Studying changing populations is a key component of AP, A level, and IB DP Geography. The following topics are supported on this page:
Population Growth, the Demographic Transition Model, Age-Sex Structures, Quality of Life Indicators, Migration
For many decades, it was thought that the biggest crisis facing humanity was a rapidly growing population. Since then, demographers have come to realize that although a growing population creates challenges, world population growth is actually slowing down, to the point where we can begin to foresee a time when population growth will level off, and may in fact decline. Furthermore, it's resource consumption, particularly by the wealthiest 1 billion, that is driving the problems we face.
Malthus, population and the resource base (8:43)
7 Billion: Filling it up (2:33)
Nations United: Urgent Solutions for Urgent Times (34min)
Charting Culture (Nature: 5:36)