Study: World population to peak at 8.5-billion by 2050s

(Fargo, ND) -- A new study estimates the world's population could peak at eight-point-five billion some time in the 2050s.

Scientists with the Earth4All initiative for the Global Challenges Foundation conducted the study.

They based their estimate on what they call a "Giant Leap" in investment in economic development, education, and health.

The United Nations Population Division reported that the world's population reached eight-billion last November.