decline and potential solutions. We provide the first large-scale evidence that air pollution, specifically ozone, is … associated with declines in bird abundance in the United States. We show that an air pollution regulation limiting ozone … over the past four decades have stemmed the decline in bird populations, averting the loss of 1.5 billion birds …

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 …

Do US air pollution offset markets disproportionately relocate pollution to or from low-income or minority communities … plants. We find little association of offset prices or offset-induced movements in pollution with the share of a community …

We provide a comprehensive overview of the current state of environmental governance concerning air pollution, water …