International Environmental Law Ulrich Beyerlin, Thilo Marauhn The new edition of this market leading textbook offers the most current overview of international environmental law. Written for students and practitioners it provides a fresh understanding of international environmental law as a whole, seen in the light of climate change, biodiversity loss, and the other serious environmental challenges facing the world. The new edition retains the manageable size of the first, with careful selection of topics and the adoption a cross-cutting synthesis of regulatory interaction in the field. It also places international environmental law in the broader context of public international law in general, revealing at the same time that international environmental law is experimental ground for developing new legal approaches towards global governance. Combining theory and practice, clarity and comprehension, the authors have written a textbook which should be required reading for all students of the subject.

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Since the early days of modern public international law, the state has been the most important subject thereof. However, today, it is neither the sole, nor necessarily the primary, actor in international (environmental) relations. In recent years, the role of the state and, notably, the ability of the state to address environmental risks and threats, have increasingly come to be scrutinised. While states' standard setting remains important, commentators have argued that the ability and willingness of states to implement and enforce such standards have major weaknesses. Nevertheless, the state remains a truly important actor in international relations. It forms part of international governance, which has become multilevel governance. This article discusses the changing role of the state in international environmental governance. It examines states as authors, addressees, and guardians of international environmental law. The article also considers the over-estimation of Westphalian concepts of sovereignty, international environmental agreements, international environmental obligations, statehood as an element of a global system of environmental governance, and the role of the state in the transformation of the international legal system.