For every 75-watt incandescent light bulb which you replace with a 20-watt compact fluorescent, you’ll get the same amount of light but save 1,300 lbs. of CO2 and $55. (Compact fluorescents screw into regular sockets.) Fluorescents save 75% of the energy, yet they last much longer. Turn off unneeded lights, and save 376 lbs of carbon dioxide per year. Also, keep bulbs dust-free. Dust on a light bulb or dirt on a glass fixture can reduce the light it emits by 10 percent and make it seem that you need a higher-wattage light. When building a new home, include natural lighting features (skylights, suntubes, larger south-facing windows, etc.) to reduce the need for artificial lights. Adjust your schedule when possible to be active in daylight and sleep during the dark.
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