Sustainability refers to the process that enables the achievement of technological advancements and the use of resources in a manner that meets human needs in the present day as well as in the future scenario. Sustainability builds on sustainable development, which embraces a combination of various environmental, economic and social factors. Healthy environment and healthy ecosystems are crucial for the sustenance of life on earth. The key strategies to reduce negative human impact on the environment are environmentally-friendly chemical engineering, resource management and environmental protection. Mitigation solutions are also available in effective urban planning, sustainable agriculture, transport, etc. This book unravels the central aspects of this field which will be crucial for the progress of this field in the future. It studies, analyzes and upholds the pillars of environmental sustainability and its utmost significance in modern times. A coherent flow of topics, student-friendly language and extensive use of examples make this book an invaluable source of knowledge.