I spent one day in Glasgow last week at COP26 in a darkened church hall on the River Clyde that had stain glass windows painted with pictures of men building ships.

It was a stone’s throw from the once mighty merchant yards of the Govan Shipbuilders such as Fairfields, which is now constructing destroyers for the Royal Navy under the BAE banner.

I was there to listen to a debate on the Just Transition, the sister to Climate Action, where speakers outlined the need to ensure social fairness alongside decarbonisation.