Environmental scholars and activists have been increasingly advocating for the criminalisation of “ecocide”, a term used to describe severe environmental destruction, into the Statute of the International Criminal Court. Those efforts culminated in 2021 when the Independent Expert Panel (IEP) convened by the Stop Ecocide Foundation presented a new draft definition of ecocide, which triggered significant attention within the international criminal justice field. This chapter, first, situates the efforts to criminalise ecocide within the political and normative context of international criminal law. While previous work has focused on evaluating different elements of the IEP’s definition, this chapter discusses that and earlier definitions of ecocide with respect to the degree to which they conform to both state expectations and the principled foundations of international criminal law. Second, this chapter contributes to the critical scholarship discussing the implications of pursuing socio-ecological justice through international criminal law by exploring the question whether individual criminal responsibility could be an effective tool for delivering ecojustice.