Facing the adverse impacts of climate change, many people are better off migrating, whether within their country or internationally, at least for a short time. Yet for a variety of reasons, migration is not always possible. This episode of our podcast focuses on these groups, sometimes known as “trapped populations.” Why do people stay in places where their homes, livelihoods, and their very lives are threatened? We explore these questions with Caroline Zickgraf, deputy director of the Hugo Observatory at the University of Liège in Belgium.