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Description of  Procedure and Substance in International Environmental Law (Pocket Books of the Hague Academy of International Law)

The interplay between procedure and substance has not been a major point of contention for international environmental lawyers. Arguably, the topics low profile is due to the mostly uncontroversial nature of the fields distinction between procedural and substantive obligations. Furthermore, the vast majority of environmental law scholars and practitioners have tended to welcome the procedural features of multilateral environmental agreements and their potential to promote regime evolution and effectiveness. However, recent developments have served to put the spotlight on certain aspects of the procedure substance topic. ICJ judgments revealed ambiguity on aspects of the customary law framework on transboundary harm prevention that the field had thought largely settled. In turn, in the treaty context, the Paris Agreements retreat from binding emissions targets and its decisive turn towards procedure reignited concerns in some quarters over the proceduralization of international environmental law. The two developments invite a closer look at the respective roles of, and the relationship between, procedure and substance in this field and, more specifically, in the context of harm prevention under customary and treaty law. Read more