Why This Pennsylvania City Put Its Streetlights on a Dimmer

The city of Pittsburgh, Pennsylvania, has passed a Dark Sky ordinance to reduce light pollution and conserve energy. As part of this initiative, the city is installing adjustable streetlights that can be dimmed. The new streetlights will allow the city to control the brightness of the lights based on the time of day and specific needs of different areas. During late-night hours, the lights can be dimmed to save energy and minimize the impact on the night sky. This move is expected to result in significant energy savings for the city, as well as a reduction in light pollution, which can have negative effects on the environment and human health. The adjustable streetlights will also provide more flexibility in lighting levels, allowing the city to tailor the brightness to the needs of each neighborhood. Overall, the implementation of this Dark Sky ordinance and the installation of adjustable streetlights demonstrate Pittsburgh's commitment to sustainability and environmental stewardship.