light pollution the costs of poorly implemented outdoor lighting
TRANSCRIPT
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Light Pollution
The Costs of Poorly Implemented Outdoor Lighting
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Light Pollution
Purpose of LightingWhat is Light Pollution?Light Pollution’s Effects
How to Stop Light PollutionWhat’s Stopping Us?
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Purposes of Lighting
• Safety• Security• Navigation• Decoration• Advertising
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Light PollutionWhat is it?
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Light Pollution—What is it?
• Glare• Uplight• Light Trespass• Overlighting• Inefficiency
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Light Pollution is Glare
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Light Pollution is Glare
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Light Pollution is Uplight
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Light Pollution is Uplight
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Light Pollution is Trespass
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Light Pollution is Trespass
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Light Pollution is Overlighting
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Light Pollution is Inefficiency
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Light Pollution
Why is it bad?
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Why is Light Pollution Bad?
• Safety• Security• Social• Waste• Pollution• Health Effects• Ecological Effects
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Light Pollution—Safety
• Reduced visual acuity• Recovery time• Overlighting
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Light Pollution—Security
• Reduces fear• Reduces crime ??
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Light Pollution—Social
• Neighbor-neighbor tension• Resident complaints• Extreme behaviors
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Light Pollution—Waste
• 30% of light wasted• $5,000,000,000+ per year wasted
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Light Pollution—Pollution
• Every kilowatt used causes release of:– 1.3 pounds CO2
– 2 grams sulfur dioxide– 1.6 grams nitric oxide
selene-ny.org/lightcost.asp
• 62 billion kWh = 40 million tons of CO2
= 1.4 million tons SO2
= 1.1 million tons NO
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Light Pollution—Human Health
• Air pollution related problems• Melatonin suppression• Sleep disruption
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Light Pollution—Animals
• Birds• Amphibians• Fish• Insects
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Light Pollution—Plants
• Water quality• Trees• Plants
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Light Pollution
What can be done?
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Light Pollution—What can we do?
• Technical Requirements• Implementation
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Light Pollution—Technical
• Proper shielding
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www.darkskysociety.org/handouts/blbn.pdf
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• Proper shielding• Amount of light
Light Pollution—Technical
www.darksky.org/infoshts/is077.html
• Curfews• Lamp type• Don’t light
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Light Pollution—Implementation
• Master plan• Zoning/Planning Board policy• Local law/ordinance• State law
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Light Pollution
What’s holding us back?
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Light Pollution—Impediments
• Lack of education• Vested and ulterior interests• “We’ve always done it that way”• Poorly written laws and policies
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More information
• www.selene-ny.org• www.darksky.org• www.darkskysociety.org