Want to make the switch to energy efficient, long-lasting Compact Fluorescent Lamps CFLs but dont know which brand is best for you and the environment? The Environmental Working Group has the answers youre looking for.

The EWG just released a study listing the top earth-friendly CFLs on the market. Lighten Up in 09 features the top brands and where to buy them, what to do when a bulb breaks CFLs contain mercury, and annual savings on energy and utility expenses. Seven bulbs with the lowest mercury content and the best longevity—lasting 8,000 to 15,000 hours the EnergyStar standard is 6,000 hours—got top honors in the study. The cream of the crop?

via Environmental Working Group Study Shines Light on Best and Worst CFLs : TreeHugger.