In a December 9 article at Politico Magazine, Erica Peterson went after Louisville's "urban heat island" problem, where "a city’s center experiences significantly hotter temperatures than its less-developed surroundings."
In doing so, Peterson rolled out some very questionable statistics. But it's her contention that "As pollution and stagnant air bake in the sun" in the city's heat island, "air quality worsens" that was really over the top. If that statement were true, Louisville's air quality should have deteriorated as its heat island problem has grown. The truth is, as Powerline's Steven Hayward demonstrated yesterday, that the Derby City's air quality has significantly improved.