Say no to skyglow: Smarter lighting can help save the stars

We have inadvertently filled our world with poorly designed outdoor lighting. The price? We’re losing our starry skies, hurting our health, killing pollinators, wasting billions of dollars and releasing millions of tons of avoidable carbon dioxide. Now people in a Missouri college town and a state park are proving that picking the right bulbs and fixtures can curb light pollution and its harms.