This book gives a comprehensive discourse on the various aspects of handling various environmental concerns through the use of various approaches involving chemistry. Green chemistry can also be called environmental chemistry. In essence, it is philosophical approach which propagates a viewpoint of applying chemistry in creating more environment friendly solutions. It is deemed to be a critical part of an extensive plan for protection of human well-being and ecology. It is an economically driven and scientific methodology towards accomplishing the goals of ecological protection and sustainable progress. Incorporating technological advancements with safety of the environment is one of the crucial challenges of current times. This book explains unique approaches for the industrial processes as well as chemical laboratories which are gentle to the environment. To present an overview on step change technologies, this book has been compiled from contributions by green chemistry experts.