The provision of improved sanitation and safe drinking water could reduce diarrhoeal diseases by nearly 90 per cent
Today 2.5 billion people, including almost one billion children, live without even basic sanitation. Every 20 seconds, a child dies as a result of poor sanitation. That's 1.5 million preventable deaths each year.
768 million people do not use an improved source of drinking-water and 2.5 billion people do not use improved sanitation as of 2011
The UN suggests that each person needs 20-50 litres of water a day to ensure their basic needs for drinking, cooking and cleaning.
Since 1947 there have been 300 international water agreements against 37 conflicts between states over water.
There are 276 transboundary river basins in the world (64 transboundary river basins in Africa, 60 in Asia, 68 in Europe, 46 in North America and 38 in South America). 185 out of the 276 transboundary river basins, about two-thirds, are shared by two countries. 256 out of 276 are shared by 2, 3 or 4 countries (92,7%), and 20 out of 276 are shared by 5 or more countries (7,2%), the maximum being 18 countries sharing a same transboundary river basin (Danube).
Over 90 international water agreements were drawn up to help manage shared water basins on the African continent
There are numerous examples where transboundary waters have proved to be a source of cooperation rather than conflict. Nearly 450 agreements on international waters were signed between 1820 and 2007.