World's Most Dangerous Places to Breathe

In December 1952, the Great Smog that settled over the city of London for four deadly days claimed the lives of more than 4,000 people that winter. In 1948, a similar soot-filled cloud was responsible for dozens of deaths in Donora, Pennsylvania.

Continue Reading

NOW WATCH: Executive Life videos

Business Insider Emails & Alerts

Site highlights each day to your inbox.

Follow Business Insider Australia on Facebook, Twitter, LinkedIn, and Instagram.