Lights Out Colorado

Radar

New York City “Tribute in Lights”

Radar during Tribute in Lights
Birds caught in light

Radar images showing almost 16,000 birds caught in the area around New York City’s “Tribute in Lights” after the unshielded lights are turned on for 20 minutes.  This shows the profound effect unshielded artificial light can have on migrating birds.  Kyle Horton, aeroecolab.com, Colorado State University.  See also the video of birds caught in the light.  

Lighting Examples

BEFORE shielding
BEFORE shielding
AFTER shielding
AFTER shielding
Residential Lighting Display
Residential Lighting Display

Photo: International Dark-sky Association

Glare from unshielded lighting
Glare from unshielded lighting

Photo: International Dark-sky Association

Shielded lighting on
Shielded lighting on. Photo: International Dark-sky Association

Photo: International Dark-sky Association

Shielded lighting.
Shielded lighting.

Photo: International Dark-sky Association

Shielding improves safety by allowing us to see into shadows. 

Photo: International Dark-sky Association

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