Environmental services are an important and growing sector of the global economy and of global services trade. This book estimates the size of the U.S. and global markets for environmental services; estimates the value of trade in the sector; and identifies measures impeding environmental services trade as well as the potential impact of removing these barriers. The book focuses on three core environmental services industries: the water and waste-water services industry, the solid and hazardous waste services industry, and the remediation services industry. The book also examines trade barriers affecting providers of related services, including architecture and engineering services, management consulting services, and related scientific and technical consulting services, among others. While related services are often critical to the provision of the core services mentioned above, the former have not been systematically incorporated into trade negotiations on environmental services.