Setting the Environmental Agenda in Canada and the United States: The Cases of Dioxin and Radon

Abstract
This article uses the case of toxic substance regulation to examine the process of governmental agenda-setting. Two kinds of comparisons are employed: across-national comparison of Canada and the United States, and a comparison of two toxic substance controversies. In the case of dioxins from pulp mills, the issue emerged on the two Countries' agendas at approximately the same time. In contrast, the issue of indoor air pollution from radon reached the US regulatory agenda in 1986, but as of mid-1990 had yet to emerge as a significant regulatory issue in Canada. The comparative case analysis yields four major conclusions: (1) changes in science and technology can be important driving forces behind the emergence of an issue, but as necessary, not sufficient conditions for agenda-setting; (2) the interdependence of the two countries produces an interdependence of their regulatory agendas; (3) policy entrepreneurs play a fundamental role in forcing issues onto the governmental agenda; and (4) the incentives and influence of policy entrepreneurs is shaped by the institutional structures and political cultures of the two countries.

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