The Anthropocene is described as a dangerous and unpredictable era in which fossil-fueled ways of life undermine the planetary systems on which human societies depend. It speaks of a new world of globalized and manufactured risks where neither security nor environment can be interpreted or acted upon in traditional ways. In this paper we examine how debates on the Anthropocene unfold in global politics and how they challenge core assumptions in International Relations. Through a structured analysis of 52 peer-reviewed journal articles, we identify three Anthropocene discourses that speak of new environmental realities for global politics. These are referred to as the endangered world, the entangled world, and the extractivist world. While each discourse describes an increasingly interconnected and fragile world in which conventional binaries such as inside/outside, North/South and us/them can no longer be taken for granted, disagreement prevails over what needs to be secured and by whom.