The book is written to address what we perceived to be a gap in the literature – that which views or interprets environmental law also from the perspective of non-lawyers, offering insights into both the science, technology and engineering behind and, moving forwards, the environmental law developments of the day. In light of the strong interconnection between environmental and energy activities (for example in the context of climate change mitigation or energy resources exploitation), the book puts great emphasis on new and topical themes related to energy law. Whether you are a student of environmental or energy law, or a professional working in a technical field, you should find this work useful, inspiring and accessible. As this is a first edition, we have consciously limited the content but we are hopeful that this work will continue to grow and expand with further editions, more so as we are legal experts working in a predominantly science and technology based university, Imperial College, London, and having access to a wide range of experts as well as knowledge of the latest developments, which includes our research and teaching in environmental and energy law in the multidisciplinary environment of the Centre for Environmental Policy.