80 percent of the world’s population lives under what’s called “skyglow.” In the United States and Europe, 99 percent of the public can’t experience a natural night. Light is helpful to people, of course, but it’s also one of our greatest pollutants. Artificial light brings disastrous consequences to wildlife, especially birds, bats, insects, and sea turtles. 
This episode is a little different than most of our shows. Today, we travel to Hawaii Volcanoes National Park, where for generations, the night sky helped the original Polynesian sailors find their way across the sea. The audio comes from the park’s Voices of Science audio series, hosted by Brittni Connell, who talks with experts about light pollution and how the park is working to eradicate it.