This book is simple to read as it is designed with Multiple Choice Questions. Much effort has taken to provide all possible information and the subject is discussed in multiple angles to cater the diverse interests of the reader. This book is divided into twenty chapters covering Environmental pollution, Air Pollution, Atmospheric chemistry, Soil pollution, Heavy metal pollution, Water pollution, Thermal and radioactive pollution, Noise pollution, Plastic pollution,agricultural pollution, light pollution, hazardous waste and e – waste, Pollution control, Solid waste management, Climate change, Important environmental days, World environment day theme and host country, World water day themes,Air quality standards & Air quality index (AQI), Water quality standards, Noise quality standards, Important Climate Facts and COPs. Needless to say this book would be highly useful to the under graduate and post graduate students of science subject. University faculty dealing with environmental pollution and climate change would find this book as valuable reference book. In fact this book is not only meant for students and teachers but also for the people who are very much concerned with the well being of our environment.Though it is not possible to include all the information for each chapter and every term associated with environmental pollution and climate change but effort has been made to include all the information relevant to pollution and climate change. Since, most of the students use MCQ as one of their primary concerns, concentrated effort has been made to write a book that is highly usable to understand the basic and undamental concepts of Environmental pollution and Climate change.