation model to represent country-level carbon cycle impacts of tree planting  

  • Hsi-Kai Chou: Representing the demography of the UK forest diversity using a process-based Land Surface Model 

  • Yuan Yao: Sequestering Carbon through Protection and Production: A Multi-Scale Life Cycle Assessment of Industrial Reforestation in Mata Atlantica, Brazil 

  • Xueyuan Gao: The importance of distinguishing native forest from commercial forest restoration 

Posters Session - 4.00 - 5.00pm

Conference Schedule