Danish city tests red streetlights to shield bats without sacrificing safety

In Gladsaxe near Copenhagen, red LED streetlights are replacing white ones along a key road to reduce light pollution and protect local nocturnal wildlife, especially bats, while preserving road safety. The move is part of the EU-funded Lighting Metropolis program and aims to boost energy efficiency, lower maintenance, and gather data on wildlife responses, potentially offering a scalable model for other cities.