The book provides a statement of learning outcomes at the beginning of every chapter, group work questions to encourage learning and environmental awareness, and discussion questions to develop critical thinking skills. The Third Edition includes more illustrations than previous editions, and the energy chapter of the Second Edition has been divided into two chapters in this edition to make the topic more manageable. An inclusive international approach highlights the contributions of scientists from around the world. Chemical structures are presented with inline figures. FEATURES The environmental data has been updated to include the effects of COVID-19. A test bank is available to instructors upon request.