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Adaptation to Climate Change in Water, Sanitation and Hygiene: Assessing risks, appraising options in Africa


rapport Jan 2014 ; 98 pages
Aut. Roger Calow & Richard Carter & Julian Doczi & Naomi Oates & Ian Ross
Ed. ODI - London
Téléchargeable sous format: PdF (4 410 ko)
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Résumé:
Ce rapport présente les conclusions d’une recherche axée sur les risques posés par le changement climatique sur la délivrance des services d’eau, d’assainissement et d’hygiène en Afrique. Il s’appuie sur une revue de différents cas d’étude au Malawi, en Sierra Leone et en Tanzanie. Un document d’étude complémentaire fournit les données et résultats détaillés des projets cités.
Abstract:
This report presents the findings of research into the risks to delivery of WASH results posed by climate change in Africa, drawing on rapid case study reviews of WASH programming in Malawi, Sierra Leone and Tanzania. A separate Case Study Report provides further detail on country background and findings.
Given the uncertainties with rainfall projections, but also the known risks associated with existing variability, there are strong arguments for a vulnerability rather than an impact-led approach to risk assessment and planning. This implies a stronger focus on ensuring the reliability and protection of drinking water sources and simple changes to latrine design to reduce the risks of flooding under current climate variability as a first step towards adaptation through relatively low cost changes in design or practice.
Contents:
1 Climate change adaptation and WASH 1
1.1 WASH context 1
1.2 Climate change and WASH: risks and uncertainties 3
1.3 Risk screening approaches 6
1.4 Re-thinking the problem: from climate change and WASH to WASH governance in an era of climate change 9
1.5 Project objectives 11
2 Risk analysis - approach and key findings 12
2.1 Introduction 12
2.2 Climate trends and projections 15
2.3 Malawi case study 16
2.4 Sierra Leone case study 19
2.5 Tanzania case study 22
2.6 Emerging issues 27
3 Economic analysis of adaptation options 28
3.1 Introduction 28
3.2 Issues in CBA of adaptation in WASH 29
3.3 Overview of the approach used in case study examples 31
3.4 Country examples 35
3.5 Discussion of overall results 46
4 Conclusions and next steps 49

Mots clefs:

Afrique (DT) (OP) , climat (DT) (OP) , risques majeurs (DT) (OP)

Editeur/Diffuseur:

ODI - Overseas Development Institute - London - Royaume Uni
    

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