This article proposes and evaluates four hypotheses about US pollution and environmental policy over the last half … century. First, air and water pollution have declined substantially, although greenhouse gas emissions have not. Second …, environmental policy explains a large share of these trends. Third, much of the regulation of air and drinking water pollution has …

Using the most comprehensive data file ever compiled on air pollution, water pollution, environmental regulations, and … air pollution regulations were effective at reducing ambient concentrations of particulate matter, sulfur dioxide, and … nitrogen dioxide. The most successful air pollution regulation is associated with a modest and statistically insignificant …

the country level with data on pollution intensity at the industry level to show that countries with laxer environmental …. We propose an instrument for environmental regulation based on meteorological determinants of pollution dispersion identi …...ed by the atmospheric pollution literature. We find that the effect of environmental regulation on the pattern of trade is …

small, for two reasons. First, services account for only a small fraction of overall pollution. For none of five major air … relation to the environment, because services in general contribute relatively little to overall pollution, and those …

China's environmental regulators have sought to reduce the Yangtze River's water pollution. We document that this …, the regulation has focused on reducing one dimension of water pollution called chemical oxygen demand (COD). Thus, local …

Protection Agency's Air Quality System (AQS) to find the level of pollution in those locations on the dates the survey questions … interviewed on days when air pollution was worse than the local seasonal average report lower levels of happiness. Combining these … for air pollution …