Because water provides the basis for life and survival, the scarcity, pollution and poor quality of water can generate strong political responses sub-nationally (sectors, locations and users) and between neighbouring countries. Water-scarce economies often show conflicting needs, as final consumers and agricultural producers compete for the same scarce resource. In Africa, agriculture gets the lion's share of water, for irrigation, with industry and domestic consumers sharing the remaining 15-20 per cent (UNESCO, 2009 p.99).