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Brown, Lester R.; Jacobson, Jodi L. – 1987
Aside from the growth of world population itself, urbanization is the dominant demographic trend of the late twentieth century. The number of people living in cities increased from six hundred million in 1950 to over two billion in 1986. If this growth continues unabated, more than half of humanity will reside in urban areas shortly after the turn…
Descriptors: Demography, Depleted Resources, Developing Nations, Ecological Factors