Buddhists are the only group in this report whose number declined worldwide between 2010 and 2020. This was due both to religious disaffiliation among Buddhists in East Asia and to a relatively low ...

On a global level, religious groups expand and shrink due to a mix of factors. Demographic factors, such as age structure, fertility and mortality (or life expectancy), tell us whether people in ...

Fertility rates around the world are dropping quicker than expected, putting the world on track to see a population decline before the end of the century, according to a report from the United Nations ...