The scientific revolution in demography

Since 1960 a debate has taken place between demographers and natural scientists over projections of world population into the future and the methods appropriate for making projections. Underlying this debate is a disagreement over the factors which influence human population growth. To the usual factors of fertility and mortality the natural scientists emphasize the human population's ability to communicate and thereby to enlarge available resources. Also at issue are different philosophies concerning the manipulation of data. The debate between demographers and natural scientists bears many of the features of a scientific revolution as described by Thomas Kuhn. The new theory also meets the criterion of scientific growth contained in the correspondence principle. The theories used by demographers and natural scientists have political implications, since the demographers assume stability whereas the natural scientists observe instability.