Africa is going to be the key to unlock the various water (and agricultural) challenges that we will all face as our population and urbanisation increase.
Shown in Figure 12.4 is the rainfall data for Africa, and for most of the countries suffering water stress Africa is the nearest neighbour with surpluses. The equatorial prominence in the mid-to-south of the continent, coupled with numerous sources of large rivers and lakes, make the African continent a unique water deposit for Asia and the Arabian Gulf.
Figure 12.4 Rainfall in Africa
Source: Based on data from Gleick, The World’s Water 1998–99, Table 1
How is water consumed? ...