Today the agricultural populations migram for the great urban centers. The proper urbanization, the industrial and technological growth and the pollution that happen of these changes become providing with drinking waters a difficult task. Therefore, one becomes necessary a management and one serious politics of these scarce resources, with a radical control of the pollution. (MONTORO, APUD VIANNA, 2005, P. 250-251) We commemorate in 2003 the International Year of the Water Candy, but this is a quarrel that will go to extend for the next decades and generations, a time that the survival of the planet depends on the quality of the water. From there importance of this initiative, and if making of the celebrations of this year a permanent souvenir. Although it is an abundant element in the planet, only 2.53% of the total constitute waters candies, proper for the human consumption.
In 2015, almost 3 billion people – 40% of the projected world-wide population – must live in countries with difficulties to guarantee water enough to take care of agriculture, the industry and the domestic necessities of the population. One is about a problem with implications gigantic politics, economic and partner ambient, whom if he reflects, since already, in the poverty of great part of the world-wide population. One of the goals of the millenium established by United Nations, in 2000, the water foresaw the reduction for the half of the world-wide population without access potable candy and up to 2015. To reach these objectives, it would be necessary to take canalized water more than the 300 a thousand people per day and basic sanitation more than 500 a thousand. The goal will not be fulfilled, but in contrast, esteem that until this date sets of ten of millions of people they have died in result of illnesses related to the water, including average of 6 a thousand children per day.