Cities face double trouble: Extreme heat and air pollution mean increasing compound weather events

PHYSorg
Sep 2, 2025, 2:40 pm123 ptsTrending
U.S. cities are facing a growing threat that goes beyond hot weather or hazy air. New research from the University of Oklahoma reveals that "compound events"—periods when heat wave conditions coincide with high air pollution levels—are becoming more frequent and intense in urban areas across the United States.

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