Chapter 13

1. Chapter 13 Population Growth and Urbanization

2. 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

3. Chapter Outline • Strategies for Action: Responding to Problems of Population Growth and Urbanization • Understanding Problems of Population Growth, Population Decline, and Urbanization

4. Demands of a Growing Population The collapse of Interstate 35W could be blamed on the government’s failure to provide adequate funding for repair and maintenance of bridges. But another factor is the increasing demands a growing population places on our nation’s infrastructure, especially in urban areas.

5. 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.

6. World Population Growth

7. 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

8. 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.

9. World’s 7 Largest Countries

10. Global Population Growth Is Driven by Developing Countries

11. 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.

12. Population Density • In 18 countries, the population density is more 1,000 people per square mile. • As a comparison: • Kern County: 69 people per sq mile • Los Angeles: 2183 people per sq mile • San Francisco: 15,502 people per sq mile

13. Fertility Rates by Region

14. Fertility Rate Average number of children born to each woman. Replacement level fertility The level required to maintain the population size.

15. 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.

16. Fertility The region of the world with the highest fertility rate is Africa, where women have an average of five children in their lifetime.

18. Current Population Trends • Future projections suggest that, although the world population continues to grow, it may never double again. • Fertility rates have dropped around the world • A child born today may live to see stabilization of the world’s population

19. Current Population Trends and Future Projections • According to the United Nations, the world’s population is growing at an annual rate of 1.14%, resulting in the addition of 76 million people per year. • Projections of future population growth suggest that world population will grow from 6.5 billion in 2005 to 9.1 billion in 2050.

20. Population Growth Rates andFertility Rates: 2005 and 2050

21. Question • There should be government intervention in determining the maximum number of children people can have. • Strongly agree • Agree somewhat • Unsure • Disagree somewhat • Strongly disagree

22. 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.

23. Population Trends • The total number of people on this planet is rising and is expected to continue to increase over the coming decades. • About 40% of the world’s population lives in countries in which couples have so few children that the countries’ populations are likely to decline over the coming years.

24. Urbanization • Transformation of a society from a rural to an urban one. • Urban population - Persons living in cities or towns of 2,500 or more residents. • Urbanized area - One or more places and the adjacent densely populated surrounding area that together have a minimum population of 50,000. • Mega-cities - Cities with 10 million residents or more.

25. Urban Skyline

26. Suburbanization • As more and more people moved to the suburbs, urban areas surrounding central cities, the United States underwent suburbanization. • As city residents left the city to live in the suburbs, cities experienced deconcentration, the redistribution of the population from cities to suburbs and surrounding areas.

27. Question • If you could live anywhere in the United States that you wanted to, would you prefer a city, suburban area, small town, or farm? • City • Suburban area • Small town • Farm

28. U.S. Metropolitan Growth and Urban Sprawl • A metropolitan area is a densely populated core area together with adjacent communities. • The largest city in each metropolitan area is designated the central city.

29. U.S. Metropolitan Growth and Urban Sprawl • The growth of metropolitan areas is often referred to as urban sprawl—the ever increasing outward growth of urban areas. • Urban sprawl results in the loss of green open spaces, the displacement and endangerment of wildlife, traffic congestion and noise, and pollution liabilities.

30. Los Angeles Traffic

31. Decline in Available Cropland

32. Structural-Functionalist Perspective • Focuses on how changes in one aspect of the social system affect other aspects of society. • The demographic transition theory of population describes how industrialization has affected population growth.

33. Structural-Functionalist Perspective • The development of urban areas is functional for societal development. • Urbanization is also dysfunctional, because it leads to increased rates of anomie as the bonds between individuals and social groups become weak.

34. Demographic Transition Theory Stage 1: Preindustrial Societies - little population growth, high birth rates offset by high death rates. Stage 2: Early Industrialization - significant population growth, birth rates are relatively high, death rates decline.

35. Demographic Transition Theory Stage 3: Advanced Industrialization and Urbanization - very little population growth occurs, birth rates and death rates are low. Stage 4: Postindustrialization - birth rates decline as more women are employed and raising children becomes more costly.

36. Demographic Transition Theory

37. Demographic Transition Theory Early Industrial Advanced Industrial Post Industrial Preindustrial Birth Death Pop

38. Demographic Transition Theory Early Industrial Advanced Industrial Post Industrial Preindustrial Birth Death Pop

39. Demographic Transition Theory Early Industrial Advanced Industrial Post Industrial Preindustrial Birth Death Pop

40. Demographic Transition Theory Early Industrial Advanced Industrial Post Industrial Preindustrial Birth Death Pop

41. Conflict Perspective • Emphasizes the role of power, wealth and profit motive in development of urban areas. • Capitalism contributes to migration of rural inhabitants to cities. • Individuals and groups with wealth and power influence decisions that affect urban populations.

42. Symbolic Interactionist Perspective • Focuses on how meanings, labels, and definitions affect population and environmental problems. • Women in pronatalistic societies learn that control of fertility is socially unacceptable. • Efforts to redefine cities in positive terms are reflected in campaigns sponsored by convention and visitors bureaus. • Distinctive cultures and lifestyles of cities influence their residents’ self-concepts, values and behaviors.

43. Classical Theoretical View • Urban living emphasizes individuality and detachment from interpersonal relationships. • Primary social bonds weaken in favor of superficial social bonds. • Social solidarity weakens leading to loneliness, depression, stress. 

44. Modern Theoretical View • Cities do not interfere with functional and positive interpersonal relationships. • Kinship and ethnicity help bind people together. • City is a patchwork quilt of urban villages that help individuals deal with the pressures of urban living.

45. Percentage of Population inUrban Areas, by Year

46. Problems Associated with Below-Replacement Fertility • In more than 1/3 of the world’s countries—including China (1.79), Japan (1.23), and all of Europe—fertility rates have fallen below the 2.1 children replacement level. • Low fertility rates lead to an increasing proportion of elderly members.

47. Problems Associated with Below-Replacement Fertility • Low fertility results in fewer workers to support the pension, social security, and health care systems for the elderly. • Below-replacement fertility rates raise concern about a country’s ability to maintain a productive economy, because there may not be enough future workers to replace current workers as they age and retire.

48. Environmental Problems and Resource Scarcity • Countries that suffer most from shortages of water, farmland, and food are countries with the highest population growth rates. • About 1/3 of the developing world’s population live in countries with severe water stress.

49. Environmental Problems and Resource Scarcity • The impact that each person makes on the environment, their environmental footprint, is determined by their culture’s patterns of consumption. • The environmental footprint of someone in a high-income country is about 6 times bigger than that of someone in a low-income country.

50. Urban Housing Problems • Slums are concentrated areas of poor housing and squalor in heavily populated urban areas. • In the U.S., slums that are occupied primarily by African Americans are known as ghettos, and those occupied primarily by Latinos are called barrios. • Nearly one in three city dwellers worldwide live in slums characterized by overcrowding, little employment, and poor water, sanitation, and health care services.