The document discusses light pollution, which refers to excessive, misdirected, or obtrusive artificial light. It identifies the main causes of light pollution as glare, uplight, light trespass, and overlighting. Light pollution wastes energy, pollutes the night sky, and has negative effects on human health, safety, wildlife, and the environment. The document recommends proper shielding of lights, using the minimum amount of light necessary, following curfews, using the right lamp types, and not lighting areas that don't need it as ways to reduce light pollution. Implementing these technical solutions through master plans, zoning laws, and policies can help address light pollution, but lack of education, vested interests, and

1. Light Pollution The Costs of Poorly Implemented Outdoor Lighting

2. Light Pollution Purpose of Lighting What is Light Pollution? Light Pollution's Effects How to Stop Light Pollution What's Stopping Us?

3. Purposes of Lighting Safety Security Navigation Decoration Advertising

4. Light Pollution What is it?

5. Light Pollution - What is it? Glare Uplight Light Trespass Overlighting Inefficiency

6. Light Pollution is Glare

7. Light Pollution is Glare

8. Light Pollution is Uplight

9. Light Pollution is Uplight

10. Light Pollution is Trespass

11. Light Pollution is Trespass

12. Light Pollution is Overlighting

13. Light Pollution is Inefficiency

14. Light Pollution Why is it bad?

15. Why is Light Pollution Bad? Safety Security Social Waste Pollution Health Effects Ecological Effects

16. Light Pollution - Safety Reduced visual acuity Recovery time Overlighting

17. Light Pollution - Security Reduces fear Reduces crime ??

18. Light Pollution - Social Neighbor-neighbor tension Resident complaints Extreme behaviors

19. Light Pollution - Waste 30% of light wasted $5,000,000,000+ per year wasted

20. Light Pollution - Pollution Every kilowatt used causes release of: 1.3 pounds CO2 2 grams sulfur dioxide 1.6 grams nitric oxide 62 billion kWh = 40 million tons of CO2 = 1.4 million tons SO2 = 1.1 million tons NO selene-ny.org/lightcost.asp

21. Light Pollution - Human Health Air pollution related problems Melatonin suppression Sleep disruption

22. Light Pollution - Animals Birds Amphibians Fish Insects

23. Light Pollution - Plants Water quality Trees Plants

24. Light Pollution What can be done?

25. Light Pollution - What can we do? Technical Requirements Implementation

26. Light Pollution - Technical Proper shielding

29. www.darkskysociety.org/handouts/blbn.pdf

30. Proper shielding Light Pollution - Technical Amount of light www.darksky.org/infoshts/is077.html Curfews Lamp type Don�t light

31. Light Pollution - Implementation Master plan Zoning/Planning Board policy Local law/ordinance State law

32. Light Pollution What's holding us back?

33. Light Pollution - Impediments Lack of education Vested and ulterior interests "We've always done it that way" Poorly written laws and policies

34. More information www.selene-ny.org www.darksky.org www.darkskysociety.org