The book covers the multidisciplinary nature of environment, public awareness, case studies related to environment, current issues of environment and field experiments. The book strictly follow the syllabus designed by the University Grant Commission (UGC) for the undergraduate courses. It highlights basic terminologies in the glossary, tables, illustrations and various case studies to elaborate the topic and make easy to understand the students. This book is not only for undergraduate classes but also for post graduate classes and competitive examinations like National Entrance Exam (NET).'