Compared to the “rich” terrestrial population (on a basis of 1 billion) and smoothed over the year, the world consumption of primary energy (all forms of energy combined) for the year 2004 represents approximately 13,3 kW.

During 2004, each human in a rich country therefore consumed the equivalent of a “virtual” boiler (but very real for the greenhouse effect and the depletion of resources, except nuclear and hydroelectricity) on his back of 13,34 kW…

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