Overview

• Earth Hour 2025 will take place on March 22 from 8:30 PM to 9:30 PM local time, with lights turned off worldwide to promote environmental awareness.
• Nearly 100 municipalities in North Rhine-Westphalia (NRW), Germany, including major cities like Cologne, Essen, and Dortmund, will participate by dimming lights at landmarks and public buildings.
• Prominent sites such as the Cologne Cathedral, the Zeche Zollverein in Essen, and the Dortmunder U will remain unlit during the event to highlight the urgency of climate action.
• The event, organized by WWF, emphasizes advocacy under the motto 'Licht aus. Stimme an.' and includes public singing events in cities like Dortmund and Cologne to amplify its message.
• While primarily symbolic, the Earth Hour also aims to temporarily reduce light pollution, a significant issue in densely populated regions like the Ruhr area.