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Cost of coastal environmental degradation, multi hazard risk assessment and cost benefit analysis : policy brief (anglais)

Coastal environmental degradation as a result of erosion and flooding poses a significant threat to the West African coastal environment, its people and its assets; the threat will increase in coming years due to the impact of climate change.The knowledge base on causes and consequences of coastal environmental degradation in West-Africa needs to be broadened and remediation solutions must be proposed and assessed.In order to support informed and ultimately sustainable decision-making, a methodology enabling the calculation of the cost of environmental degradation and the evaluation of the cost-efficiency of DRR and CCA measures is proposed.The general validity and utility of the methodology has been demonstrated. It offers an operational framework that can be further improved by integrating better data or information as it becomes available. In order to address these challenges, the knowledge base on causes and consequences of coastal environmentaldegradation in West-Africa needs to be broadened and remediation solutions must be proposed andassessed.The present study aims at contributing to informed and ultimately sustainable decision-making in the field of DRR and CCA measures, by proposing a methodology enabling the calculation of the cost of environmental degradation and the evaluation of the cost-efficiency of DRR and CCA measures. This methodology has been tested on one pilot in each of the participating countries: Benin, Côte d’Ivoire, Ghana and Togo.

Information

  • Date du document

    2018/05/29

  • Type de document

    Fiche

  • Numéro du rapport

    126693

  • Volume

    1

  • Total Volume(s)

    1

  • Pays

    Afrique,

  • Région

    Afrique,

  • Date de publication

    2018/05/30

  • Disclosure Status

    Disclosed

  • Titre du rapport

    policy brief

  • Mots clé

    land use;pilot site;environmental degradation;damage function;flood;impact of climate change;river flooding;places of worship;construction of dykes;coastal flood;coastal risk;coastal area;cost-benefit analysis;water depth;national authority;probability of occurrence;climate change impact;quality of data;sea level rise;loss of biodiversity;Coastal Zone Management;Disaster Risk Reduction;operation and management;net present value;availability of data;cost of measures;local climate change;present study;coastal environment;study area;ecosystem service;demographic growth;natural areas;exposure indicator;coastal ecosystem;flood map;agriculture system;flood proofing;flood warning;flood hazard;local knowledge;flood depth;

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