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But if there is a layer of warm air between higher levels of the atmosphere and the surface (what is called a temperature inversion), that snow melts into rain.—Andrea Thompson, Scientific American, 26 Jan. 2026 Denver still has air pollution problems, due in part to its geography, which creates temperature inversions that can hold pollution near the ground.—Jenni Shearston, The Conversation, 20 Jan. 2026 During temperature inversions — when cool air is trapped close to the ground and held stagnant — pollutants are not able to disperse, according to IQAir.—Camila Pedrosa, Sacbee.com, 15 Jan. 2026 There are several reasons that explain the persistent gray during the winter months: frequent storm systems, a temperature inversion, moisture from Lake Michigan, and a weak winter sun.—David Yeomans, CBS News, 15 Jan. 2026 See All Example Sentences for temperature inversion