L.A.’s Air Was Once A Punchline. It Could Be Again

Smog was once as much a symbol of L.A. as palm trees — a bane to public health and a national punchline on Johnny Carson’s “Tonight Show.” My guest on this California Sun podcast, Ann Carlson, author of “ Smog and Sunshine: The Surprising Story of How Los Angeles Cleaned Up Its Air .” details the decades-long battle that transformed the air from toxic to breathable. Today’s rollbacks once again…

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