Muslims are the world’s second-largest religious group and the fastest-growing major religion. They make up the vast majority of the population in the Middle East-North Africa region. In all other ...

This discussion reviews the state of the world's population, its changes, and its implications for world health in the 21 st century. My argument is that much of the future is already here in terms of ...

While Christians remained the world’s largest religious group at the end of the decade that ended in 2020, Christianity’s growth did not keep up with global population increase. But Islam — the ...

Muslims are the fastest-growing faith group, followed by the religiously unaffiliated, according to a new Pew Research Center study measuring the evolution of the global religious population between ...

Families in the U.S. and around the world are having fewer children as people make profoundly different decisions about their lives. NPR's series Population Shift: How Smaller Families Are Changing ...