In demography, our most common population projection tool is called cohort component projection. This tool treats different age groups (cohorts) separately, applying rates representing the three ...

A new study finds Earth has already exceeded its sustainable population limit, raising concerns about food, climate, and ...

A new study sheds light on how prehistoric hunter-gatherer populations in Europe coped with climate changes over 12,000 years ago. Led by scientists from the University of Cologne, a team of 25 ...

Modern humans descended from not one, but at least two ancestral populations that drifted apart and later reconnected, long before modern humans spread across the globe. Using advanced analysis based ...

Coastal populations are expanding quickly around the world. The rise is evident in burgeoning waterfront cities and in the increasing damage from powerful storms and rising sea levels. Yet, reliable, ...