Tuesday 5th December, 1952...

...60 years ago today...>>>

http://en.wikipedia.org/wiki/Great_Smog

Fortunately, I wasn't living in London at the time, but I can remember the effects of "Smog"; Smoke mixed with Fog, in times of visiting London before the clean air act was introduced!
I was 17 years old, at the time.
...smoky, coal fires!

Paul.