Environmental science did not exist then as a field of study. Similarly, ecology , taught in some biology departments, usually concentrated on how plants and animals interact with other plants and animals. So I ferreted out articles and other studies to serve as readings for students and material for lectures. Today, piles of recent environmental textbooks are available. Scientific research has greatly expanded knowledge about environmental degradation.
Surveys now indicate a high degree of public concern about environmental stress .
Numerous laws aim to help clean up and protect our environment. Today everyone professes to be some shade of green.