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Light Pollution PowerPoint PPT Presentation


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Light Pollution. The Costs of Poorly Implemented Outdoor Lighting. Light Pollution. Purpose of Lighting What is Light Pollution? Light Pollution’s Effects How to Stop Light Pollution What’s Stopping Us?. Purposes of Lighting. Safety Security Navigation Decoration Advertising.

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Light Pollution

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Light pollution l.jpg

Light Pollution

The Costs of Poorly Implemented Outdoor Lighting


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Light Pollution

Purpose of Lighting

What is Light Pollution?

Light Pollution’s Effects

How to Stop Light Pollution

What’s Stopping Us?


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Purposes of Lighting

  • Safety

  • Security

  • Navigation

  • Decoration

  • Advertising


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Light Pollution

What 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

  • 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


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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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Light Pollution—Technical

  • Proper shielding

  • Amount of light

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


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