age distribution (demography)

Provides a demographic point of view on the issue of immigration in the United States, contending that lowering the average age by allowing immigrants to work in America will help the country economically and culturally.

Presents opposing views on issues related to population growth. Examines whether there is a population problem and debates the impact of population growth on the environment, world hunger, and humanity's survival. Considers the effects of immigration on America's population as well as the legitimacy of population control policies.

Contains a collection of essays that examine the global consequences of continued population growth and considers the various options for dealing with its impact on the environment and natural resources.