Seth Dixon‘s insight:

The United Nations Department of Economic and Social Affairs produces easy-to-use population charts and graphs (including population pyramids).  This image (courtesy of Hans Rosling) shows the impending changes on Brazilian society based on changing fertility rates. How is this chart an example of population momentum and of the Demographic Transition Model? 

Tags: population, demographic transition model, declining population, models, Brazil.

See on esa.un.org