Spectator letters: On wind turbines, Churchill’s only exam success, and the red-trousered mayor of Bristol
When the wind blows Sir: Clare Oxford’s piece (‘Gone with the wind turbines’, 12 April) is both timely and sad. Those who applaud the use of these infernal machines are prone to eulogise their efficiency by saying (in the same annoying, dumbed-down way in which commentators always compare the size of something with the number