2. I. Introduction

3. Chart of water shortage in 1995 and the forecasts for 2025

4. II. Factors reducing the availabilities

5. 1°) Increase in the world population

6. 2°) Global warming

7. Storms

8. Reduction in the level of water in the Amazon river

9. 3°)Reserves overexploited, wasted and polluted

10. a) overexploited Reserves

11. b) Waste of water

12. Europe Europeans consume eight times more fresh water than their grandparents for their daily use

13. Australia An inhabitant who lives in Sidney consumes on average more than 1000 litres of drinking water per day

14. North of America An Northen American from 300 to 400 litres

15. Developing countries Whereas in certain developing countries, average consumption per person doesn't exceed a few litres.

16. c) Water pollution

18. III Water, a source of conflicts between nations

19. The Nile a water resource

20. The Tiger and Euphrates

21. Conflicts in the world 1. The bursting of the ex the USSR caused the creation of many small States. So rivers and lakes are divided between countries, causing conflicts. 2. In the Close East water is a source of discords (Israel and Palestine) 3. Turkey, Syria and Iraq, whose relations already are very degraded, dispute the resources of the two rivers the Tiger and Euphrates. 4. The basin of Indus, is divided between China, India and Pakistan. 5. For Egypt, Sudan and Ethiopia where there is drought, with the Nile they can make agriculture

22. BEN ISSA Abdel CHAABI Leïla LAKI Noussoura