In Adapting Watercourse Agreements to Developments in International Law: The Case of the Itaipu Treaty Maria A. Gwynn offers an account of the need to align watercourses agreements to the current standards and principles of international law, thereby increasing prospects for achieving sustainable development. As a case study, the author focuses on the most important hydroelectrical energy treaty in the South American region and astutely explores its implementation together with states’ practices regarding the non-navigational uses of watercourses and their commitments to environmental protection. The analysis offers a unique opportunity to assess the value of the UN Watercourses Convention in recommending states adapt their agreements to the provisions of the convention promoting equitable and reasonable uses of watercourses; an interest not only for the treaty partners but also for river basin states and the international community as a whole.

International watercourse law differs from the national laws of most countries. It was of little consequence until the Industrial Revolution but as resources have become scarcer it has taken on a much greater political and economic significance. Ibrahim Kaya's study addresses the key issues.

In Preservation of Ecosystems of International Watercourses and the Integration of Relevant Rules: An Interpretative Mechanism to Address the Fragmentation of International Law, Lee Jing takes an innovative approach to developing an international legal framework for preserving ecosystems. Deploying Article 31(3)(c) of the 1969 Vienna Convention an analytical framework is devised that examines ‘the ecosystem approach’ under international law through the prism of Article 20 of the UN Watercourses Convention. The analysis provides an enhanced normative scope and content for the UN Watercourses Convention’s approach to the obligation to preserve, taking into account contemporary developments in international law. The work demonstrates the full potential of the Vienna Convention’s Article 31(3)(c) as an integration tool in addressing the fragmentation of international law.

The United Nations Convention on the Law of the Non-Navigational Uses of International Watercourses plays a crucial role in protecting and managing international watercourses and other sources of fresh water. Boisson de Chazournes, Mbengue, Tignino, and Sangbana head a team of experts in this Commentary, examining the travaux préparatoires leading to the Convention and the practice that has developed since the adoption of the Convention in 1997. Tackling the rationale and objectives of the provisions, they offer crucial insights to the Convention's impact on the development of a universal regime for shared water resources. Examining cross-cutting topics such as the core water principles, the prevention and settlement of water disputes, the relationship between the Convention and other legal instruments, as well as the role of the ICJ and other judicial means to solve water disputes, this book is crucial to all those who seek a deep understanding of water law.

At the UN General Assembly in 1997, an overwhelming majority of States voted for the adoption of the United Nations Convention on the Law of the Non-Navigational Uses of International Watercourses – a global overarching framework governing the rights and duties of States sharing freshwater systems. Globally, there are 263 internationally shared watersheds, which drain the territories of 145 countries and represent more than forty percent of the Earth's land surface. Hence, inter-State cooperation towards the sustainable management of transboundary water supplies, in accordance with applicable international legal instruments, is a topic of crucial importance, especially in the context of the current global water crisis. This volume provides an assessment of the role and relevance of the UN Watercourses Convention and describes and evaluates its entry into force as a key component of transboundary water governance. To date, the Convention still requires further contracting States before it can enter into force. The authors describe the drafting and negotiation of the Convention and its relationship to other multilateral environmental agreements. A series of case studies assess the role of the Convention at various levels: regional (European Union, East Africa, West Africa, Central Asia, Central America and South America), river basin (e.g. the Mekong and Congo) and national (e.g. Ethiopia and Mexico). The book concludes by proposing how future implementation might further strengthen international cooperation in the management of water resources, to promote biodiversity conservation as well as sustainable and equitable use.

Problems relating to the non-navigational uses of international watercourses have the capacity to be among the most serious causes of international conflicts in the new century. The Convention adopted by the UN General Assembly on 21 May 1997 is the first comprehensive attempt to provide at the universal level a coherent set of rules for the avoidance, management and settlement of such conflicts. This book gives a brief history of the codification process leading to the adoption of the Convention and considers the conflicting approaches to the subject that have been taken over the years. It examines the Convention as future treaty law and considers its impact on customary law putting it in the context of existing relevant international instruments. It analyses the substantive principles of equitable utilisation and of no-harm, on the one hand, and the procedural obligations, on the other, and emphasises their mutual complementarity. The specific rules on the environmental protection of watercourses are given separate consideration underlining the indivisibility of water quality and water quantity issues, while the dispute settlement provisions set out in the Convention are studied with special emphasis on negotiated settlement as their ultimate aim. This book will be a compulsory tool for law makers, negotiators of future watercourse agreements and water law practitioners, as well as a required reading for students of the international law of shared natural resources.

This book, which was first published in 1992 and then updated in 2007, provides a tool for dealing with the legal and institutional aspects of water resources management within national contexts and at the level of transboundary water resources. Like its two previous editions, it seeks to cover all aspects that need to be known in order to attain good water governance, but it provides updates concerning developments since 2007. These relate, inter alia, to the following: - the “greening” of water law, which calls for the progressive integration of environmental law principles into domestic and international water law; - the adoption, by the International Law Commission in 2008, of the Draft Articles on the Law of Transboundary Aquifers, and subsequent developments; - the emergence of the right to water as a self-standing human right; - the adoption of domestic water laws supporting integrated water resources management (IWRM) and enhanced public participation in planning and decision making; - the integration into these laws of tools facilitating adaptive water management as a response to climate variability and change; - progress in the implementation of EU law; - recent international agreements and judicial decisions; - efforts of regional organizations other than the EU to steer cooperation in the management of transboundary water resources and the harmonization of national laws; - institutional mechanisms for the management of transboundary water resources (surface and underground). Unique in its scope and nature, the book identifies the legal and institutional issues arising in connection with water resources management and provides guidelines for possible solutions in a manner accessible to a wide range of readers. Thus, it is a useful reference for lawyers and non-lawyers — engineers, hydrologists, hydrogeologists, economists, sociologists — dealing with water resources within government institutions, river basin commissions, international organizations, financing institutions and academic institutions, among other things, and also for students of disciplines related to water resources.

In The Community of Interest Approach in International Water Law, Julie Gjørtz Howden identifies the normative elements of the community of interest approach, and how the approach provides a legal framework for common management of international watercourses.

Cross-border Water Trade: Legal and Interdisciplinary Perspectives is a critical assessment of one of the growing problems faced by the international community — the global water deficit. Cross-border water trade is a solution that generates ethical and economic but also legal challenges. Economic, humanitarian and environmental approaches each highlight different and sometimes conflicting aspects of the international commercialization of water. Finding an equilibrium for all the dimensions required an interdisciplinary path incorporating certain perspectives of natural law. The significance of such theoretical underpinnings is not merely academic but also quite practical, with concrete consequences for the legal status of water and its fitness for international trade.

Although the International Law Association (ILA) was established in 1873, it only turned its attention to the internationally shared water resources in 1954, when its half-century study of the applicable principles and rules of international law thereon began. The first ILA committee assigned to this task was the Rivers Committee, which, after a decade of intensive study and through several resolutions and statements, arrived unanimously at a set of articles reflecting customary international law, known as the Helsinki Rules on the Uses of the Waters of International Rivers.The Helsinki Rules, approved at the ILA 1966 Helsinki Conference, were soon widely accepted across the Globe as a non-binding authoritative source of international water law. This monograph traces the work of the ILA leading to the Helsinki Rules, analyses the Rules, and identifies their influence on and contribution to the evolution of international water law.