People are having fewer children worldwide, but the trend is particularly marked in countries like China and less so in ...

Hundreds of decisions—how to build roads, where to send medicine, how to plan for natural disasters—depend on knowing where people live. Over the past few decades, population maps have become powerful ...

Almost every country in the world has seen fertility rates decline over the past few decades, but one region's birth rates are still so high that it is expected to provide more than half the global ...