This book features a collection of papers on the issues, intricacies, and challenges relating to energy and environmental science. It offers expert coverage of the various technological aspects of sustainable energy ecosystems, including processes that improve energy efficiency and reduce CO2 and other greenhouse emissions. It also addresses the need for sustainable technologies in extractive metallurgy, materials processing, and manufacturing industries with energy efficient technologies. Some additional contributions examine renewable energy sources such as solar, wind, and biomass.