As a Civil Engineer formally involved in the drainage industry, I can say without fear of contradiction (!) that the amount of water dropped on Cumbria in the last few days could never be adequately dealt with. The news reports of it being a 1 in 1000 year storm are presumptuous to say the least; the England and Wales Precipitation series, which measures rainfall and snow, goes back to 1766, and the Central England Temperature series, which covers the temperature from the south Midlands to Lancashire, is the longest-running record in the world, dating from 1659.
So we have records from, at best, 350 years ago. Needless to say, 350 years is not quite 1000.
I have heard that this particular disaster is due to Man Made Climate Change [MMCC] (formally known as Man Made Global Warming [MMGW]). The BBC told me so. So it must be true.
This event is gold dust to the MMCC fraternity. They can get all red faced and indignant about the evil that mankind is inflicting on the plant. Unfortunately for the scientifically challenged (ie. MMCC devotees) the reason for the floods is quite simple and doesn't involve CO2 at all.
It's due to nothing more than very heavy seasonal rainfall, exacerbated by an increased amount of impermeable surfaces. Where once, water would permeate into the ground, the water is now restricted from doing so by tarmac, paving stones, roofs, etc.
By creating more and more impermeable environments it is inevitable that people will increasingly be flooded out.