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Climate Impacts in the Sahel and West Africa: The Role of Climate Science in Policy Making

Author

Listed:
  • Kirsty Lewis

    (Met Office UK, Hadley Centre)

  • Carlo Buontempo

    (Met Office UK, Hadley Centre)

Abstract

Given that the population of the Sahel depends largely on rain-fed agriculture and transhumant livestock rearing, there is a growing concern about the future climate of the region as global warming may alter the availability of water resources. The lack of consensus on climate projections for West Africa results partly from the inability of climate models to capture some basic features of present-day climate variability in the region. As a result, climate model projections are difficult to analyse in terms of impacts and provide little guidance to inform decision making on adaption and resilience-building. However, by engaging with users of climate information to better understand their activities and their sensitivities to weather and climate, and by looking beyond the user to understand the wider systems context in which climate change occurs, progress can be made in interpreting climate impacts. This paper reviews the latest climate projections for West Africa and considers alternative ways in which the knowledge generated from climate science can be understood in the context of preparing for an uncertain future that provides practical help for decision makers. La population du Sahel étant dépendante de l’agriculture pluviale et de l’élevage transhumant, les futures conditions climatiques de la région constituent un sujet de préoccupation majeure, le réchauffement climatique pouvant affecter la disponibilité des ressources en eau. L’absence de consensus sur les projections climatiques en Afrique de l’Ouest résulte en partie de l’incapacité des modèles à saisir certaines des caractéristiques de la variabilité actuelle du climat. Les impacts des projections des modèles climatiques sont ainsi difficiles à analyser et peu d’informations utiles à la décision en termes d’adaptation et de renforcement de la résilience sont disponibles. Néanmoins, en travaillant de pair avec les utilisateurs d’informations climatiques pour mieux comprendre leurs activités et leur sensitivité aux conditions météorologiques et au climat tout en saisissant le contexte général des systèmes dans lequel le changement climatique se produit, l’interprétation des conséquences climatiques s’améliore. Dans un contexte marqué par l’incertitude sur l’avenir, cette note passe en revue les projections climatiques les plus récentes sur l’Afrique de l’Ouest et aborde des approches alternatives d’interprétation des sciences du climat, susceptibles d’apporter une aide concrète aux décideurs.

Suggested Citation

  • Kirsty Lewis & Carlo Buontempo, 2016. "Climate Impacts in the Sahel and West Africa: The Role of Climate Science in Policy Making," West African Papers 2, OECD Publishing.
  • Handle: RePEc:oec:swacaa:2-en
    DOI: 10.1787/5jlsmktwjcd0-en
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    Cited by:

    1. Seydou Zakari & Germaine Ibro & Bokar Moussa & Tahirou Abdoulaye, 2022. "Adaptation Strategies to Climate Change and Impacts on Household Income and Food Security: Evidence from Sahelian Region of Niger," Sustainability, MDPI, vol. 14(5), pages 1-18, March.
    2. Aissatou Ndiaye & Mounkaila Saley Moussa & Cheikh Dione & Windmanagda Sawadogo & Jan Bliefernicht & Laouali Dungall & Harald Kunstmann, 2022. "Projected Changes in Solar PV and Wind Energy Potential over West Africa: An Analysis of CORDEX-CORE Simulations," Energies, MDPI, vol. 15(24), pages 1-22, December.
    3. Divine Foundjem-Tita & Ann Degrande & Cyrille Bergaly Kamdem, 2021. "National and International Policies and Policy Instruments in the Development of Agroforestry in Chad," Sustainability, MDPI, vol. 13(16), pages 1-19, August.

    More about this item

    Keywords

    Afrique de l’Ouest; changement climatique; climate change; climate projections; climate science; climate variability; projections climatiques; sciences du climat; variabilité du climat; West Africa;
    All these keywords.

    JEL classification:

    • Q54 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Climate; Natural Disasters and their Management; Global Warming
    • Q58 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Environmental Economics: Government Policy

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