CGS NS 202 Lecture Notes - Lecture 4: Demographic Transition, Total Fertility Rate
7 Feb 2019
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No: people can find or manufacture additional resources to keep pace with population growth. Some people fear falling populations: population growth is correlated with poverty, not wealth, policymakers believe growth increases economic, political, and military strength. 67% of european nations think their birth rates are too low. In non-european nations, 49% feel their birth rates are too high. Usually, young would be taking care of the old. Population growth affects the environment: the ipat model: i = p x a x t. Our total impact (i) on the environment results from the interaction of population (p), affluence (a), and technology (t). Population: individuals need space and resources and produce waste. Technology: allows increased exploitation of resources: but can also reduce our impact (e. g. , decrease emissions) Further model refinements include: sensitivity of the environment to impacts, education, laws, ethics. Demography: humans can raise the environment"s carrying capacity through technology.
