Why Artificial Light Should Now Be Legally Classed As Pollution

The Royal Astronomical Society is urging governments to classify artificial light at night as pollution.

The group says rising sky brightness is harming human health, wildlife, and astronomy.

It wants stronger lighting rules and legal changes in the U.K., including under the Environment Act 2021.

The call follows a January 2025 conference and aligns with efforts for darker skies and better outdoor lighting.