It's 70 years since the Great Smog of London brought the city to a standstill and led to the deaths of thousands of people. More: https://bbc.in/3AZUx4A | BBC World Service

The Fog That Killed 12,000 People: London’s Great Smog (1952) #GreatSmog #LondonHistory #OnThisDay On this day in 1952, a deadly blanket of smog covered London. What started as a cold winter fog turned into a toxic gas chamber that lasted 5 days. Visibility dropped to zero, and 12,000 people lost their lives, forcing the government to finally pass the Clean Air Act. 🇬🇧🌫️☠️ | Big Bang Bogan