America's air quality is better today than ever before in modern history and continues to steadily improve. How did this remarkable turnaround come about? Basing his conclusions on a painstaking compilation of long-term empirical data on air quality and emissions data extending from the pre- federalization era to the present (some dating back a century), Goklany challenges the orthodoxy that credits federal regulation for improving air quality. He shows that the air had been getting cleaner prior to-and probably would have continued to improve regardless of federalization. States and localities, after all, have always been engaged in a race to improve the quality of life, which means different things at different stages of economic development. Goklany's empirical data refute once and for all the race-to-the-bottom rationale for centralized federal regulation.
Moreover, technological advances and consumer preferences continue to play important roles in improving air quality. Goklany accordingly offers a regulatory reform agenda that would improve upon the economic efficiency and environmental sensitivity of air quality regulation.