World population tops 7 billion; creates challenges

9 a.m. Tuesday, Nov. 29, until further notice

This topic features six sound bites and one voice wrap.

The world population reached 7 billion people about Oct. 31, according to United Nations' estimates. Wichita State University sociologist Charles Koeber says we're dependent on growth for our economy and to sustain our population, but with finite resources, there are some important questions about how much we can grow.

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