Should incandescent light bulbs be phased out in favour of fluorescent bulbs?
Yes, or even LED lightbulbs: http://www.thinkgeek.com/clearance/7aa8/ According to the federal government, if every American home replaced just one light bulb with an Energy Star approved compact fluorescent bulb (CFL), the United States would save enough energy to light more than 2.5 million homes for a year and prevent greenhouse gases equivalent to the emissions of nearly 800,000 cars.