If we continue to address the issue of the environment where we live as though we're the only species that lives here, we'll create a disaster for ourselves.

It was truly an astonishing grassroots explosion, ... The objective was to get a nationwide demonstration of concern for the environment so large that it would shake the political establishment out of its lethargy.

Nuclear war is not inevitable, but major degradation of our environment with grave consequences is inevitable unless we reverse the trend.

Loads of chemicals and hazardous wastes have been introduced into the atmosphere that didn't even exist in 1948. The environmental condition of the planet is far worse than it was 42 years ago.

The most important environmental issue is one that is rarely mentioned, and that is the lack of a conservation ethic in our culture.

The ultimate test of man's conscience may be his willingness to sacrifice something today for future generations whose words of thanks will not be heard.