This doesn’t just cloud our view of the stars—it messes with the visual cues that tell wildlife when to migrate, hunt, and mate.
This type of pollution may sound benign, but it’s turned night into day across a staggering 80 percent of the world. This doesn’t just cloud our view of the stars—it messes with the visual cues that tell wildlife when to migrate, hunt, and mate. A study published in 2020 even found that light pollution, piling onto the threat from habitat loss and pesticides, puts 2,000 firefly species at risk of extinction.