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The Great Smog Descended on London More Than 70 Years Ago—And its Cause Took Almost As Long to Discover
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The Great Smog Descended on London More Than 70 Years Ago—And its Cause Took Almost As Long to Discover

Heavy fogs have long been a part of life in London. But the darkness that enveloped the city on December 5, 1952 wasn’t your typical pea-souper.
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