The process of relatively rapid urbanization has made significant impact on the environment and natural resources, to the ecological balance of land resources are fully exploited for urban construction, reducing the acreage green and water, causing flooding, along with the demand for water for daily life, services, manufacturing increased degradation of water resources; many enterprises and factories causing major environmental pollution ago located in the suburbs, are now caught in the middle of densely populated areas; expanding urban space leads to misappropriation of farmland, affecting the food security problem countries and on the lives of people suburban; Industrial production thrives generates large amounts of waste, including hazardous waste is increasing; motorized transport boom causing air pollution and severe noise; Urbanization increases the flow of migrants from rural to urban areas, causing considerable pressure on housing and sanitation, housing forming "ghetto" and the urban poor.
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