Emissions trading is becoming an increasingly popular policy instrument with growing diversity in design. This book examines emissions trading design, emissions trading implementation problems and how to address them. In an easily accessible way, the book examines advantages and disadvantages of emissions trading and presents policy considerations that designers should not neglect. Stefan Weishaar reviews the main implementation challenges emissions trading faces and assesses how they can be addressed in an effective, efficient and acceptable way. By reviewing existing and emerging emissions trading systems around the world, the book describes why emissions trading systems are used in an environmental policy mix, how an emissions trading system can be designed, what special design issues should be duly considered, and with whom emissions trading systems can be linked. Written from both a legal and an economic perspective, this book will appeal to academic researchers and postgraduate students in environmental law and policy, and those focused on energy and climate change issues. It will also be essential reading for policymakers, managers and consultants working in this field.