Everyone has heard that all flights over the British Isles have been grounded because of volcanic ash in the atmosphere. I visited London City Airport out of curiosity. It was like Waiting for Godot. Nothing happens, nobody comes, nobody goes. It’s awful. By contrast the Eurostar terminal at St Pancras is having a field day and so are the ferries to the continent. To think this strange situation has come about because of volcanic activity hundreds of kilometres away.