Think energy efficiency isn’t working? Think again

A study shows that total energy use in the US is about the same from 1978 to 2005, despite a population increase of 33 percent. With population growth factored in the per capita energy consumption has been dramatically reduced due to a host of conservation and efficiency initiatives.
http://www.grist.org/energy-efficiency/2011-04-02-think-energy-efficiency-isnt-working-think-again