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Regional Resilience to Climate-Induced Water Scarcity: Evidence from Seine Aval

Author

Listed:
  • Martin Henseler

    (LERN - Laboratoire d'Economie Rouen Normandie - UNIROUEN - Université de Rouen Normandie - NU - Normandie Université - IRIHS - Institut de Recherche Interdisciplinaire Homme et Société - UNIROUEN - Université de Rouen Normandie - NU - Normandie Université, PEP - Partnership for Economic Policy (PEP), Nairobi, Kenya)

  • Helene Maisonnave

    (FAI - Université Le Havre Normandie - Faculté des Affaires Internationales - ULH - Université Le Havre Normandie - NU - Normandie Université, PEP - Partnership for Economic Policy (PEP), Nairobi, Kenya)

  • Enzo Salvatore

    (LERN - Laboratoire d'Economie Rouen Normandie - UNIROUEN - Université de Rouen Normandie - NU - Normandie Université - IRIHS - Institut de Recherche Interdisciplinaire Homme et Société - UNIROUEN - Université de Rouen Normandie - NU - Normandie Université)

Abstract

This study quantifies the economy-wide impacts of climate-induced groundwater scarcity in the Seine Aval region of Normandy using a regional computable general equilibrium model. Groundwater reductions disproportionately affect water-intensive sectors. Direct output losses are moderate, but indirect effects, including higher water costs, and increased unemployment, amplify social vulnerability. Adaptation strategies targeting demand-side behaviour (household water savings) and supply-side efficiency (network leakage reduction) substantially mitigate negative effects, though neither fully offsets losses. Combined measures and integrated upstream-downstream water management are essential for improving resilience. Results underscore that groundwater scarcity represents both an environmental and socio-economic risk, with implications for sustainable development, employment, and equity in regional planning.

Suggested Citation

  • Martin Henseler & Helene Maisonnave & Enzo Salvatore, 2025. "Regional Resilience to Climate-Induced Water Scarcity: Evidence from Seine Aval," Working Papers hal-05440805, HAL.
    • Handle: RePEc:hal:wpaper:hal-05440805
    Note: View the original document on HAL open archive server: https://hal.science/hal-05440805v1
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