Scientists are learning more about the adverse health affects of LEDs

A new study aims to provide some guidelines for the use of LED lights, which are quickly taking over the global lighting market but are known to create serious problems for wildlife and people.
“LEDs are a major focus of this paper because they are replacing existing outdoor lighting at a rapid pace and that is changing the nature of the outdoor environment in a way that is not going to be stopped,” says Travis Longcore of the University of Southern California. By 2020, LED lights are projected to account for 69 percent of the global market, a dramatic increase from nine percent just seven years ago. “LEDs are coming, but we can perhaps guide some of the ways in which they're used and the choices that are made relative to wildlife, because the color of light matters to wildlife," Longcore says. "It also matters to people and the circadian rhythms of life on Earth.”