Without additional protection for people who are displaced by climate change impacts, rising numbers of people may become subject to arbitrary rule or find themselves in a humanitarian emergency, without having significantly contributed to the root causes of climate change. In a high-emission scenario, large areas could become unsuitable for human habitation, due to life-threatening heat, rising sea levels, high frequency of extreme weather events, or a combination of these factors. Whereas habitability is defined by both the intensity of climate impacts and technological or financial capacities to enable adaptation, advancements in human development may cease to keep pace with mounting climate impacts in the future. One of the instruments could be a climate passport, which would enable legal transboundary migration and labor market access for a limited number of people. The passport would be endowed to citizens of countries which have become uninhabitable in their entirety. This chapter addresses this example and other political efforts to meet the needs of those displaced by climate change on different levels of governance.