Light Pollution The Costs of Poorly Implemented Outdoor Lighting.
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Transcript of Light Pollution The Costs of Poorly Implemented Outdoor Lighting.
Light Pollution
The Costs of Poorly Implemented Outdoor Lighting
Light Pollution
Purpose of LightingWhat is Light Pollution?Light Pollution’s Effects
How to Stop Light PollutionWhat’s Stopping Us?
Purposes of Lighting
• Safety• Security• Navigation• Decoration• Advertising
Light PollutionWhat is it?
Light Pollution—What is it?
• Glare• Uplight• Light Trespass• Overlighting• Inefficiency
Light Pollution is Glare
Light Pollution is Glare
Light Pollution is Uplight
Light Pollution is Uplight
Light Pollution is Trespass
Light Pollution is Trespass
Light Pollution is Overlighting
Light Pollution is Inefficiency
Light Pollution
Why is it bad?
Why is Light Pollution Bad?
• Safety• Security• Social• Waste• Pollution• Health Effects• Ecological Effects
Light Pollution—Safety
• Reduced visual acuity• Recovery time• Overlighting
Light Pollution—Security
• Reduces fear• Reduces crime ??
Light Pollution—Social
• Neighbor-neighbor tension• Resident complaints• Extreme behaviors
Light Pollution—Waste
• 30% of light wasted• $5,000,000,000+ per year wasted
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
Light Pollution—Human Health
• Air pollution related problems• Melatonin suppression• Sleep disruption
Light Pollution—Animals
• Birds• Amphibians• Fish• Insects
Light Pollution—Plants
• Water quality• Trees• Plants
Light Pollution
What can be done?
Light Pollution—What can we do?
• Technical Requirements• Implementation
Light Pollution—Technical
• Proper shielding
www.darkskysociety.org/handouts/blbn.pdf
• Proper shielding• Amount of light
Light Pollution—Technical
www.darksky.org/infoshts/is077.html
• Curfews• Lamp type• Don’t light
Light Pollution—Implementation
• Master plan• Zoning/Planning Board policy• Local law/ordinance• State law
Light Pollution
What’s holding us back?
Light Pollution—Impediments
• Lack of education• Vested and ulterior interests• “We’ve always done it that way”• Poorly written laws and policies
More information
• www.selene-ny.org• www.darksky.org• www.darkskysociety.org
