Jennifer Bogo, senior science editor at Popular Mechanics magazine, and architectural lighting designer Gary Gordon, on why and how people can use compact fluorescent lightbulbs (CFLs).

Popular Mechanics tested a number of CFLs, and you can read their findings here. For more about how and where to recycle CFLs, go to lamprecycle.org. For information about recycling CFLs in New York City, go here.
For a previous Brian Lehrer Show segment on lighting, see "Let There Be Light" here.