The eco-geeks are hoping a new industry will spring up to safely recycle and reuse all the toxic nasties in the light bulbs.
However, even if that doesn't come about, the fact that flourescents and LEDs last 10 to 100 times longer than incandescents means switching over to them is still more environmentally friendly. And using less elictricity means less of the harmful stuff coming out of the coal-burning plants (which America mainly runs on) is also a step in the right direction.