This chapter is primarily conceptual in its outlook, seeking to explore, develop, and go beyond the concept ‘Capitalocene’. The ‘Capitalocene’ names global capitalism as the principal social formation, or ‘world-ecology’ more precisely, which is bringing about changes in the Earth System and causing climate change. The premise of this study is that the way the ‘Capitalocene’ has been used in the academic literature exhibits two shortcomings that undermine its utility: on the one hand, there has been an insufficient theorization of the role of states in global capitalism’s ‘environment-making,’ while on the other, there has been a similar lack of attention to how transformation can be pursued through human agential forces. The chapter first explores Marxist literature from the field of International Relations (IR) for insights on possible ways forward, before turning to the assemblage work of Gilles Deleuze and Felix Guattari. A Deleuzoguattarian assemblage approach can offer a novel vantage point from which to view how states serve global capitalism as ‘models of realization,’ but also how social movement ‘war-machine’ assemblages can contest and transform these bimodal formations in their current destructive composition. The chapter thus argues that the assemblage work of Deleuze and Guattari offers promising, yet still relatively underexplored, theoretical resources for those seeking to illuminate the disruptive role of global capitalism on the Earth System and to pursue avenues of contestation/transformation.