ABOUT THIS SLIDESHOW
This presentation gives a quick overview of 20 thousand years of human population history. From the beginnings of agriculture all the way to the industrial revolution, the number of people increased slowly. Then the population started to grow rapidly because more children survived to become parents. Today, most women have fewer children and therefore the UN experts predict the fast growth will slow down in the second half of this century, somewhere around 11 billion people.
DATA SOURCES
Biraben 1980; McEvedy & Jones 1978; UN World Pop. Prosp. 2012; combined by Gapminder.