Lightbulbs are synonymous with bright ideas — in cartoons, at any rate. But compact fluorescent bulbs can also be a small, yet brilliant, step toward energy efficiency. The Department of Energy says ...

Part of our work here at Grist is to give advice to curious readers, and one thing we find ourselves saying a lot is, “Change those bulbs to CFLs!” But you can only socket to ’em so many times before ...