Cotton in West and Central Africa: from the agricultural revolution to the agro-ecological transition

Since the 1970s, cotton has been a driving force in transformation of agricultural production systems and key element local economies savannah areas West Central Africa (WCA). However, sustainability cotton-based is often debated because their effects on soils negative impacts chemical pest control environment human health. Through drastic reforms, WCA sector overcame crises, showing its resilience. Today, research should be mobilized to help tackle major challenges: i) economic (price volatility, producers’ incomes), ii) social (inclusion vulnerable groups, role women young people, etc.) iii) environmental (impact pesticides, soil degradation, linked climate change. The articles published this issue present some results perspectives work, which can improving WCA, open paths towards an agro-ecological transition address new challenges.