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https://doi.org/10.5194/egusphere-2025-5897
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/egusphere-2025-5897
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
17 Dec 2025
| 17 Dec 2025
Status: this preprint is open for discussion and under review for Natural Hazards and Earth System Sciences (NHESS).
Reducing Risk Together: moving towards a more holistic approach to multi-(hazard-)risk assessment and management
Abstract. Moving towards a more holistic approach to disaster risk management, in which a multi-(hazard-)risk approach is central, offers many opportunities to increase society’s resilience. In 2022, we presented a research agenda of six points that could contribute towards this paradigm shift. In this paper we synthesise key learnings from the MYRIAD-EU project - which ran from September 2021 to December 2025 - reflecting on progress and challenges faced in pursuing this research agenda, and share perspectives that may help to further improve multi-(hazard-)risk assessment and management. Going forward, we point to several avenues for continued scientific research: continue the mainstreaming and mutual understanding of concepts and definitions; continue developing a strong evidence base of how multi-(hazard-)risk both shapes, and is shaped by, risk dynamics over space and time; further developing methods for providing both current and future multi-(hazard-)risk scenarios; increasing the availability of appropriate, solutions-oriented, usable tools; more explicitly including equity issues and equitable disaster risk reduction and adaptation; continue extensively testing and coproducing multi-(hazard-)risk knowledge in in-depth case studies; supporting the development of Multi-Hazard Early Warning Systems; and strengthening opportunities for Early Career Researcher leadership and empowerment within project structures. We suggest concrete ways to advance on these topics in future years and decades.
How to cite. Ward, P. J., Buijs, S., Ciurean, R., Claassen, J., Daniell, J., De Polt, K., Duncan, M., Gottardo, S., Hochrainer-Stigler, S., Šakić Trogrlić, R., Schlumberger, J., Tiggeloven, T., Torresan, S., van Maanen, N., Warren, A., Álvarez-Albelo, C. D., Banks, V., Blanz, B., Casartelli, V., Correa González, J., Crummy, J., Daloz, A. S., de Ruiter, M. C., Díaz-Hernández, J. J., Díaz-Pacheco, J., Dorta Antequera, P., Ferrario, D., García-González, S., Gill, J., Hernández-Martín, R., Jäger, W., López-Díez, A., Ma, L., Mysiak, J., Ngoc Nguyen, D., Padrón Fumero, N., Petrescu, E.-C., Reiter, K., Sillmann, J., and Smale, L.: Reducing Risk Together: moving towards a more holistic approach to multi-(hazard-)risk assessment and management, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2025-5897, 2025.
Competing interests: Some authors are members of the editorial board of Natural Hazards and Earth System Sciences
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Philip J. Ward
CORRESPONDING AUTHOR
Vrije Universiteit Amsterdam, De Boelelaan 1111, 1081 HV Amsterdam, the Netherlands
Boussinesqweg 1, 2629 HV Delft, the Netherlands
Sophie Buijs
Vrije Universiteit Amsterdam, De Boelelaan 1111, 1081 HV Amsterdam, the Netherlands
Roxana Ciurean
British Geological Survey, Nicker Hill, Keyworth, Nottingham, NG12 5GG, United Kingdom
Judith Claassen
Vrije Universiteit Amsterdam, De Boelelaan 1111, 1081 HV Amsterdam, the Netherlands
James Daniell
Risklayer, Bismarckstraße 59, 76133 Karlsruhe, Germany
Kelley De Polt
Vrije Universiteit Amsterdam, De Boelelaan 1111, 1081 HV Amsterdam, the Netherlands
Max Planck Institute for Biogeochemistry, Hans-Knöll-Str. 10 07745 Jena, Germany
Melanie Duncan
British Geological Survey, The Lyell Centre, Research Avenue South, Edinburgh, EH14 4AP, UK
Stefania Gottardo
Venice Ca’ Foscari University, Edificio Porta dell’Innovazione, 2nd floor, Via della Libertà 12, Venice, 30175, Veneto, Italy
CMCC Foundation - Euro-Mediterranean Center on Climate Change, Edificio Porta dell’Innovazione, 2nd floor, Via della Libertà 12, Venice, 30175, Venice, Italy
Stefan Hochrainer-Stigler
International Institute for Applied Systems Analysis (IIASA), Schlosspl. 1, 2361, Laxenburg, Austria
Robert Šakić Trogrlić
International Institute for Applied Systems Analysis (IIASA), Schlosspl. 1, 2361, Laxenburg, Austria
Julius Schlumberger
Vrije Universiteit Amsterdam, De Boelelaan 1111, 1081 HV Amsterdam, the Netherlands
Boussinesqweg 1, 2629 HV Delft, the Netherlands
Timothy Tiggeloven
Vrije Universiteit Amsterdam, De Boelelaan 1111, 1081 HV Amsterdam, the Netherlands
CMCC Foundation - Euro-Mediterranean Center on Climate Change, Edificio Porta dell’Innovazione, 2nd floor, Via della Libertà 12, Venice, 30175, Venice, Italy
