Create a sponge city to let the water alive

As the world increasingly consumption and pollution of freshwater resources, when rivers, lakes and underground water resources do not apply to use, how human beings should be from the Department? Increased rainfall variability can be said that one of the problems often occur in the current climate change. When rainfall variability increases, the conventional so-called normal rainy season, rains season summer season and so will no longer evident. It would be more prone to drought and a long burst it to the rain. In the case of this rain gradually towards highly uneven distribution. The main source of human drinking water rivers and streams of living water will and serious problem of uneven distribution of water resources often. In this context, how can we make the best use of our wisdom to collect the water of nature. Rather than just passively in the face of climate disasters. Collect and reuse rainwater can be said that very good direction. Especially in big cities and drying area which is a more important point. Since modern times, with the process of urbanization, houses and streets in many areas are surrounded by asphalt and cement. Making the original land surface infiltration progressive loss of function, the impact of heavy rain comes, a substantial increase in surface runoff. The city rain caused a serious waste of rain, and even increase as sudden rainstorm flooded flooding is possible. So many countries have embarked on the construction of rainwater recycling facilities as a way to try to reduce urban flooding. Rainwater reuse system is the most common settings rainwater collected in building construction and processing equipment. This type of equipment often does not require spending a high cost, but it can effectively collect rainwater for domestic water source for another. Such storing rainwater utilization facilities in addition to the increased use of features original buildings, and as sources of new water sources; the purpose of the city can also assist in flood control in heavy rain when reached whereby, in addition to links with the irrigation system and flushing the system ( Collect and use treated rainwater simple as toilet water or wash your hands in water; even as home water pot with water and add air conditioning, etc.), can significantly increase the amount of water replacement, thereby enabling recycling of water. In recent years, many water-scholars are hoping future public and private buildings in the world have this facility can be phased system.