Science–policy–practice insights for compound and multi‐hazard risks

Brett, L., Bloomfield, H.C., Bradley, A., Calvet, T., Champion, A., De Angeli, S., de Ruiter, M.C., Guerreiro, S.B., Hillier, J., Jaroszweski, D., Kamranzad, B., Keinänen‐Toivola, M.M., Kornhuber, K., Küpfer, K., Manning, C., Mattu, K., Murtagh, E., Murray, V., Bhreasail, Á.N., O'Loughlin, F., et al. (2025). Science–policy–practice insights for compound and multi‐hazard risks. Meteorological Applications 32 (2) e70043. 10.1002/met.70043.

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Abstract

When multiple weather‐driven hazards such as heatwaves, droughts, storms or floods occur simultaneously or consecutively, their impacts on society and the environment can compound. Despite recent advances in compound event research, risk assessments by practitioners and policymakers remain predominantly single‐hazard focused. This is largely due to traditional siloed approaches that assess and manage natural hazards. Hence, there is a need to adopt a more ‘multi‐hazard approach’ to managing compound events in practice. This paper summarizes discussions from a 2‐day workshop, held in Glasgow in January 2023, which brought together scientists, practitioners and policymakers to: (1) exchange a shared understanding of the concepts of compound and multi‐hazard events; (2) learn from examples of science–policy–practice integration from both the single hazard and multi‐hazard domains; and (3) explore how success stories could be used to improve the management of compound events and multi‐hazard risks. Key themes discussed during the workshop included developing a common language, promoting knowledge co‐production, fostering science–policy–practice integration, addressing complexity, utilising case studies for improved communication and centralising information for informed research, tools and frameworks. By bringing together experts from science, policy and practice, this workshop has highlighted ways to quantify compound and multi‐hazard risks and synergistically incorporate them into policy and practice to enhance risk management.

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