It triggered a memory when I was walking through the fog today. I remember the programme I saw about the killer fog down in London in 1952 when 17,000 died from it. And I thought, “Yes, it’s always about London but we had the same fogs up here in the north and in Leeds."

I can remember when I was at Thoresby High School on Great George Street when I was about 13 or 14 and we had a really awful smog and when we left school there was no transport to bring us home and we had to walk through the smog. At the time I lived in Wortley and I can remember tying my school scarf round my face, over my nose and mouth, so I didn’t breath it in. And you couldn’t see your hand in front of your face. There was no transport, nothing. And you had to walk, you were on your own and it was yellow and thick. Sound was muffled, there was no sound either. It was quite surreal.

And I got home and took the scarf off and my face was black with soot, my hair was all messed. It was all from the smoke coming from the chimneys on the back to back houses - hundreds of them.

The Clean Air Act, when it came out, changed Leeds.