Reflections on the Structure of International Environmental Law after Half a Century

Abstract We inhabit a new geological epoch – the Anthropocene – in which humans are the major force affecting the Earth System, with potentially catastrophic results. We also live in a kaleidoscopic world with many actors, in addition to states, many different legal instruments and abrupt, rapid changes in issues and coalitions. Increasingly, we face problems of commons and public goods at multiple geographical levels. This is the reality that international environmental law now must govern. While this body of law has had certain successes in the last half-century, progress in many areas has been incremental. As this article argues, international environmental law must undergo transformational change that takes account of these critical changes in the global context, reconsiders the adequacy of legacy legal structures and treats the Earth as a holistic system with humanity as an integral part. Specifically, it needs to overcome five disconnects: (i) between the narrow anthropocentric scope of legal frameworks and the integrated character of the Earth System; (ii) between the siloed and ad hoc approach to individual environmental problems and their integrated connection in the Earth System; (iii) between the legal need for certainty and the inherent uncertainties and changes in the relevant science; (iv) between the legal prioritization of the present generation and the needs of future generations; and (v) between the theoretical recognition of the rights of marginalized and vulnerable communities and indigenous peoples in sustainable development and their practical exclusion from participation and justice.