Photo pollution/ Luminous pollution

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Presentation transcript:

Photo pollution/ Luminous pollution WHAT CONSEQUENCES EFFECTS Photo pollution/ Luminous pollution

Excessive artificial light  increased brightness The International Dark-Sky Association (IDA) adverse effect : sky glow glare light trespass light clutter Decreased visibilyty Energy waste

Outdoor (main pollutants): Indoor = lighting in houses or apartments (North America, Europe, Japan, Middle East, North Africa) Outdoor (main pollutants): more necessary (roadside lamps, traffic lights, vehicle lights, road sign lights, emergency vehicle lights...) Less necessary (store, commercial sign lights, the lights that enlight statues and buildings...)

Energy waste light bulbs energy resource deficiency  wars dishwashers energy crysis  save energy: energy saving washing machines refrigerators

sky observing interference telescope efficiency  dark sky La Silla observatory in Chile  6 hundred kilometres away from light Hinder to acquire knowledge sky observing interference

Types of pollution Light trespass Glare : Light clutter Sky glow Blinding glare Disability glare Discomfort glare Light clutter Sky glow

Human health Fluorescent lighting  elevate blood pressure by 8 points, increased stress & fatigue  worker errors  over-illuminating and bad planning of lighting (not light pollution)

Animals Changed mood & behaviour confuse animal navigation alter competitive interactions change predator-prey relations more aggressive

Disruption of ecosystems It can be: beneficial neutral damaging Spiders

Solutions adjusting light’s intensity turning lights off improving lighting fixtures adjusting the type evaluating the necessity of lights

Organisations and campaigns the IDA Globe at Night (global) ‘’Nebo ponoči’’ in Slovenia Earth Hour

Not really dangerous just disturbing and hindering

SOURCES http://www.darksky.org/, 01.01.2012 http://en.wikipedia.org/wiki/Light_pollution, 01.01.2012 http://www.astrosociety.org/education/publications/tnl/44/lightpoll.html, 01.01.2012 http://sl.wikipedia.org/wiki/Svetlobno_onesna%C5%BEenje, 30.12.2011 Pictures: Google