I don’t know if its good for global warming but it does help on the electric bill.

and on a totally superficial note, kyra sedgewick looks extra pretty in the clip.

Here are a few reasons why it helps, off the top of my head:
1. The energy saving bulbs are more efficient in that they convert more electrical energy into light (25%), as opposed to regular bulbs (5%). The rest is converted into heat.
2. Last up to 10 times longer. Bulbs are thrown out with less frequency :).
3. These bulbs also produce light from less electricity than regular bulbs. Some say as much as 60-80% can be saved in energy.
4. Reduces CO2 emissions (hence if everyone in America replaced one bulb = one million cars off the road thing).

Thanks, Aysla, you beat me to it.

Every things that Nat does is measure, like the Bulb, taken care that she put saving people in Africa or the invironment she has a great heart and FINCA is an example of what she does in the World, some celebreties think only about themselves, but Nat is an exemption, and what she does for me is wonderfull like and actress that never loss her head. I would recomend her to an Oscar because she has always put her future in stake when I remember Where the heart is, Closer and many other films that she humbly realize started when she was only 12 years old. My heart is with her, because I love her to death.