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Light Pollution - PowerPoint PPT Presentation

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Light Pollution
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  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 • 62 billion kWh = 40 million tons of CO2 = 1.4 million tons SO2 = 1.1 million tons NO • Every kilowatt used causes release of: • 1.3 pounds CO2 • 2 grams sulfur dioxide • 1.6 grams nitric oxide 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

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

  28. Light Pollution—Technical • Proper shielding • Amount of light www.darksky.org/infoshts/is077.html • Curfews • Lamp type • Don’t light

  29. Light Pollution—Implementation • Master plan • Zoning/Planning Board policy • Local law/ordinance • State law

  30. Light Pollution What’s holding us back?

  31. Light Pollution—Impediments • Lack of education • Vested and ulterior interests • “We’ve always done it that way” • Poorly written laws and policies

  32. More information • www.selene-ny.org • www.darksky.org • www.darkskysociety.org