Dominique Escandon Valverde is a writer and engineering graduate student at Carnegie Mellon University.
Pittsburgh’s Future as a Climate Haven
If you walked the streets of Pittsburgh’s Strip District in 1924 at noon, you may have needed a lamp to cut through the thick air pollution of the city once described as “hell with the lid off.” With air twice as polluted as bad air days in modern Beijing, Pittsburgh represented the worst of the …