Book excerpt: Conducting a systematic and comparative review of energy and environmental issues, especially at the regional and national levels, can improve communication among different disciplines and be helpful for managers, politicians, and stakeholders involved in energy and environmental systems. Sustainable Systems and Energy Management at the Regional Level: Comparative Approaches provides an interdisciplinary look at the possible relationships which exist between energy and the environment. Relevant theoretical frameworks and the latest empirical research findings on the impacts of regulation policies, market-facilitation policies, and communication models and policies are reviewed with the aim of improving understanding and strategy.