chapter 13
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Chapter 13. 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. - PowerPoint PPT PresentationTRANSCRIPT
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Chapter 13
Population Growth and Urbanization
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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
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Chapter Outline Strategies for Action: Responding to
Problems of Population Growth and Urbanization
Understanding Problems of Population Growth, Population Decline, and Urbanization
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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.
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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.
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World Population Growth
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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
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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.
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World’s 7 Largest Countries
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Global Population Growth Is Driven by Developing Countries
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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.
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Population DensityIn 18 countries, the population density
is more 1,000 people per square mile.
As a comparison:Kern County: 69 people per sq mileLos Angeles: 2183 people per sq mileSan Francisco: 15,502 people per sq
mile
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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
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Fertility Rate
Average number of children born to each woman.
Replacement level fertility The level required to maintain the population
size.
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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.
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Fertility
The region of the world with the highest fertility rate is Africa, where women have an average of five children in their lifetime.
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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
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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.
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Population Growth Rates andFertility Rates: 2005 and 2050
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Question There should be government
intervention in determining the maximum number of children people can have.
A. Strongly agreeB. Agree somewhatC. UnsureD. Disagree somewhatE. Strongly disagree
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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.
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Population Trends1. The total number of people on this
planet is rising and is expected to continue to increase over the coming decades.
2. 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.
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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.
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Urban Skyline
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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.
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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?
A. CityB. Suburban areaC. Small townD. Farm
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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.
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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.
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Los Angeles Traffic
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Decline in Available Cropland
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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.
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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.
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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.
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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.
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Demographic Transition Theory
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PreindustrialPreindustrialEarly
IndustrialAdvancedIndustrial
PostIndustrial
Birth
Death
Pop
Demographic Transition TheoryDemographic Transition Theory
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PreindustrialEarlyEarly
IndustrialIndustrialAdvancedIndustrial
PostIndustrial
Birth
Death
Pop
Demographic Transition TheoryDemographic Transition Theory
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PreindustrialEarly
IndustrialAdvancedAdvancedIndustrialIndustrial
PostIndustrial
Birth
Death
Pop
Demographic Transition TheoryDemographic Transition Theory
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PreindustrialEarly
IndustrialAdvancedIndustrial
PostPostIndustrialIndustrial
Birth
Death
Pop
Demographic Transition TheoryDemographic Transition Theory
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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.
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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.
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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.
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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.
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Percentage of Population inUrban Areas, by Year
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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.
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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.
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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.
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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.
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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.
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Global Insecurity Rapid population growth is a contributing
factor to global insecurity, including civil unrest, war, and terrorism.
Developing countries are characterized by a
youth bulge—a high proportion of 15- to 29-year-olds relative to the adult population.
The combination of a youth bulge with other characteristics of rapidly growing populations, such as resource scarcity, high unemployment rates, poverty, and rapid urbanization, sets the stage for political unrest.
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Poor Maternal, Infant, and Child Health In developing countries one in four children is
born unwanted, increasing the risk of neglect and abuse.
The more children a woman has, the fewer the parental resources (parental income and time and maternal nutrition) and social resources (health care and education) available to each child.
The adverse health effects of high fertility on women and children are, in themselves, compelling reasons for providing women with family planning services.
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Transportation and Traffic Problems
A study of 85 U.S. urban areas found that in 2003 traffic congestion caused 3.7 billion hours of traffic delay and wasted 2.3 billion gallons of fuel.
The average annual delay per traveler increased from 16 hours in 1982 to 40 hours in 1993 and 47 hours in 2003.
Many public roads in urban areas are afflicted with what some call autosclerosis clogged vehicular arteries that slow rush hour traffic to a crawl or a stop, even when there are no accidents or construction crews ahead.
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Governments’ Views on Population Growth Rate
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Reasons for not Walking More
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Proposals to Create more Walkable Communities
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Regionalism Collaboration among central cities and
suburbs that encourages local governments to share common responsibilities for common problems.
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Strategies for Reducing Urban Growth in Developing Countries1. Promoting agricultural development in rural
areas.
2. Providing incentives to industries and businesses to relocate from urban to rural areas.
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Strategies for Reducing Urban Growth in Developing Countries3. Providing incentives to encourage new
businesses in rural areas.
4. Developing the infrastructure of rural areas, including transportation systems, clean water supplies, sanitary waste disposal systems, and social services.
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Annual Expenditures on Luxury Items
Product Annual Expenditure
Makeup $18 billion
Pet food in Europe and the United States
$17 billion
Perfume $15 billion
Ocean cruises $14 billion
Ice cream in Europe $11 billion
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Funding Needed For Basic Needs
Social or Economic GoalAdditional Annual
Investment Needed to Achieve Goal
Reproductive health care for all women
$12 billion
Elimination of hunger and malnutrition
$19 billion
Universal literacy $5 billion
Clean drinking water for all $10 billion
Immunizing every child $1.3 billion
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Chapter 15- Urbanization Do Activity Sheet 15-1 & 15-2 You can do Text “Activities” if you wish? Do:-Figure 15-1 -Figure 15-3-Figure 15-4 -Figure 15-5-Figure 15-7 -Figure 15-9-Figure 15-10 -Figure 15-11-Figure 15-15 -Figure 15-18-Figure 15-19 -Figure 15-20-Figure 15-21 -Figure 15-22