According to Population Action International, based upon the UN medium population projections of 1998, more than 2.8 billion people in 48 countries will face water stress or water scarcity conditions by 2025. An area is experiencing water stress when annual water supplies drop below 1700 m3 per person. Water scarcity means that the annual water supply is below 1000 m3 per person. This graphic shows which African nations are expected to be experiencing water stress, and which are expected to be facing water scarcity, by the year 2025. It also includes a graphic which shows that as the world's population continues to grow, a higher proportion of the population will be affected by water stress and water scarcity.
From collection: Vital Water Graphics
Philippe Rekacewicz, Delphine Digout, UNEP/GRID-Arendal