Center for Business and Government, John F. Kennedy School of Government
In this article, the authors examine the role and limitations of science in the important policy domain of environmental risk management. In particular, they offer a detailed account of the use - and misuse - of science by the Environmental Protection Agency (EPA) in its efforts to justify recent changes to its national ambient air quality standards (NAAQS) for ozone and particulate matter (PM). Environmental risk management is an area of public policy where science plays a vital role for what it reveals about the health effects associated with human exposure to different substances. It is also an area, however, where agencies have often exaggerated the role of science and thus have escaped responsibility for giving careful reasons for the value judgments implicit in their decision-making.
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