In recent years, the debate on the establishment of a new international agency on environmental protection – a ’World Environment Organization’ – has gained substantial momentum. Several countries, including France and Germany, as well as a number of leading experts and senior international civil servants have openly supported the creation of such a new international organization. However, a number of critics have also taken the floor and brought forward important objections. This book presents a balanced selection of articles of the leading participants in this debate, including both major supporters and opponents of creating a World Environment Organization. The volume is especially relevant to students and scholars of international relations, environmental policy and international law, as well as to practitioners of diplomacy, international negotiations, and environmental policy making.