Climate change is profoundly modifying the earth’s environment, making certain territories uninhabitable. Faced with this known phenomenon, this article outlines a research approach for assessing the law’s role in encouraging states to preemptively protect individuals who live in deteriorating territories, notably by enabling mobility. The question is, however, far from simple, insofar as most of the ways to adapt to climate change—and particularly mobility, which has important human and social implications—require profound societal choices that anthropology has the tools to study. I therefore accompany my legal research with an anthropological approach centered around ethnography conducted at three sites—France, Guadeloupe, Senegal—where state-sponsored mobility is either being considered or already being used as an option to confront the progressive disappearance of land that is being swept away by the sea.
