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[[Global atheism]] is facing significant challenges in terms of its aging populations and it is expected to shrink in terms of its market share of the world's population (see: [[Desecularization]]).

[[Global atheism]] is facing significant challenges in terms of its aging populations and it is expected to shrink in terms of its market share of the world's population (see: [[Desecularization]]).

The cause of many irreligious countries having aging populations is their sub-replacement fertility rates.  

The cause of many irreligious countries having aging populations is their sub-replacement fertility rates.  

The ''Washington Post'' wrote about the United States and fertility rates for various religious groups:

The ''Washington Post'' wrote about the United States and fertility rates for various religious groups:

{{Cquote|According to Pew's data, the average Mormon can expect to make 3.4 babies in his or her lifetime. Jews, Catholics, and most flavors of Protestantism have fertility rates ranging from 2 to 2.5. At the low end of the baby-making spectrum you've got atheists, with 1.6 kids, and [[agnosticism|agnostics]], who average only 1.3.<ref>[https://www.washingtonpost.com/news/wonk/wp/2015/05/12/charted-the-religions-that-make-the-most-babies/ Charted: The religions that make the most babies], Washington Post</ref>}}

{{Cquote|According to Pew's data, the average Mormon can expect to make 3.4 babies in his or her lifetime. Jews, Catholics, and most flavors of Protestantism have fertility rates ranging from 2 to 2.5. At the low end of the baby-making spectrum you've got atheists, with 1.6 kids, and [[agnosticism|agnostics]], who average only 1.3.<ref>[https://www.washingtonpost.com/news/wonk/wp/2015/05/12/charted-the-religions-that-make-the-most-babies/ Charted: The religions that make the most babies], Washington Post</ref>}}

== China's aging population ==

== China's aging population ==