This seminar is divided into three main parts. First, students are invited to better understand the main environmental problems caused by energy production and consumption and their consequences, as well as recent trends in this area. Second, the links between the economy and the environment are explored from a macro and a microeconomic perspective. In particular, the focus is on the concept of externality and the need for state intervention. Different types of government interventions are analyzed from regulation, taxes and pollution rights to subsidies, together with their impact on enterprises. Third, management of the environment within the firm is discussed. We see how environmental issues can be integrated in the firm’s strategy and how the ISO 14000 certification can serve as a basis for developing an environmental management system (EMS). Case studies provide illustrations.