The drylands in the West African Sahel region have, since the catastrophic drought event in the 1970s, been a focal point of interest in the cross field between environmental research, knowledge systems and policy intervention strategies. Major international institutions, agencies and conventions have played an important role in shaping national planning efforts aimed at reducing environmental degradation in tropical drylands and at limiting their vulnerability to external stressors such as economic globalization, climate variation, and demographic pressure. The paper summarizes how significant, internationally initiated policy documents, such as National Environmental Action Plans (from the 1980s), National Adaptation Plan of Action (from ...