Engineering is "the people-serving profession." The work of engineers involves interaction with clients, other engineers, and the public at large. More than any other profession, their work also directly involves and affects the environment. This book makes the case that engineers have special professional obligations to protect and enhance the environment, and the authors - one an engineer and the other a philosopher - seek to provide an ethical basis for these obligations. Students, as well as practicing engineers, will find much of interest in this well-argued and thought-provoking book.