This paper examines the impact of measures to reduce emissions from passenger transport, specifically buses, cars, and two-wheelers in Mumbai. These include converting diesel buses to compressed natural gas (CNG), as the Indian Supreme Court required in Delhi, which would necessitate an increase...

We leverage a natural experiment, where a large national automotive racing organization switched from leaded to unleaded fuel, to study how ambient lead exposure and nutrition impact learning in elementary school. The average race emitted more than 10 kilograms of lead -- a quantity similar to...

In Italy, in 2011 the Superbollo tax was introduced for newly registered cars exceeding 185 kW. Although the aim of the tax was not to reduce CO2 emission as it was actually aimed at increasing government revenues during the economic crisis, we show that it had significant and unexpected impacts...

Real-world vehicle emissions differ from the legislative emissions limits for a number of reasons. Emissions can be substantially lower but in most cases emissions in real driving conditions are higher than the type-approval values. This is especially the case for NOx emissions from diesels....

Car exhaust is a major source of air pollution, but little is known about its impacts on population health. We exploit the dispersion of emissions-cheating diesel cars - which secretly polluted up to 150 times as much as gasoline cars - across the United States from 2008-2015 as a natural...