builds a framework to detect whether local governments skip air pollution monitoring when they expect air quality to … deteriorate. We infer this expectation from air quality alerts - public advisories based on local governments' own pollution … individual pollution monitor in Jersey City, NJ, suspected of a deliberate shutdown during the 2013 "Bridgegate" traffic jam …

Total pollution emitted by U.S. manufacturers declined over the past 30 years by about 60 percent, even though real …, which itself may result from increased net imports of pollution-intensive goods (quot;international tradequot;). I first … show that most of the decline in pollution from U.S. manufacturing has been the result of changing technology, rather than …