People, businesses and the government over the past decade or so have moved past those old incandescent light bulbs and are now using LEDs. The idea is that they're more efficient and better for the environment.  

It might not be the win everyone wants though, especially if you prefer the dark sky. Some environmentalists are now saying those LEDs are adding to the light pollution problem. Travis Longcore is an urban ecologist at UCLA and Ruskin Hartley is the executive director of the International Dark Sky Association.

People, businesses and the government over the past decade or so have moved past those old incandescent light bulbs and are now using LEDs. The idea is that they're more efficient and better for the environment.  
It might not be the win everyone wants though, especially if you prefer the dark sky. Some environmentalists are now saying those LEDs are adding to the light pollution problem. Travis Longcore is an urban ecologist at UCLA and Ruskin Hartley is the executive director of the International Dark Sky Association.

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