Introduction : the substance and the structure of international environmental law-making and diplomacy / Ed Couzens, Tuula Honkonen, Melissa Lewis and Tuomas Kuokkanen -- An introduction to the sources, principles and regimes of international envirnmental law / Marc Pallemaerts -- Basic concepts of treaty law and the treaty-making process / Paivi Kaukoranta -- The problem-solving role of international environmental law, with special reference to water-related problems / Tuomas Kuokkanen -- A juridical-conceptual perspective on environmental governance / Louis J. Kotze -- Building institutional and managerial foudations for a new structure for environmental governance with the United Nations system / Tadanori Inomata -- International environmental diplomacy and negotiations / Sylvia Bankobeza, Elizabeth Maruma Mrema and Kilaparti Ramakrishna -- Learning from the past : a reflection on the roles of people and problems in the development of international environmental law / Ed Couzens and Melissa Lewis -- The development of the concept of sustainable development and the birth of UNEP / Donald W. Kaniaru -- An overview of milestones in international environmental diplomacy and suggestions for improved environmental governance / Shafqat Kakakhel -- The development of the principle of common but differentiated responsibilities and its place in international environmental regimes / Tuula Honkonen -- The cartagena protocol on biosafety : a personal memoir on its creation, content and implementation / Tewolde berhan Gebre Egziabher -- Future prospects for enhancing sustainable use of natural resources : the role of international environmental governance after Rio+20 / Mikourho and Ville Niinisto