Ajay Banga, president of the World Bank Group, says Nigeria’s population will increase by about 130 million in 2050.

Family size around the world is dropping. That choice by couples is triggering a population shift that's sending shock waves ...

BARCELONA, Spain (AP) — Climate change could push more than 200 million people to move within their own countries in the next three decades and create migration hotspots unless urgent action is taken ...

Wisconsin's population is estimated to shrink over the upcoming decades, according to a new projection from the state ...

UNDATED (WKRC/CNN Newsource) - A new scientific analysis suggested that adopting a diet beneficial for the planet could potentially feed the world by 2050. The report, compiled by a commission of ...

The World Bank on Friday said the pace of population growth is most staggering in Africa, estimating that Nigeria will swell ...