This Bulb

Compact Fluorescent Lighting – an easy way to save energy and do your part to stop global warming. Lighting accounts for 20% of the average home electric bill. CFL’s use less than 75% than an incandescent bulb, last up to 10 times longer, have very little upfront cost, and show a quick return on your investment.

Replacing 1 incandescent bulb in your home will save in one year enough energy to light 3 million homes. Over that period of time, using 1 CFL bulb will prevent greenhouse gas emissions equivalent to those of more than 800,000 cars.

Emails have been circulating about a concern with the mercury levels in these bulbs. CFL’s contain 5 milligrams of mercury – about enough to cover the end of a ballpoint pen. This is minuscule compared to the 500 milligrams found in traditional mercury thermometers. Thanks to technological advances and the commitment of the National Electrical Manufacturers Association, the 5 milligram level is anticipated to drop significantly by the end of this year.

For now, do not simply throw these bulbs in the trash. They require recycling. Go to www.earth911.org to find local recycling options. With every new advance comes new procedures – this is one of them. Think of it like disposing of motor oil – no big deal, just one more little step.

In this National Geographic Green Video, Natalie Portman, Kyra Sedgwick, and Chloe Sevigny explain the importance of making this simple change. Why stop with one? Replace every bulb in your house and do that math – now that’s stepping up.