In this overpopulated world of 1993 there were few frontiers left and even fewer men who knew their way around them.

The general plot revolves around the government's lies about an overpopulated world in order to gain control of the Earth's resources.

As in "Drowning Towers," class divisions, exacerbated by the struggle for survival in an overpopulated world, are central to the action.

Down there on the almost overpopulated world was a great activity of life and movement.

In a vastly overpopulated world, businesses have taken the place of governments and now hold all political power.

"It has every fact I might reasonably need or want to know--but it can't list every teen-age girl in the overpopulated world."

The story is set in a dystopian future in which an overpopulated world solves the problem by allocating people only one day per week.

Not more than three, though, except in extraordinary circumstances; nor was her opinion on that merely a concern for the overpopulated world.

Rather he looked for the best possible solutions in terms of economic and political feasibility in an overpopulated world.

This overpopulated world makes this impossible now, as nations resist immigration.