‘So what?’ you might ask.
5000 children die everyday as a result
Half the world’s poorest people suffering serious health problems as a result.
Education is rendered virtually impossible
Economic development of the poorest countries is undermined
Basically, all the key areas of development are compromised meaning you can kiss goodbye to the Millennium Development Goals.
But don’t take my word for it: http://www.wateraid.org/uk/about_us/newsroom/6939.asp