AccordingtopreliminaryWorldwatchestimates,totalenergyusein2012wasafull7percentbelowthe2007level,thesteepestfive-yeardecreaseinatleast60years.MostofthisdeclineresultsfromadvancesinU.S.energyproductivity—dominatedbygainsintransportationfueleconomyandbuildingefficiency.

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According to preliminary Worldwatch estimates, total energy use in 2012 was a full 7 percent below the 2007 level, the steepest five-year decrease in at least 60 years. Most of this decline results from advances in U.S. energy productivity—dominated by gains in transportation fuel economy and building efficiency.