Changement climatique et migrations : qualification d’un problème, structuration d’un champ scientifique et activation de politiques publiques

Environmental migration is an issue subject to a plurality of competing qualifications. Its construction as a ?public problem? at the international level has stabilized around the issue of climate change. Focusing attention on the renewed efforts to understand this complex phenomenon, as well as the diversity of theoretical approaches and policies that have been formulated around it, this article emphasizes the need for a shift in the analytical framework: considering adaptation projects as ?actants? that produce their own political effects in fragile contexts of action would allow us to conceive of institutional responses more in tune with the needs and expectations of vulnerable populations. The example of the Sahel is used to illustrate this.