"From 30 June to 5 July 2012, the International Union for Conservation of Nature (IUCN) Academy of Environmental Law held its 10th Annual Colloquium at the University of Maryland Francis King Carey School of Law. The Colloquium was held just a week after the conclusion of the once-a-decade UN Conference on Sustainable Development, also known as the 'Rio+20' earth summit. At the Colloquium, 250 environmental law experts from 30 countries on six continents focused on the future of global environmental law in the wake of the Rio+20 gathering. This provided a unique opportunity for top scholars to discuss future directions for global environmental law and policy. The Colloquium theme was broadly designed to stimulate presentations touching on all aspects of environmental law. It spawned more than 150 presentations spanning the full spectrum of topics in this rapidly growing field, as reflected in this publication. This book is organized into three parts: environmental governance frameworks, specific environmental challenges and assessment of various governance models... This book is representative of the wide-ranging presentations at the IUCN Academy of Environmental Law's 10th Colloqium."--Introduction.