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Economic assessment of nature-based solutions for water-related risks

Author

Listed:
  • Philippe Le Coent

    (UMR G-EAU - Gestion de l'Eau, Acteurs, Usages - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - BRGM - Bureau de Recherches Géologiques et Minières - IRD - Institut de Recherche pour le Développement - AgroParisTech - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement - Institut Agro Montpellier - Institut Agro - Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement, BRGM - Bureau de Recherches Géologiques et Minières)

  • Cécile Hérivaux

    (BRGM - Bureau de Recherches Géologiques et Minières, UMR G-EAU - Gestion de l'Eau, Acteurs, Usages - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - BRGM - Bureau de Recherches Géologiques et Minières - IRD - Institut de Recherche pour le Développement - AgroParisTech - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement - Institut Agro Montpellier - Institut Agro - Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement)

  • Javier Calatrava

    (UPCT - Universidad Politécnica de Cartagena / Technical University of Cartagena)

  • Roxane Marchal

    (Caisse Centrale de Réassurance - parent)

  • David Moncoulon

    (Caisse Centrale de Réassurance - parent)

  • Camilo Benitez-Avila

    (Deltares [The Netherlands])

  • Mónica Altamirano

    (TU Delft - Delft University of Technology)

  • Amandine Gnonlonfin

    (UniCA - Université Côte d'Azur)

  • Ali Douai

    (GREDEG - Groupe de Recherche en Droit, Economie et Gestion - UNS - Université Nice Sophia Antipolis (1965 - 2019) - CNRS - Centre National de la Recherche Scientifique - UniCA - Université Côte d'Azur)

  • Guillaume Piton

    (UGA - Université Grenoble Alpes, IGE - Institut des Géosciences de l’Environnement - IRD - Institut de Recherche pour le Développement - INSU - CNRS - Institut national des sciences de l'Univers - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement - Fédération OSUG - Observatoire des Sciences de l'Univers de Grenoble - UGA - Université Grenoble Alpes - Grenoble INP - Institut polytechnique de Grenoble - Grenoble Institute of Technology - UGA - Université Grenoble Alpes)

  • Kieran Dartée

    (Fields Factors)

  • Thomas Biffin

    (Fields Factors)

  • Nabila Arfaoui

    (UR CONFLUENCE : Sciences et Humanités (EA 1598) - UCLy - UCLy (Lyon Catholic University))

  • Nina Graveline

    (UMR Innovation - Innovation et Développement dans l'Agriculture et l'Alimentation - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement - Institut Agro Montpellier - Institut Agro - Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement)

Abstract

Evidence are dearly needed to understand under which conditions it is relevant for decisions makers to invest in NBS for water-related risk. This chapter presents the methodological framework developed for the economic assessment of NBS for water-related risks and its application to seven case studies. We particularly develop methods for the evaluation of implementation and opportunity costs, the assessment of the reduction of damage costs, and the monetary value of co-benefits. The study confirms that the cost of implementation and maintenance of NBS strategies is lower than the cost of grey solutions for the same level of water risk management, emphasizing the better cost-effectiveness of these solutions. Benefits in terms of avoided damages are however generally not sufficient to cover investment and maintenance costs. Co-benefits represent the largest share of the value generated by NBS strategies. The overall cost-benefit analysis implemented in four cases, is positive in three case studies and negative in one. This confirms the importance to carry out thorough economic assessments for the elaboration of Natural Assurance Schemes.

Suggested Citation

  • Philippe Le Coent & Cécile Hérivaux & Javier Calatrava & Roxane Marchal & David Moncoulon & Camilo Benitez-Avila & Mónica Altamirano & Amandine Gnonlonfin & Ali Douai & Guillaume Piton & Kieran Dartée, 2023. "Economic assessment of nature-based solutions for water-related risks," Post-Print hal-04093533, HAL.
    • Handle: RePEc:hal:journl:hal-04093533
    DOI: 10.1007/978-3-031-25308-9_6
    Note: View the original document on HAL open archive server: https://hal.inrae.fr/hal-04093533v1
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    More about this item

    Keywords

    Nature Based Solution; Economic assessment; Ecosystem service; Flood risk;
    All these keywords.

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