Gendron-Carrier et al. (2022) studies the effect of subway openings on urban air pollution. The authors find a null average effect, but a negative effect in cities with high initial pollution. In this comment, I perform several robustness checks on the negative effect for high-pollution cities,...

Der Schienenverkehr in Deutschland fährt bereits heute zu einem Großteil elektrisch (~90% der Verkehrsleistung auf ~60% elektrifizierten Strecken). Für eine vollständige Defossilisierung sind jedoch auch für die verbliebenen 10% Fahrleistung Lösungen von Nöten. Aufgrund der lokalen...

We investigate the impact of light rail projects on the counties they serve through two economic outcomes – growth in employment and wages. In the study, we conduct investigation for relative growth rates in employment and wages in Seattle and Denver metro area counties that are served by...

Workers in developing countries waste significant time commuting, and gaps in public transit constrain access to productive jobs. In many cities, privately-operated minibuses provide 50–100% of urban transit, at the cost of long wait times and poor personal safety for riders. Should...

This paper estimates a global CO2 emissions model using satellite data at 25 km resolution. The model incorporates industrial sources (including power, steel, cement, and refineries), fires, and non-industrial population-related factors associated with household incomes and energy requirements....