The International Dark Sky Association has published an excellent article on the Davis Case Study. Link Below
What is Light Pollution?
The inappropriate or excessive use of artificial light – known as light pollution – can have serious environmental consequences for humans, wildlife, and our climate. Components of light pollution include:
Local Outdoor Lighting Ordinances
Many cities and counties have an outdoor lighting ordinance restricting lighting levels, duration, and color temperature. Check with your jurisdiction about regulations before investing in your outdoor landscape lighting system. See Dark Sky & Ordinances page.
Dark Sky Lighting Fixtures
Davis article lighting courtesy of IDA.
Luminaire Shielding Designs Image courtesy of Bob Crelin