We know floods kill, wreak havoc and cost billions. We also know they're coming. So why aren't we doing anything about them? Fiona Harvey reports
... When our modern infrastructure falters, social chaos and breakdown can soon follow – as was vividly demonstrated after Hurricane Katrina in New Orleans in 2005. An often-quoted estimate is that we are just four foodless days away from anarchy, and a few days of electricity blackout away from widespread looting.