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Chapter 15 Population, Urbanization, and Environment
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Demography The study of human population –Fertility –Mortality –Migration
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Fertility The incidence of childbearing in a society’s population –Crude birth rate – the number of live births in a given year for every thousand people in a population
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Mortality The incidence of death in a society’s population –Crude death rate – the number of deaths in a given year for every thousand people in a population –Infant mortality rate – number of deaths among infants under 1 year of age for every thousand live births in a given year –Life expectancy – the average life span of a society’s population
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Migration The movement of people into and out of a specified territory Immigration – movement into a territory Emigration – movement out of a territory Net-migration – the difference between the immigration and emigration rate
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Population Population growth – over 6 billion people on the planet Zero population growth – level of reproduction that maintains population at a steady rate
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Malthusian Theory Rapid population growth leads to social chaos Population increases exponentially (1,2,4,8,16, etc) while food increases arithmetically (1,2,3,4), leading to catastrophic starvation Why not? –Industrial revolution –Agricultural technology
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Demographic Transition Population patterns reflect a society’s level of technological development –Stage 1 – pre-industrial – high birth, high death –Stage 2 – onset of industrial – high birth, lower death –Stage 3 – industrial – declining birth, low death –Stage 4 – postindustrial – low birth, steady death
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Urbanization The concentration of humanity into cities –Gemeinschaft – type of social organization by which people are bound closely together by kinship and tradition –Gesellschaft – type of social organization by which people have weak social ties and considerable self-interest
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Ecology The study of the interaction of living organisms and the natural environment –Natural environment – consists of the earth’s surface and atmosphere, including various living organisms and their natural environment –Ecosystem – the system composed of the interaction of all living organisms and their natural environment
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Environment Deficit and Concerns Profound and negative harm to the natural environment, caused by humanity’s focus on short-term material affluence Concerns –Water supply, water pollution, air pollution, rainforests, etc.
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Environmental Racism Pattern by which environmental hazards are greatest for poor people, especially minorities
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Ecologically Sustainable Culture A way of life that meets the needs of the present generation without threatening the environmental legacy of future generations –Control population growth –Conserve finite resources –Reduce waste
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