Light pollution disrupts our ecosystem.
Light pollution affects the biological rhythm of animals such as birds, insects and rodents. We switch on millions of lights at night. Excessive lighting disturbs night time migrating birds, which are attracted to light at night and thus collide with structures. Millions of birds die this way each year.
Light pollution is threatening the future of this endangered marine turtle. Hatchling sea turtles attracted to light try to reach to the source of the light, assuming that the light comes from the sea, but they end up desiccated or eaten by predators near their natal beaches. 