This isn't a horror movie set. It's a road in Denmark. The streetlights are red to save the bats. Bats can't see red light the way they see white or green light, so to them, it's essentially darkness. White streetlights are one of the leading causes of bat decline in urban areas. Light-shy species avoid lit areas entirely, cutting them off from feeding grounds and migration routes. Standard streetlights reduce bat activity by up to 90% in some species. Denmark figured out a fix. So did the Netherlands. When they installed red LED streetlights along roads near bat colonies, bat activity returned to normal levels almost immediately. The lights still work fine for humans. Drivers can see. Cyclists can navigate. The only thing that changed is that the bats got their night back. Do you want your city to do this?
