The book quantifies the impact of in-port ships' greenhouse gas emissions and air pollution in adjacent cities, and evaluates the feasibility of implementing shore-side electricity facilities in Europe to reduce the unwanted social and environmental effects of ships at berth. The book also discusses the potential of future "green" ports and the use of shore side electricity as a means of achieving them. Individual chapters focus on the economic and social costs of in-port ships' emissions by illustrating current environmental policies to mitigate air emissions and the available abatement measures for in-port emissions. It also discusses the external cost of vessel emissions in ports as well as the impacts on air quality and human health. Examining the expected barriers to the implementation of shore- side electricity facilities, it proposes policies to accelerate the implementation of relevant mitigation measures.