Bitterroot Bugle post categories

Global Skywatch

population pyramid


This is snapshot of a really clever animation comprised of population demographics from 1950 to 2050.

The top bar is a graphical representation of the population 95 years old or older. The next band is 90 through 94 and on down band-by-band to newborns.

The snapshot to the right is from the early years in the chart. Very tiny, narrow top bands swell to a wide, solid base of youth and young adults.

This is the picture of a stable society both long and short term.

In the animation, each decade’s demographics are replaced with subsequent years in order. You can graphically see the shift from a wide-based, narrow-topped pyramid to a shape more cylindrical … and obviously less stable.

Click the links below to see the animated graphics.

World Population Pyramid

United States of America Population Pyramid