Light pollution - excessive or misdirected artificial light at night - has become a growing environmental concern, with far-reaching consequences for wild animals. While it may seem harmless or even beneficial for human activity, artificial lighting disrupts natural ecosystems in ways that can be both subtle and severe.

Many species have evolved over millions of years to depend on natural light cycles governed by the sun, moon, and stars. When these cycles are altered, animals can become disoriented. Nocturnal animals are especially vulnerable. Creatures such as bats, owls, and certain insects depend on darkness for hunting, feeding, and avoiding predators. Artificial lighting can expose them to danger, reduce their ability to find food, or force them to abandon otherwise suitable habitats. Insects, in particular, are drawn to lights, often fatally, which disrupts food chains since many other animals rely on them as a primary food source.

Light pollution also interferes with reproduction. Beyond individual species, these disruptions ripple through entire ecosystems. Changes in predator-prey relationships, altered feeding patterns, and declining populations can destabilise biodiversity.

Addressing light pollution doesn’t require complete darkness but smarter lighting—using lower intensity, shielding lights downward, and reducing unnecessary nighttime illumination. By aligning human practices more closely with natural cycles, we can help protect wildlife and preserve the delicate balance of ecosystems.