| Popis: |
At a time when the world's cities are bursting with massive increases in population, the Atlas of Urban Expansion is a comprehensive guide to the past and future characteristics of metropolitan growth. In 2010 more than half of the world's total population lived in cities, and this share is expected to increase to 70 percent or more by 2050. The world's urban population is expected to increase from 3.5 billion in 2010 to 6.2 billion in 2050, and almost all of this growth is expected to take place in less-developed countries. Cities in developed countries will add only 160 million people to their populations during this period, while Cities in developing countries will need to absorb 15 times that number, or close to 2.6 billion people, thereby doubling their total urban population of 2.6 billion in 2010. Given the expected decline in urban densities, these cities are likely to more than triple their developed land areas by 2050. |
