WASHINGTON, Dec. 8, 2011 /PRNewswire-USNewswire/ -- Since the recent U.S.

WASHINGTON, Oct. 27, 2011 /PRNewswire-USNewswire/ -- World population has surpassed 7 billion, and we are in the midst of history's most rapid population expansion.

WASHINGTON, Oct. 18, 2011 /PRNewswire-USNewswire/ -- The U.S.

WASHINGTON, Sept.

World Adding Another Billion People Every 12 Years Embargoed until 5 p.m.