Population, Urbanization, and the Environment

Read this chapter for a review of population, urbanization, and the environment. As you read each section, consider the following topics:

  • What are your initial reactions to 12-year-old Todd Domboski? What might your reaction be if this was your son or brother?
  • Focus on demographic measures such as fertility and mortality rates. Then, familiarize yourself with current population trends and patterns.
  • Take note of the process of urbanization in the United States. Also focus on the function of suburbs, exurbs, and concentric zones and urbanization from various sociological perspectives.
  • Take note of the bold terms in this section. On a separate piece of paper, be sure to make a list of challenges presented by pollution, garbage, e-waste, and toxic hazards. Also, focus on real-world instances of environmental racism.

Key Terms

sustainable development
development that occurs without depleting or damaging the natural environment

asylum-seekers
those whose claim to refugee status have not been validated

cancer cluster
a geographic area with high levels of cancer within its population

carrying capacity
the amount of people that can live in a given area considering the amount of available resources

climate change
long-term shifts in temperature and climate due to human activity

concentric zone model
a model of human ecology that views cities as a series of circular rings or zones

cornucopian theory
a theory that asserts human ingenuity will rise to the challenge of providing adequate resources for a growing population

demographic transition theory
a theory that describes four stages of population growth, following patterns that connect birth and death rates with stages of industrial development

demography
the study of population

e-waste
the disposal of broken, obsolete, and worn-out electronics

environmental racism
the burdening of economically and socially disadvantaged communities with a disproportionate share of environmental hazards

environmental sociology
the sociological subfield that addresses the relationship between humans and the environment

exurbs
communities that arise farther out than the suburbs and are typically populated by residents of high socioeconomic status

fertility rate
a measure noting the actual number of children born

fracking
hydraulic fracturing, a method used to recover gas and oil from shale by drilling down into the earth and directing a high-pressure mixture of water, sand, and proprietary chemicals into the rock

gentrification
the entry of upper- and middle-class residents to city areas or communities that have been historically less affluent

human ecology
a functional perspective that looks at the relationship between people and their built and natural environment

internally displaced person
someone who fled his or her home while remaining inside the country's borders

Malthusian theory
a theory asserting that population is controlled through positive checks (war, famine, disease) and preventive checks (measures to reduce fertility)

megalopolis
a large urban corridor that encompasses several cities and their surrounding suburbs and exurbs

metropolis
the area that includes a city and its suburbs and exurbs

mortality rate
a measure of the number of people in a population who die

NIMBY
"Not In My Back Yard," the tendency of people to protest poor environmental practices when those practices will affect them directly

pollution
the introduction of contaminants into an environment at levels that are damaging

population composition
a snapshot of the demographic profile of a population based on fertility, mortality, and migration rates

population pyramid
a graphic representation that depicts population distribution according to age and sex

refugee
an individual who has been forced to leave their country in order to escape war, persecution, or natural disaster

sex ratio
the ratio of men to women in a given population

suburbs
the communities surrounding cities, typically close enough for a daily commute

urban sociology
the subfield of sociology that focuses on the study of urbanization

urbanization
the study of the social, political, and economic relationships of cities

white flight
the migration of economically secure white people from racially mixed urban areas toward the suburbs

zero population growth
a theoretical goal in which the number of people entering a population through birth or immigration is equal to the number of people leaving it via death or emigration