Acknowledgements

We're indebted to all the instructors who have reviewed the manuscript and made helpful suggestions, corrections, and recommendations for improving this book. Space does not permit inclusion of all the excellent ideas that were provided, but we will continue to do our best to incorporate the insights reviewers have given us. In addition, all of us owe a big debt to the many scholars whose work forms the basis of our understanding of environmental science. We stand on the shoulders of giants. If errors persist in spite of our best efforts to root them out, it is our responsibility.

We express our gratitude to the entire McGraw-Hill book team for their wonderful work in putting together this edition. Kathy Loewenberg oversaw the developmental stages and has made many creative contributions to this book. Cathy Conroy has done a superb job of copy editing, correcting errors, and improving our prose. Jane Mohr and Rose Koos were the production project managers and kept everything running smoothly. Connie Mueller found exceptional photographs. The folks at Precision Graphics did an excellent job of composition and page layout. Heather Wagner, and Marge Kemp have supported this project with their enthusiasm and creative ideas. We would also like to thank the attendees of the McGraw-Hill Environmental Science Symposium in Bellingham, Washington. Matthew Laposata, Allan Matthias, Kenneth Rhinehart, Royal Berglee, Nicole Welch, Paul Rowland, Lynnette Danzl-Tauer, Catherine Christie, Linda Fitzhugh, David Charlet, David Hassenzahl, and Stacy Smith contributed to many lively discussions and their suggestions were gratefully received and incorporated wherever possible in this edition.

The following individuals provided reviews for this book. We appreciated their input and thank them for their many valuable comments and suggestions.

Shannon A. Bliss
Cerro Coso Community College

Catherine W. Carter
Georgia Perimeter College

Laurie S. Eberhardt
Valparaiso University

Brad C. Fiero
Pima Community College

Steven P. Frysinger
James Madison University, Harrisonburg

Zofia E. Gagnon
Marist College

Carey A. Gazis
Central Washington University

Marcia L. Gillette
Indiana University, Kokomo

Daniel F. Gleason
Georgia Southern University

Lawrence J. Gray
Utah Valley State College

Mark F. Hammer
Wayne State College

Charles Kaminski
Middlesex Community College

Paul Kimball
Northeast Iowa Community College

Ned J. Knight
Linfield College

Jeff Kushner
James Madison University

Matthew Laposata
Kennesaw State University

Kurt M. Leuschner
College of the Desert

Edward M. Lignowski
Holy Family College

Les M. Lynn
Bergen Community College

Timothy F. Lyon
Ball State University

Janet S. MacFall
Elon University

Nancy Jean Mann
Cuesta College

Ken R. Marion
University of Alabama, Birmingham

Thomas C. Moon
California University of Pennsylvania

Michele Morek
Brescia University

Michael J. Neilson
The University of Alabama, Birmingham

Pamela Pape-Lindstrom
Everett Community College

David R. Perault
Lynchburg College

Ervand M. Peterson
Sonoma State University

Julie Phillips
De Anza College

Mark D. Plunkett
Bellevue Community College

John M. Pratte
Kennesaw State University

Robert J. Sager
Pierce College

Ronald L. Sass
Rice University

Bruce A. Schulte
Georgia Southern University

Julie A. Seiter
Oakland Community College

Jill Singer
Buffalo State College

Ronald C. Sundell
Northern Michigan University

John A. Tiedemann
Monmouth University

Edward R. Wells
Wilson College

Thomas B. Wilson
University of Arizona

Bruce C. Wyman
McNeese State University