Clean air – 70 years on from the Great Smog of London

5 December 2022 marked the 70th anniversary of the Great Smog of London when a period of unusually cold weather, combined with an anticyclone and windless conditions, collected airborne pollutants—mostly arising from the use of coal-fired heating—to form a thick layer of smog over the city. It lasted from Friday 5 December to Tuesday 9 […]