![]() In 2014 there were 7.3 billion people living on the planet, of which the global urban population comprised 3.9 billion. This was the first time that the majority of the world's population lived in a city. ![]() In 2009, the number of people living in urban areas (3.42 billion) surpassed the number living in rural areas (3.41 billion), and since then the world has become more urban than rural. The change was driven by a combination of increased total population and increased percent of population living in urban areas. In 1950, around the world, 764 million people lived in urban areas. Led to the formation of human civilization and ultimately to modern urban planning, which along with other human activities such as exploitation of natural resources has led to a human impact on the environment. The development of earlier predecessors of modern urban areas during the urban revolution of the 4th millennium BCE In urbanism, the term "urban area" contrasts to rural areas such as villages and hamlets in urban sociology or urban anthropology it contrasts with natural environment. ![]() Urban areas originate through urbanization, and researchers categorize them as cities, towns, conurbations or suburbs. This is the core of a metropolitan statistical area in the United States, if it contains a population of more than 50,000. Greater Tokyo Area, Japan, the world's most populated urban area, with about 39 million inhabitants Greater São Paulo at night, as seen from the International Space Station Greater Melbourne at night, as seen from the International Space Station Warsaw metropolitan areaĪn urban area, built-up area or urban agglomeration is a human settlement with a high population-density and an infrastructure of built environment.
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