Environmental Science: A Study of Interrelationships, 6th Edition
Focusing on concepts from the beginning and presenting topics with a practical optimism that clearly defines both problems and possible solutions, Environmental Science: A Study of Interrelationships incorporates an easy-to-understand conceptual approach. Value priced at about $10 less than other full-color environmental science texts, this well-respected text is ideal for your nonmajors' introductory environmental science course.
Enger, Eldon D.; Bradley F. Smith; and Barry W. Barker. Environmental Science: A Study of Interrelationships, 6th Edition. Boston: McGraw Hill.