# Energy extraction technology usage

## Idea

To gain a sense of the relative scale of the proportions to world energy usage, the following treemap shows the proportions of world energy used in 2005 according to its “source”. The total area of the diagram represents the entire usage of that year, and the area of subrectangles are proportional to their contribution.

It can be seen that fossil fuels of various types account for the vast majority of energy used.

Source: World Energy Usage, Wikipedia.