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Related Flashcards
Cards In This Set
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Demography
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The study of statistics and trends relating to population, such as birth and death rates, income, disease, age, and education.
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Zero population growth
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A rate at which fertility and mortality balance each other out so that population neither increases nor decreases.
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Demographic transition
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A model used to explain how population numbers change in concert with changes in economic and social patterns, and improved health care.
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Green revolution
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The post-war growth in global food production resulting from changes in agricultural science, including the use of chemicals, improved water supply, and the development of high-yield crops.
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Food security
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A condition in which people have access to sufficient, safe and nutritious food.
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Malnutrition
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A mismatch between supply and demand in nutrition, which may mean having too little food or consuming too much.
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Megacity
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A city with a population of at least ten million people. The list has been growing, and is today topped by Tokyo, Delhi, Shanghai, Mexico City, and Sao Paulo.
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Natural resources
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Materials or commodities found naturally on earth that have value to humans and other living organisms, including land, food, water, plants, animals, soil, minerals, fuels, and timber.
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Global city
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A city whose size and political/economic reach is such that it has come to exert an influence beyond the state in which it is located.
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Common pool resources
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Resources (such as the atmosphere and the oceans) whose size or extent makes it difficult or impossible to prevent individuals from making use of them.
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Tragedy of the commons
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An economic theory which argues that individual selfinterest encourages the over-use of common pool resources, personal gain prevailing over the well-being of society.
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Fossil fuels
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Fuels formed from the decay of organic matter over millions of years, including coal, oil, and natural gas.
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Renewable energy
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Energy generated by sources that are potentially or actually infinite in supply, such as solar, wind, and hydro power.
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