Blog Post Image: World population to keep growing this century, hit 11 billion by 2100

The top panel shows total world population projected to 2100. Dotted lines are the range or error using the older scenario method, while shaded regions are the uncertainties using statistical methods. The darker shading is the 80 percent confidence bars, and the lighter shading shows the 95 percent confidence bars. At the bottom are the population projections for each continent. Image credit: A. Raftery / UW (Click image to enlarge)