People paradox -- China revs up.

Music, Michael Bacon ; narrator, Oliver Platt. People paradox: camera, Ned Johnston, Steve McCarthy, Bob Poole ; editor, Sarah Holt. China revs up: editor, David Carnochan ; director of photography, Gary Henoch.

In Japan, Europe and Russia, birth rates are shrinking and the population is aging. In parts of India and Africa, more than half of the still growing population is under 25. The world population is now careening in two dramatically different directions.

DVD, region 1; Dolby Digital. DVD-ROM segments requires DVD-ROM player and PDF reader.

Closed-captioned; audio description for people with visual disabilities.