<ul><li>This problem that us one presents at present is a topic that every day occupies more the attention of scientists, technical personnel, politicians and in general, of many of the inhabitants of the planet. </li></ul><ul><li>Only very few water is used for the consumption of the man, since: 90 % is a water of sea and has salt, 2 % is an ice and is in the poles, and only 1 % of the whole water of the planet is sweet, being in rivers, lakes and underground mantles. </li></ul>
The shortage of the water: world problem <ul><li>Whereas in many places the clean and fresh water gives itself made, in others it is a scanty resource due to the water lack or the pollution of his sources. Approximately 1.100 millions of persons, that is to say, 18 per cent of the world population, do not have access to sure sources of drinkable water, and more than 2.400 million persons lack suitable reparation </li></ul>
Effects of the problem <ul><li>The quality of the water will deteriorate with the elevation of his temperature and the increase of the indexes of pollution. Already in the last years an important decrease has been demonstrated in his quality. And the most affected continue being the poor, since 50 % of the population of the underdeveloped countries is exposed to the danger that the water sources represent contaminated. </li></ul><ul><li>Other very important problems that appear are those of the quality and the good administration of the water. In the world there are more than 2,2 million persons who die every year due to diseases caused by the drinkable contaminated water and a deficient reparation. A great proportion of these deaths owes to the diseases caused by the water. </li></ul>
The affected more: the children <ul><li>Every day thousands of children spends great part of his time in the waters contaminated with the rivers that cross the poorest countries of the planet. </li></ul><ul><li>Others, on the other hand, plunge to approach the cruises that, loaded with tourists, navigate these rivers full of history and misery. </li></ul><ul><li>If the present appears to small these shaded, the future begins to show even more discouraging. The Earth faces in this beginning of the century twenty-one a serious crisis of the water. </li></ul>
To use well the water it is necessary to follow these advices <ul><li>It closes the keys while you soap yourself, you carve yourself in the bath, shave or brush yourself the teeth. </li></ul><ul><li>Do not wash the hassock, floors or the car to " jet of hose ", it uses only the necessary one in basins. </li></ul><ul><li>It brings any escape that you observe in the street, monitors the mechanisms of warehouse of sanitary, tinacos and cisterns, repairing any escape. </li></ul><ul><li>It brings any escape that you observe in the street, monitors the mechanisms of warehouse of sanitary, tinacos and cisterns, repairing any escape. </li></ul>
<ul><li>The strictly necessary water uses only in the bath, in the wash of frets and in the wash of clothes. </li></ul><ul><li>Do not water the garden during the hours of major heat, the water evaporates. </li></ul><ul><li>It monitors your children, in order that in his games they do not bath to water jet or to cubetazos. </li></ul><ul><li>It uses WC's cisterns with device of controlled unload or of low volume. A way of reducing the consumption of a conventional cistern consists of introducing in his interior a bottle of one or two liters water flood. </li></ul><ul><li>Do not forget to explain these advices to the smallest of the house </li></ul>
Some recommendations for the prevention of the pollution: <ul><li>To reduce the unnecessary use and the waste of material and energetic resources. </li></ul><ul><li>To make products that could be recycled or re-used, that have useful big life and that are easy to repair. </li></ul><ul><li>To re-design technologies to avoid to produce or to use pollutant substances. </li></ul><ul><li>To do exhaustive studies of soils to locate the sanitary warehouses, to prevent the residues of the garbage from reaching the groundwater levels and contaminating the underground water. </li></ul>
<ul><li>To separate the solid tailing both in the industry and in the home and to avoid to throw to the water pollutants like oils, solvents, paintings and organic matter. </li></ul><ul><li>To have in a special way of certain tailing as the batteries and electrical batteries, preventing them from spilling in the soil or in the water. </li></ul><ul><li>To change the energetic dependence of the fossil fuels and the nuclear power, which they are not renewable and potentially pollutant resources, to renewable and everlasting sources of energy as the Sun, the wind, the water, renewable trees and geothermal energy </li></ul>
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