Stockholm World Water Week August 2024
The Global Methane Pledge launched at COP 26 set a global target to reduce methane emissions by at least 30% by 2030. Poorly managed sanitation is a major source of methane and may be responsible for up to 5% of global emissions. Non-sewered sanitation (NSS) creates conditions that favour methane production, but there are substantial uncertainties in the emissions released because of very limited empirical data. There are several initiatives to improve our understanding the contribution of methane from NSS, including field studies in four countries under the SCARE project. This workshop will present the findings from the SCARE project, and insights from EAWAG, UNICEF, the World Bank, and USAID. The session will present lessons of methane emissions and capture from around the world, including low and high income countries. The use of improved data on methane to scale-up emissions assessment at city and national scale, how methane emissions may be reduced and the trade-offs that may arise will be discussed. By presenting the key findings of the SCARE and related projects, we will advance knowledge in the sector. Including practical examples of using data to estimate emissions and options to reduce these, will build knowledge of workable solutions.
- Welcome and introduction to the session: Why sanitation is important in relation to action on methane (Guy Howard, University of Bristol, UK) 5 mins
- Methane from tanks and latrines in LMICs: key findings from the multi-country SCARE project (Miller Alonso Camargo Valero, University of Leeds, UK) 10 mins
- How groundwater affects methane emissions from pits: combining empirical field and groundwater modelling (Prativa Poudel, Kathmandu University, Nepal) 5mins
- The influence of on-site sanitation containment technology and management on methane emissions (Baba Ngom, Ecole Polytechnique de Thies, Senegal) 5 mins
- Key issues to consider when applying empirical methane data to scale up estimates for city-wide scale assessments (Linda Strande, EAWAG, Switzerland) 10 mins
- Using empirical and secondary data to estimate national methane emissions in Africa (Olivia Reddy, University of Bristol) 5 mins
- Questions to speakers/panel (Chair: Guy Howard)
- Wrap-up: key messages (Guy Howard)