This thoroughly revised and updated edition completely covers the latest theory syllabus of Energy, Environment, Ethics and Society offered to third year B.E./B. Tech. students of Rajiv Gandhi Proudyogiki Vishwavidyalaya, Bhopal (M.P.). The importance of preserving the earth’s environment and its biological diversity was amply and duly focused at the meeting of the ‘Earth Summit’ held in June 1992 at Rio de Janeiro in Brazil. The following points have been included in this edition: Ecology is the correlation between science and technology. Taking the perception of environmental attentiveness and global energy concern from school to higher technical institutions is an immeasurable challenge. The utility of the book has been enhanced with new figures to promote visual, spontaneous learning. Emphasis has been placed on case studies and applications for explaining the usefulness of various topics aimed in Appendix-B as an Innovative Updated Precious Point in Science and Technology Analytical Gallery (IUPPSTAG), in which the complete coverage of research as per the latest inventions has also been included. The book aims at: Imparting intensive and extensive knowledge on the subject so that readers can understand the role of the environment in the field of engineering. Developing analytical as well as technical skill capabilities of students so that they can characterize, transform and use materials in engineering and apply knowledge gained in solving related engineering problems. Developing the habit of scientific reasoning in the students so that they can work with open and curious mind. Salient features of the book are: It offers easy, compact and accurate study material. Independent, up-to-date and complete coverage of various topics in almost all the chapters is contained in this book. Simple, systematic and logical development of the subject with emphasis on the underlying fundamental concepts, principles and technical applications can be found here. It incorporates question bank and latest RGPV Examination Papers. It also incorporates suggestions from students and advice from reputed faculty members. It enables you to perform effectively and with confidence in the examinations in the concerned field of the subject. Basic knowledge about environment and pollution control is absolutely essential for any scientist or engineer anywhere in the world. Any research and developmental project or any technological innovation has to be planned and executed with the intellectual support of scientists and engineers. Any such enterprise will have to get prior clearance by the PREFACE Ministry of Environment or other statutory Environmental Protection Agency before it can take off. Environmental audit has been made compulsory for all industrial establishments in our country and many other countries in the world. Thus, it is obvious that basic principles regarding environment and pollution control must form an essential component of science and engineering curriculum at undergraduate and post-graduate levels. It is precisely in this context that the present effort is undertaken. This book is expected to fill the gap of a much needed textbook on “Environmental Pollution and its Control for Students of B.E./B. Tech. and M. Tech (Environmental Engineering)â€. I hope, this book will serve its