Miller Chapter 22 notes

Miller Chapter 22 - Chapter 22 Cities and Sustainability What are the major population trends in urban area Urbanization is the creation and growth

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Chapter 22 Cities and Sustainability What are the major population trends in urban area? Urbanization : is the creation and growth of urban and suburban areas Urban growth : is the rate of increase of urban population Four major trends in urban population o The proportion of the global population living in urban area is increasing 700,000 people in 1900, 6 million in 2009; urban area increases 2% in 1850, increases 50% in 2009; 88% of this growth will occur in already overcrowded and economically stressed cities in less-developed countries o The number and size of urban areas are mushrooming Every week 1 million people are added into urban areas By 2025, china will have 60 cities hosts 1.5 to 5 million people US has 9 cities with over 1 million people Currently, there are 18 megacities, 10 million or more people; Japan has the most population 32 million in Tokyo o Urban growth is much slower in more-developed countries than in less-developed countries 75% urbanization in more –developed countries now, will be 81% by 2030 o Poverty is becoming increasingly urbanized, mostly in less-developed Urbanization in the United States o 1800 to 2008, people living in the urban area increased from 5% to 79% o Population shift has four phases: People migrated from rural areas to large central cities. ¾ Americans live in the cities, half urban areas with 1 million or more people Many people migrated from large central cities to smaller cities and suburbs Many people migrated from the North and East to the South and West. People fled both urban and suburbs to developed area of suburbs. Urban sprawl gobbles up the countryside o Urban sprawl : the growth of low-density development on the edges of cities and towns o Five major factors promoted urban sprawl Ample land available Low-cost gasoline allow to drive
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This note was uploaded on 02/11/2012 for the course ENV S 1 taught by Professor Freudenburg during the Fall '07 term at UCSB.

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Miller Chapter 22 - Chapter 22 Cities and Sustainability What are the major population trends in urban area Urbanization is the creation and growth

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