This welcome update presents the latest in environmental laws and policies in a comprehensive exploration of the interrelationship between environmental law and the energy sector. The text covers international legal instruments and contains a new section on regulations of the major jurisdictions, including USA, UK, Norway, EU, India, and China. It addresses all major energy sources, including renewables, and addresses policy issues such as energy security. Written in plain language, this book provides an excellent resource for non-lawyers as well as lawyers working in the energy sector.