Source: The Guardian
Most invertebrates, including moths, beetles, and fireflies, are nocturnal, playing vital ecological roles. However, light pollution, driven by the widespread use of LEDs, disrupts their natural behaviors and ecosystems. Over the past decade, sky brightness has doubled every eight years, severely impacting wildlife.
Moths, for example, struggle with disorientation, disrupted mating, and reduced egg-laying due to artificial lights. This has led to a 52% decline in caterpillar populations, which affects species like blue tits that rely on them for food. Other nocturnal creatures, such as bats, crickets, and dung beetles, also suffer from altered behaviors. Fireflies mistake artificial lights for mates, threatening their survival.
Light pollution is one of the most preventable environmental threats. Simply turning off unnecessary lights can significantly reduce its impact. While artificial light is sometimes necessary, adopting better lighting strategies can help balance human needs with the protection of nocturnal wildlife and ecosystems.