Two thirds of people will live in water stressed conditions by the year 2025, where water consumption is more than 10% of renewable supply.
By 2025, 70% of agricultural land will need to be irrigated. Forecasts suggest there will be enough water to meet this demand.
Per capita water availability in Africa is forecast to halve in the next 25 years; in Asia average availability will fall by more than a third.
Fifteen per cent of all nations receive more than 50% of their water from upstream neighbours.
By 2025 Afghanistan, Egypt, Saudi Arabia, Pakistan, Israel, Jordan, Iran, Iraq, Kuwait, Syria, Tunisia, United Arab Emirates, Yemen, Singapore, South Africa, Oman, Libya, parts of India and China countrieswill face 'absolute water scarcity'.