Silvia Torresan
Venice Ca’ Foscari University, Edificio Porta dell’Innovazione, 2nd floor, Via della Libertà 12, Venice, 30175, Veneto, Italy
CMCC Foundation - Euro-Mediterranean Center on Climate Change, Edificio Porta dell’Innovazione, 2nd floor, Via della Libertà 12, Venice, 30175, Venice, Italy
Nicole van Maanen
Vrije Universiteit Amsterdam, De Boelelaan 1111, 1081 HV Amsterdam, the Netherlands
Andrew Warren
Boussinesqweg 1, 2629 HV Delft, the Netherlands
Carmen D. Álvarez-Albelo
University of La Laguna (ULL), Calle Padre Herrera, s/n, 38200 San Cristóbal de La Laguna, Tenerife, Spain
Vanessa Banks
British Geological Survey, Nicker Hill, Keyworth, Nottingham, NG12 5GG, United Kingdom
Benjamin Blanz
University of Hamburg, Grindelberg 5, 20144 Hamburg, Germany
Veronica Casartelli
Venice Ca’ Foscari University, Edificio Porta dell’Innovazione, 2nd floor, Via della Libertà 12, Venice, 30175, Veneto, Italy
CMCC Foundation - Euro-Mediterranean Center on Climate Change, Edificio Porta dell’Innovazione, 2nd floor, Via della Libertà 12, Venice, 30175, Venice, Italy
Jordan Correa González
University of La Laguna (ULL), Calle Padre Herrera, s/n, 38200 San Cristóbal de La Laguna, Tenerife, Spain
Julia Crummy
British Geological Survey, The Lyell Centre, Research Avenue South, Edinburgh, EH14 4AP, UK
Anne Sophie Daloz
Center for International Climate Research (CICERO), Postboks 1129 Blindern, 0318 Oslo, Norway
Marleen C. de Ruiter
Vrije Universiteit Amsterdam, De Boelelaan 1111, 1081 HV Amsterdam, the Netherlands
Juan José Díaz-Hernández
University of La Laguna (ULL), Calle Padre Herrera, s/n, 38200 San Cristóbal de La Laguna, Tenerife, Spain
Jaime Díaz-Pacheco
University of La Laguna (ULL), Calle Padre Herrera, s/n, 38200 San Cristóbal de La Laguna, Tenerife, Spain
Pedro Dorta Antequera
University of La Laguna (ULL), Calle Padre Herrera, s/n, 38200 San Cristóbal de La Laguna, Tenerife, Spain
Davide Ferrario
Venice Ca’ Foscari University, Edificio Porta dell’Innovazione, 2nd floor, Via della Libertà 12, Venice, 30175, Veneto, Italy
CMCC Foundation - Euro-Mediterranean Center on Climate Change, Edificio Porta dell’Innovazione, 2nd floor, Via della Libertà 12, Venice, 30175, Venice, Italy
Sara García-González
University of La Laguna (ULL), Calle Padre Herrera, s/n, 38200 San Cristóbal de La Laguna, Tenerife, Spain
Joel Gill
Cardiff University, School of Earth and Environmental Sciences, Cardiff University, Main Building, Park Place, CF10 3AT, Cardiff, UK
Raúl Hernández-Martín
University of La Laguna (ULL), Calle Padre Herrera, s/n, 38200 San Cristóbal de La Laguna, Tenerife, Spain
Wiebke Jäger
Vrije Universiteit Amsterdam, De Boelelaan 1111, 1081 HV Amsterdam, the Netherlands
Abel López-Díez
University of La Laguna (ULL), Calle Padre Herrera, s/n, 38200 San Cristóbal de La Laguna, Tenerife, Spain
Center for International Climate Research (CICERO), Postboks 1129 Blindern, 0318 Oslo, Norway
Jaroslav Mysiak
Venice Ca’ Foscari University, Edificio Porta dell’Innovazione, 2nd floor, Via della Libertà 12, Venice, 30175, Veneto, Italy
CMCC Foundation - Euro-Mediterranean Center on Climate Change, Edificio Porta dell’Innovazione, 2nd floor, Via della Libertà 12, Venice, 30175, Venice, Italy
Diep Ngoc Nguyen
Venice Ca’ Foscari University, Edificio Porta dell’Innovazione, 2nd floor, Via della Libertà 12, Venice, 30175, Veneto, Italy
CMCC Foundation - Euro-Mediterranean Center on Climate Change, Edificio Porta dell’Innovazione, 2nd floor, Via della Libertà 12, Venice, 30175, Venice, Italy
Noemi Padrón Fumero
University of La Laguna (ULL), Calle Padre Herrera, s/n, 38200 San Cristóbal de La Laguna, Tenerife, Spain
Eva-Cristina Petrescu
Bucharest University of Economic Studies, Piata Romana 6, Sector 1, 010374 Bucharest, Romania
Karina Reiter
International Institute for Applied Systems Analysis (IIASA), Schlosspl. 1, 2361, Laxenburg, Austria
Jana Sillmann
University of Hamburg, Grindelberg 5, 20144 Hamburg, Germany
Lara Smale
British Geological Survey, The Lyell Centre, Research Avenue South, Edinburgh, EH14 4AP, UK
Short summary
Disasters often result from interactions between different hazards, like floods triggering landslides, or earthquakes followed by tropical cyclones, so-called multi-hazards. People and societies are increasingly exposed and vulnerable to these multi-hazards. Assessing these aspects is referred to as multi-(hazard-)risk assessment and management. In this paper we synthesise key learnings from the MYRIAD-EU project, reflecting on progress and challenges faced in addressing multi-(hazard-)risk.
Disasters often result from interactions between different hazards, like floods triggering...