EdWort
Well-Known Member
Depending where your electricity comes from, the coal-fired power plant will emit more mercury out its stack to light the incandescent bulb that is contained in the CFL. I haven't done all the math, but Wisconsin gets ~65% of its electricity from coal so I'm pretty sure I'd be ahead if I smashed the CFL when it burned out...and they can be recycled to recover the mercury.
CFL's from the last few years warm up a lot faster than they did 5 or 10 years ago. I leave the lights on in the kitchen all the time so the short warmup, while irritating, is pretty minor.
Mine comes from hydro electric. These bulbs will only save you money if they last as long as they say they do.