The objective of this paper is to understand why the Western civilization had exploited nature so much that its own quality of life--even its survival--was now at stake. The answer is: the Judeo-Christian tradition.A central belief of the Judeo-Christian theology has been dualism—that man is separate from nature—and anthropocentrism: that man is the master and the center of this universe, with a license to exploit nature.Christianity prospered in the great cities of the time which were--like today--the centers of economic and cultural attraction. Therefore, a concentration of population in urban areas must have exerted a deep influence over the entire character of Christianity.Victory of Christianity over paganism was the greatest psychic r...