Water Cycle


Cities and urban systems play a decisive role in the natural water cycle, both in terms of the demand for drinking water and the discharge of waste water. The concentration of the population and a large number of human activities in a limited territorial area generate a demand that, in most cases, exceeds the resources available in the closest ecosystems, so it is necessary to go to find them far away and to build infrastructures and transport networks that allow accumulating sufficient volumes to guarantee the supply and to carry the water to all the centers of consumption. Saving and rational use of this resource are the key to move us towards a new water culture.