As Britain counts the costs of the worst floods in 200 years, Charles Clover argues the signs of global warming are now impossible to ignore A still from the Robert Carlyle film, Flood Big Ben, the London Eye and Westminster Abbey awash. The submerged streets of London indistinguishable from the Thames. Admittedly, the above image, arresting as it is, is the stuff of cinematic trickery. But could it happen? One day, if we are not careful, it just might. Of course, nowhere in the country are flood defences built to a higher standard than in London, because of the value,...