Light Light pollutionpollutionIs the result of bad Is the result of bad lighting design, lighting design, which allows which allows artificial light to artificial light to shine outward and shine outward and upward into the upward into the sky, where it's not sky, where it's not wanted, instead of wanted, instead of focusing it focusing it downward.downward.

TwoTwo categoriescategories of light pollution of light pollution

Light GlareLight Glare

Glare is the unused light that shines out Glare is the unused light that shines out and up.and up.

Light TrespassLight Trespass

Lighting that trespasses into your Lighting that trespasses into your windows or propertywindows or property

Prevents you from getting a good nights Prevents you from getting a good nights sleepsleep

Over-lighted Parking Areas and Commercial Establishments – Note the Glare

Sag Lens (Cobra Head) Street Light Fixtures -- Especially Sodium Vapor

35% to 50% of all Light Pollution Comes from Streetlights

CausesCauses

EfectsEfects

EnergyEnergy waste waste

Human health and psychology

-- Disruption of ecosystems

Disruption of ecosystems

Who and What does bad Who and What does bad lighting effect?lighting effect?

Our Sleeping Patterns & Our Sleeping Patterns & HealthHealth

Sea TurtlesSea Turtles

BirdsBirds Effect on astronomyEffect on astronomy

SolutionsSolutions

Residential Property Owners & Builders

On New Construction utilize fully shielded exterior lighting fixtures.

On Existing Construction replace old fixtures with fully shielded exterior lighting fixtures.

Cut off exterior lighting fixtures after midnight

Where necessary, utilize fully shielded area lighting fixtures

Full Cut Off Area Light

Residential Wall Mounted Lights

Actions that can be Actions that can be taken to Reverse the taken to Reverse the Effects of Light Effects of Light PollutionPollution

Turn-off signs and parking lot lighting fixtures after business hours

Commercial Property Owners & Builders

On Existing Sites replace old fixtures with fully shielded exterior lighting fixtures

On New Construction utilize fully shielded exterior lighting fixtures.

Reduce light levels on store fronts and in parking lots.

Commercial WallMounted Fixtures

Full Cut OffParking Lot Fixtures

More actions that can be taken More actions that can be taken to Reverse the Effects of to Reverse the Effects of Light PollutionLight Pollution

Of all the pollutions we face, light pollution is Of all the pollutions we face, light pollution is perhaps the most easily remedied. perhaps the most easily remedied.

Thanks for your attentionThanks for your attention

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