Population

Why do people settle where they do? Why do populations move from one place to another? In Human Systems, students will appreciate the role that the physical characteristics of Earth have played in determining where and how people live, and explore the notion that where and how we live has a huge impact on our planet.

Part 1: The People Paradox: Startling trends in population are discussed as the program looks at the aging populations of Japan, Europe, and Russia. But in parts of Africa and India, more than half of the still growing population is under 25. The conclusion: the world population is careening in two dramatically different directions.

Journey of a Man answers the question, "Where do we all come from?" Today, some six billion people are spread across the planet. But there was a time-not so long ago-when the human species numbered only a few thousand and their world was a single continent: Africa.