Few books currently exist that cover such a wide spectrum of topics. The chapters dealing with air pollution from mobile sources, air pollution and health effects and air quality modelling fall into the air pollution category while the ones related to microalgae for carbon dioxide sequestration/biofuels production, fuel cells, and solar energy technology, respectively, can be ascribed to the energy topic. Several technologies to handle a wide spectrum of environmental pollutants are taken into account in numerous chapters. The chapter on biodiversity is clearly related to the conservation issue, while the water pollution subject is tackled by the chapter on water quality monitoring. Finally, a general analysis on green business, as well as a chapter on grid/cloud computing technology for collaborative problem solving and shared resources management conclude the work. Because of its breadth of coverage, this book is particularly useful as a graduate text.