International audienceAccording to the IPCC special report published on September 25, 2019 (devoted to the ocean and cryosphere in the context of climate change), the rise in sea level has greatly accelerated in recent decades, and could reach up to 1.10 meters by 2100, with dramatic repercussions for the inhabitants of low-lying coastal areas and small island states, but also for the international community as a whole. Many human beings, habitats, territories and classified sites are thus threatened by the phenomenon of rising sea levels. If this development has become an increasing concern to scientists, but also to the states most directly affected and their populations, it also raises a number of questions of international law, as evide...