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SEI brief

Testing the impact chain model: exploring social vulnerability to multiple hazards and cascading effects

This project brief presents an overview of how the impact chain method can be used to explore social vulnerability to multiple hydrometeorological hazards and their cascading effects, in a case study in Halmstad Municipality, Sweden. A particular focus in this case study was the methodological research and innovation (R&I) area of co-production of knowledge, with lessons learned presented here.

Karin André, Mathilda Englund, Åsa Gerger Swartling / Published on 20 October 2022
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Citation

André, K., Englund, M., & Gerger Swartling, Å. (2022). Testing the Impact Chain Model: Exploring Social Vulnerability to Multiple Hazards and Cascading Effects. SEI Project Brief. Stockholm Environment Institute. https://doi.org/10.51414/sei2022.041

The UNCHAIN (UNpacking climate impact CHAINs) project advances climate change risk assessment frameworks aimed at informed decision-making and climate adaptation action. The research approach is based on the concepts of impact chains and co-production of knowledge.

The UNCHAIN approach supports climate change adaptation action by introducing six methodological and thematic research and innovation areas. As laid out in the Vulnerability Sourcebook (Fritzsche et al., 2014), the impact chain method considers climate risks in accordance with some of the concepts used in IPCC’s Fifth Assessment Report (AR5): hazard, exposure and vulnerability (IPCC, 2014). The method provides practical instructions and guidance for implementing vulnerability and risk assessments based on a step-by-step approach structured around eight modules (Figure 1).

UNCHAIN is centred around 11 case studies in seven countries in Europe to test changes and alterations of the current impact chain model and evaluate its effects. The case study described here is in Sweden.

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SEI authors

Karin André
Karin André

Team Leader: Cities, Communities and Consumption; Senior Research Fellow

SEI Headquarters

Mathilda Englund
Mathilda Englund

Research Associate

SEI Headquarters

Åsa Gerger Swartling
Åsa Gerger Swartling

Head of Knowledge Management, Senior Research Fellow

Global Operations

SEI Headquarters

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