Population and Global Energy Use Calculator

Data can be entered in the off-white input boxes. (Results of calculations appear in the white input boxes.) Enter the starting year, the country, the initial population, the growth rate, the future year, and the total energy use for each country that you want to consider. Current per capita energy use is calculated. You also can enter a desired per capita energy goal. The population and total energy use of the future year will be calculated.

The table is currently populated with the top 8 energy users in 2011 and the 6 most populous countries. The future per capita energy use is based on the idea that low energy users increase their use and high energy users decrease theirs. A value of 130 GJ/person is selected to be the idea sustainable number that provides for a reasonably high quality of life.

If you don't want to use all the rows, make sure there are zeros in each column.

You can also use groups of countries. For example, build the table by continent or by quartile HDI (from Figure 3.1 and 3.2).

The world population in is million people.
The world population growth rate is %.                        Data may be entered in off-white input boxes
The total energy use for this year is EJ.                         Results of calculations are in white input boxes
The world population in will be million people.                                                     
 
Scroll down to see the rest of the table and the graphs.