The methods that EPA introduced after 1970 to reduce air-pollutant emissions worked for a while, but over time have become progressively less effective.

It is simply economically impossible to require controls that even approach zero emissions.

What I have experienced over time is that environmental problems are easier to deal with in ways that don't go into their interconnections to the rest of what we are.

The age of innocent faith in science and technology may be over.

After all, despite the economic advantage to firms that employed child labor, it was in the social interest, as a national policy, to abolish it - removing that advantage for all firms.

The modern assault on the environment began about 50 years ago, during and immediately after World War II.