REFUSE workers in Glasgow have voted to strike during COP26. Given the condition of the city, one might be tempted to ask “How will we notice the difference?”. I wonder whether the electric vehicles that will whisk COP26 delegates from their cruise ship accommodation to the conference venues have dark-tinted windows? That would help to protect them from the sight of mounds of rubbish and scurrying rats in the city to which they have been invited. Jill Stephenson, Edinburgh.