Boston Globe: Compact fluorescent lights — those energy-efficient bulbs popular as a way to combat global warming — can pose a small risk of mercury poisoning to infants, young children and pregnant women if they break, two reports concluded today. But the reports, issued by the state of Maine and the Vermont-based Mercury Policy Project, urged homeowners to keep using the bulbs because their energy-saving benefits far outweigh the risk posed by mercury release from any broken light. They said …