Changes

== Sub-replacement fertility ==

== Sub-replacement fertility ==

Replacement fertility is the level of fertility that is required to sustain a population without any external additions,  Replacement fertility is 2.1 children born per woman in a population.  

Replacement fertility is the level of fertility that is required to sustain a population without any external inputs. Replacement fertility is 2.1 children born per woman in a population.  

=== Film documentary Demographic Winter: The decline of the human family ===

=== Film documentary Demographic Winter: The decline of the human family ===

A review of the film documentary ''Demographic Winter'' declares:

A review of the film documentary ''Demographic Winter'' declares:

One of the most ominous events of modern history is quietly unfolding. Social scientists and economists agree -- we are headed toward a demographic winter which threatens to have catastrophic social and economic consequences. The effects will be severe and long lasting and are already becoming manifest in much of Europe. This ground breaking film draws upon experts from many different disciplines and reveals in chilling soberness the dangers facing society and the world's economies...<ref>[https://www.amazon.com/Demographic-Winter-decline-human-family/dp/B001CGD1P2 Demographic Winter: The decline of the human family - Amazon]</ref>

{{Cquote|One of the most ominous events of modern history is quietly unfolding. Social scientists and economists agree -- we are headed toward a demographic winter which threatens to have catastrophic social and economic consequences. The effects will be severe and long lasting and are already becoming manifest in much of Europe. This ground breaking film draws upon experts from many different disciplines and reveals in chilling soberness the dangers facing society and the world's economies...<ref>[https://www.amazon.com/Demographic-Winter-decline-human-family/dp/B001CGD1P2 Demographic Winter: The decline of the human family - Amazon]</ref>}}

=== Eric Kaufmann on sub-replacement fertility ===

=== Eric Kaufmann on sub-replacement fertility ===