Here's an excerpt:
"...European nations will soon face the reality of fast-falling population levels -- levels that will threaten social stability, economic security, and a host of other social goods. Economic security depends upon a stable or growing population. But economic security is not the only issue at stake -- not by a long shot. Many observers believe that growing Muslim birth rates and immigration rates, coupled with a decline in the Christian population, will mean an Islamic future for Europe.
A number of very capable scholars have documented this reality. What Noah Pollak of Azure adds to the picture is serious attention to the question of why people decide not to have children."
Hit the link for more.