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Statistical data about Water
Contents:1) Present system of water utilization (Its Status and Quality):2) Water-Cycle 3) Corrective measures to restore proper water-cycles: 4) Water Content of Human-body 5) Recommendations of World Water Congress 6) Water Management in India:7) Global Approach 8) Guiding Principle
1) Present system of water utilization - A Threat to Environment:When Unesco celebrated, for the first time, the decade 1965-74 as decade of water science, it led to detailed scientific & technical studies of water-resources at global level. A lot of data was collected. It changed our view towards water and helped develop a scientific and balanced world approach towards the problems of water-resources and its long-term solutions. i) The solid skin of planet Earth is only 65 km thick. 70% of its
surface is covered with water. Statistically, 97.5% of world water is saline (stored in oceans and seas) and is unfit for human consumption. Out of the balance 2.5% water, 1.7% is in form of polar-ice. The rest 0.8% only is available in form of lakes, rivers, glaciers, ponds, underground sources, in bodies of plants, vegetation and animal world. It is estimated that the present world population of over 6 billion utilizes around 54% of total useable water, which would increase to 70% by 2025. Out of total consumption of water, 69% is used by agriculture, 23% by industry and 8%by households. In different regions, the per capita consumption of water differs widely.
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