Chapter12 - Chapter 12 Population Growth and Urbanization...

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Unformatted text preview: Chapter 12 Population Growth and Urbanization Chapter Outline The Global Context: A World View of Population Growth and Urbanization Sociological Theories of Population Growth and Urbanization Social Problems Related to Population Growth and Urbanization Chapter Outline Strategies for Action: Responding to Problems of Population Growth and Urbanization Understanding Problems of Population Growth, Population Decline, and Urbanization Demands of a Growing Population The collapse of Interstate 35W could be blamed on the governments failure to provide adequate funding for repair and maintenance of bridges. But another factor is the increasing demands a growing population places on our nations infrastructure, especially in urban areas. World Population: History, Trends, and Projections For 99% of human history population growth was restricted by disease and food supplies. This continued until the mid-18th century, when the Industrial Revolution improved the standard of living for much of the world. Improvements included better food, cleaner drinking water, improved housing and sanitation, and medical advances. World Population Growth Doubling Time The time it takes for a population to double in size from any base year. Doubling times: Several thousand years for the world population to grow from 4 to 8 million A few thousand years to grow from 8 to 16 million Doubling Time About 1,000 years to grow from 16 to 32 million Less than 1,000 years to grow to 64 million. The recent doubling, from 3 billion in 1960 to 6 billion in 1999, took about 40 years. It will probably not double in size again. Worlds 7 Largest Countries Global Population Growth Is Driven by Developing Countries Population Density The number of people per unit of land area. The population density of India is 869 people per square mile, compared with 80 people per square mile in the United States. Population Density Area Population Density (People per Square Mile/Kilometer) World 19/50 More-developed countries 10/27 Less-developed countries 26/67 Least-developed countries 15/40 Fertility Rates by Region World 2.6 More-developed 1.7 Less-developed 2.7 Less-developed (excluding China) 3.1 Least-developed 4.6 Fertility Rate Average number of children born to each woman. Replacement level fertility The level required to maintain the population size. Population Momentum Continued population growth as a result of past high fertility rates that have resulted in a large number of young women who are currently entering their childbearing years. Despite the below-replacement fertility rates in more developed regions, population in these regions is expected to continue to grow until about 2030 and then to begin to decline. Fertility The region of the world with the highest fertility rate is Africa, where women have an average of five children in their lifetime. Question There should be government intervention...
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This note was uploaded on 07/01/2011 for the course SOC 214 taught by Professor Weisse during the Summer '11 term at Holyoke CC.

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Chapter12 - Chapter 12 Population Growth and Urbanization...

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