In popular imagination, London is a city of fog. The classic London fogs, the thick yellow “pea-soupers,” were born in the industrial age of the early nineteenth century. The first globally notorious instance of air pollution, they remained a constant feature of cold, windless winter days until clean air legislation in the 1960s brought about their demise. Christine L. Corton tells the story of these epic London fogs, their dangers and beauty, and their lasting effects on our culture and imagination. Here is a terrific review of the book.