Incandescent light bulbs are a relic of the past, a vastly inefficient past. Modern alternatives like CFLs and LEDs consume five to ten times less energy. For these reasons, the European Union or Australia have already phased them out.
More countries will be doing the same, namingly the United States and China. The latter will start banning 100-watt bulbs in October 2012. Last year over a billion of these bulbs were sold in the People’s Republic.
To Grist : ” The ban will save China 48 billion kilowatt hours of power per year. Which, if I’m doing my math right, is the equivalent of almost 100 nuclear reactors or large coal-fired power plants. “