Download or read book Critical Masses written by George D. Moffett and published by Penguin Books. This book was released on 1995 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on conversations with families and individuals from Kenya to Guatemala, Mexico to Thailand, a diplomatic correspondent for The Christian Science Monitor unveils the human face of the population crisis, traces its history and evolution, and explains why the decisions made during the '90s will determine the fate of the earth as a home for human beings.