DarkSky DC

Advocating for smart solutions to light pollution in the Nation’s Capital.

The Washington DC Chapter of DarkSky International addresses the problem of light pollution.

Nighttime street scene in Washington DC illuminated with globe streetlights that create light trespass and light pollution. The street scene includes parked cars, leafless trees, and storefronts and other shops.

Light pollution is one of the fastest growing forms of environmental pollution.

Light pollution disrupts wildlife, impacts human health, wastes money and energy, fosters climate change, and blocks our view of the universe.

Smarter lighting keeps us safe by enhancing visibility in public spaces while reducing unnecessary glare and light trespass.

Comparison of streetlights at different aiming and shielding levels: from unshielded and unacceptable to fully shielded and best with timer or motion sensor, illustrating reduced light pollution.

By directing light precisely where and when it’s needed, smarter lighting protects us from light pollution — preserving natural night skies, supporting ecosystems, and reducing disruptions to our sleep patterns.

See Lighting Solutions

Night view of the U.S. Capitol building with a starry sky in the background; this aspirational image was created with Gemini AI.

Join our movement to preserve the night sky for current and future generations.

Aspirational Image Generated with Gemini AI