The deadly smog that hovered over London claimed more lives than one could imagine. Over five days, nearly 4,000 people perished. Still, this is not the full extent of the catastrophe that's ...

The Great Smog of London (1952) was a disaster nobody saw coming. It wasn’t just fog - it was a toxic mix of coal smoke and chemicals that turned London into a gas chamber. Here’s what happened.

which was different from the sulfurous smog that claimed lives in Donora, Pa., and London, England. In those places, the culprit was the burning of coal, but there was very little of that in Los ...