This book outlines the processes and applications of environmentalism and sustainability in detail. It will explain broadly the various techniques and methods of sustainable use of environmental resources. Environmentalism refers to a philosophy and world-view which stresses on the optimum and sustainable use of natural resources. It includes concepts like biodiversity preservation, ecology conservation, land ethics and biophilia hypothesis, etc. This book elucidates the concepts and innovative models around prospective development with respect to environmentalism and sustainability. Also included in this book is a detailed explanation of the various applications related to this field. Selected concepts that redefine the field have been presented in this text. The book is appropriate for those seeking detailed information in this area.