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Metropolitan smog alerts are prominent public information campaigns designed to enhance public health and to curb driving and other emissions. Unlike many other voluntary information-based environmental policies, air quality alerts target household behavior via forecast information about ambient concentrations rather than firm or product characteristics. This paper explores behaviors with high emissions (driving) and with high exposure (outdoor recreation) and underscores the difference between altruistic and risk aversion motivations. Behavioral impacts are identified using the threshold nature of daily air quality forecasts. A regression discontinuity (RD) design finds elderly users and exercisers tend to curtail their use of a major park following smog alerts. The RD design also reveals that households do not drive less on smog alert days. Juxtaposing high emissions behavior with high exposure behavior in the same study highlights how public forecast information may better trigger some responses and struggle to trigger others. [ABSTRACT FROM AUTHOR]

Focuses on criticisms against the science panel at the U.S. Centers for Disease Control and Prevention (CDC) in Atlanta, Georgia. Implications of changes in the makeup of the advisory committee; Discussions regarding environmental regulations; Roles of the CDC National Center for Environmental Health in addressing public-health dangers.