There is this to ponder:
Is it true that compact fluorescent light bulbs contain harmful mercury?Compact fluorescent lights contain a very small amount of mercury, significantly less than those in fever thermometers. This small amount of mercury slowly bonds with the phosphor coating on the lamp interior as the lamp ages, prohibiting its entry into the atmosphere. Even breaking a fluorescent bulb is not a significant health risk because the amount of mercury vapor released is so small that it dissipates into the air with a minimal chance of inhalation.
And this:
Ironically, compact fluorescent bulbs are responsible for less mercury contamination than the incandescent bulbs they replaced, even though incandescents don't contain any mercury. The highest source of mercury in America’s air and water results from the burning of fossil fuels, such as coal, at utilities that supply electricity. Since a compact fluorescent bulb uses 75 percent less energy than an incandescent bulb, and lasts at least six times longer, it is responsible for far less mercury pollution in the long run. A coal-burning power plant will emit four times more mercury to produce the electricity for an incandescent bulb than for a compact fluorescent.Then again, it might be enough for John Edwards and his friends to sue for damages...
