Could post a photo of the magnificent mountains behind us showing that they are mostly haze or of the sea showing that the distant blue grey melds with the sky and this morning there is no line of demarcation. But difficult for a photograph to show what isn’t there, and the mountains are shrouded, faint hulks looming above us. Not mist but desert dust from the Middle East. With us until Thursday, the Met Office says, though it’s dropping by evening and the fine particulate matter hasn’t predominated.