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Effets du changement climatique en Afrique sub-saharienne : une nouvelle publication de la Banque mondiale

Un nouveau rapport publié par la Banque mondiale intitulé « Turn Down the Heat - Climate Extremes, Regional Impacts and the Case for Resilience » fait le point récent des impacts attendus du changement climatique sur l’Afrique sub-saharienne, ainsi que sur l’Asie du sud-est et l’Asie du sud.

Résumé (par les auteurs) :

This report focuses on the risks of climate change to development in Sub-Saharan Africa, South East Asia and South Asia. Building on the 2012 report, Turn Down the Heat : Why a 4°C Warmer World Must be Avoided, this new scientific analysis examines the likely impacts of present day, 2°C and 4°C warming on agricultural production, water resources, and coastal vulnerability for affected populations. It finds many significant climate and development impacts are already being felt in some regions, and in some cases multiple threats of increasing extreme heat waves, sea level rise, more severe storms, droughts and floods are expected to have further severe negative implications for the poorest. Climate related extreme events could push households below the poverty trap threshold. High temperature extremes appear likely to affect yields of rice, wheat, maize and other important crops, adversely affecting food security. Promoting economic growth and the eradication of poverty and inequality will thus be an increasingly challenging task under future climate change. Immediate steps are needed to help countries adapt to the risks already locked in at current levels of 0.8°C warming, but with ambitious global action to drastically reduce greenhouse gas emissions, many of the worst projected climate impacts could still be avoided by holding warming below 2°C

Pour en savoir plus

Accéder au rapport complet (254 p., en anglais uniquement)

Accéder au résumé exécutif en français (39 p.)

Accéder au résumé exécutif en anglais (34 p.)

Crédits: AK-Project