To extend this subject further ... It is not just about rain. We have had rain before, this is Britain after all. The problems seem to stem from the fact that we are still expecting Victorian drainage, pumping stations and general infrastructure to cope, despite having built tens of thousands of new houses feeding into and from those services.
Year after year Governments, of all persuasions, have always found something else to spend the money on. They will have to bite the bullet and, if necessary cut back elsewhere, to make sure our services can cope with the worst case scenario. Big money will need to be spent now to prevent further expense later.