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Peer reviewed Peer reviewed
Ahlburg, Dennis; Vaupel, James W. – Focus, 1993
Offers an alternative to the U.S. Bureau of the Consensus population projection for 2050. Discusses alternative mortality, fertility, and immigration assumptions and projection methods that use a baseline scenario of no further gains against mortality. Description of the U.S. population under alternative scenarios include changes in structure and…
Descriptors: Birth Rate, Census Figures, Demography, Environmental Education
Peer reviewed Peer reviewed
Hern, Warren M. – Focus, 1992
Presents a comparison of human population and pathologic models. Builds support for a hypothesis that the human population is a planetary cancer by establishing the following: (1) features of human populations; (2) characteristics of human populations and other biological communities; (3) models of pathologic processes; and (4) malignant…
Descriptors: Biology, Cancer, Demography, Diseases
Peer reviewed Peer reviewed
Keyfitz, Nathan – Focus, 1992
Presents a literary review of the positions held concerning a central population issue, development within the ecosphere. Explores concerns posed by contemporary academic economists and ecologists. Suggests that demographers see the issue as an important area of research needing the expertise of several disciplines. (143 references) (MCO)
Descriptors: Biology, Birth Rate, Demography, Development