O'Neill continues: Unlike incandescent bulbs, CFLs use small amounts of mercury to operate. Some concern has arisen over this, but according to life cycle assessments, far more mercury is released from the generation of power used for incandescent bulbs than in the manufacture and use of CFLs over the course of their working life. So while that still makes CFLs the better environmental choice, they should not be tossed out with your regular household trash. The good news is that mercury in CFLs can be recovered and recycled. IKEA has already implemented an in-store recycling program, and programs at Wal-Mart and Home Depot arent far behind. You can also bring them to your municipal household hazardous waste collection.