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The Great Green Wall, a bulwark against food insecurity? Evidence from Nigeria

Author

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  • Pauline Castaing

    (World Bank Group)

  • Antoine Leblois

    (CEE-M - Centre d'Economie de l'Environnement - Montpellier - CNRS - Centre National de la Recherche Scientifique - 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 - UM - Université de Montpellier)

Abstract

The Great Green Wall is a crosscountry initiative to improve the environment of desertification areas in Sub-Saharan Africa. This paper refers to the implementation of Great Green Wall projects in Nigeria to document the local impact of environmental restoration on children's food security and health. Our identification strategy uses two types of variation to capture these effects. The spatial variation comes from the heterogeneous exposure of the children to these new environmental restoration programs. The temporal variation comes from sudden changes between 2013 and 2016. Taking the height-to-age z-score as main outcome of interest, we find a significant and robust health improvement for children living next to community-based orchards whereas proximity to shelterbelts generates mixed impacts. Gains in health (+0.5 standard deviation in the height index) coexist with higher dietary diversity score for children living near orchards.

Suggested Citation

  • Pauline Castaing & Antoine Leblois, 2023. "The Great Green Wall, a bulwark against food insecurity? Evidence from Nigeria," Working Papers hal-03958274, HAL.
    • Handle: RePEc:hal:wpaper:hal-03958274
    Note: View the original document on HAL open archive server: https://hal.inrae.fr/hal-03958274v3
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    Keywords

    Environmental Restoration; Food security; Nigeria; Nutrition; Impact evaluation;
    All these keywords.

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