Environmental quality was drastically improved while economic activity grew by the simple expedient of removing lead from gasoline - which prevented it from entering the environment.

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.

What is needed now is a transformation of the major systems of production more profound than even the sweeping post-World War II changes in production technology.

Barry Commoner Quotes