This book provides a range of perspectives from some of the leading environmental academics and practitioners active in Europe today on some of the most pressing contemporary challenges in EU environmental law and governance. The book focuses on three key cross-cutting issues each of which is carefully analysed through the lens of governance. The first theme to be addressed is that of climate change and the problems it poses for EU governance. The second part of the book deals with the challenge of integrating environmental considerations into other policy areas, as required by the Treaty on the Functioning of the European Union, as well as the EU's Charter of Fundamental Rights. While the third theme focuses on the important challenge of improving environmental enforcement within the EU, considering issues such as the Aarhus Convention and the development of the Commission's work on implementation and enforcement over the last twenty years. Throughout the book the three selected themes are situated within the broader ongoing debate about the changing nature of European environmental governance, covering topics such as the development of European environmental governance post-Lisbon and how such development fits with broader trends in European governance theory and policy. The book contains contributions from experts in the field including Mary Robinson, Alan Boyle, Ludwig Kramer and Liam Cashman, and will be of interest to academics, students and practitioners of EU environmental law.