Last year seemed to be a tipping point for Thomas Edison’s most ubiquitous invention. Early in 2007, California Assemblyman Lloyd E. Levine proposed legislation that would ban incandescent lamps. The move was dismissed as a political stunt, but it did initiate some global hand-wringing and soul-searching, and that led to political initiatives in Canada and the 27 member states of the European Council to announce that those countries would begin researching similar out-with-incandescent lamp strategies. In mid-year, Australia became the first country to proclaim a policy designed to eliminate the most energy-inefficient forms of incandescent lighting. This will take the form of a standard — yet to be determined — for light source efficiency that must be met by every lighting product sold. Whatever that standard eventually is, it will certainly be far greater than the approximately 5 percent efficiency of the everyday incandescent bulb, which loses 95 percent of its energy in the form of heat.
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