Source: George Washington University, 5/7/25
In a sweeping new study of more than 13,000 urban areas worldwide, researchers have mapped air pollution levels and carbon dioxide emissions, providing comprehensive global analysis of urban environmental quality. The research led by George Washington University, in collaboration with scientists from Washington University in St. Louis and the University of North Carolina at Chapel Hill, used data from satellite observations, ground-based measurements and computer models to measure city-level air pollution and the average amount of carbon dioxide released into the atmosphere in 13,189 urban areas globally. The study, which highlights regional disparities, focused on the years spanning from 2005-2019.