I'm starting a new category of post here in the sustainability section. A lot of the work I do is theory and a some of the work I do imvolves things no one really wants to try out at home (see In apartment home composting). However, I find occasionally trying things out that really anyone can do. I want to start sharing these tips with people that are like-minded on the sustainability front. Here are a few to start:
Approximately 0.0234 mg of mercury—plus carbon dioxide, sulfur dioxide and nitrogen oxide—releases into the air per 1 kwh of electricity that a coal-fired power plant generates. Over the 7500-hour average range of one CFL, then, a plant will emit 13.16 mg of mercury to sustain a 75-watt incandescent bulb but only 3.51 mg of mercury to sustain a 20-watt CFL (the lightning equivalent of a 75-watt traditional bulb). Even if the mercury contained in a CFL was directly released into the atmosphere, an incandescent would still contribute 4.65 more milligrams of mercury into the environment over its lifetime.
Most places that sell them take them back, or should know where you can take them back, if not a quick google search or call to your department of sanitation should do the trick.
I'll leave it at that for now. As I think of more things I'll add them to posts like this.