For this Thanksgiving, we're re-airing an HTW classic. This episode originally premiered November 23, 2020.

November 24, 1966. Millions of spectators flood Broadway in New York City to watch the Macy’s Day Parade on Thanksgiving morning. The iconic floats – Superman, Popeye, Smokey the Bear – are set against a grey sky that can only be described as noxious. A smog of pollutants is trapped over New York City, and it will ultimately kill nearly 200 people. How did the 1966 Thanksgiving Smog help usher in a new era of environmental protection? And how have we been thinking about environmental disasters all wrong?

Special thanks to our guest Professor Frank Uekotter, author of The Age of Smoke.

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