2004 Critical Review
نویسندگان
چکیده
During the next three decades, the world population is expected to increase from 6.1 billion to 8.1 billion, with nearly all of this growth concentrated in urban areas (from 2.9 billion to 4.9 billion). While only 30% of the world population lived in urban areas in 1950, this has increased to 47% by 2000 and is expected to reach 60% by 2030, of which 80% (3.9 million) will be living in less developed regions.
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تاریخ انتشار 2005