User:Venus-vontrap/sandbox

Implications of light pollution: the adverse effects of artificial light

Public lighting is one of the largest sources of greenhouse emissions

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2627884/

Flora and Fauna: •	The growing pattern of trees have been disrupted and less adjusted to seasonal changes in weather and light. •	Causes a light distraction to birds I flight leading to more fatal bird crashes into sky scrapers and buildings, or migrate/mate too early •	Feeding behavior of bats altered by artificial light* •	Circadian rhythm disruptions that regulate human sleep cycles •	Disrupt plant growth •	Night sky Migrating birds use constellations to guide their journey now crash into illuminated buildings •	Sea turtles mistake the glow of electric lights for the shimmer of the ocean •	Astronomers need clear dark skies, light pollution washes out the view of the cosmos •	Wastes money and fossil fuels •	Astronomers •	Nocturnal Wildlife •	Human Circadian rhythm and sleep patterns •	Growth Patterns of Plants and Trees •	Wastes money and fossil fuels

http://physics.fau.edu/observatory/lightpol-environ.html

Participation

http://darksky.org

Review Lighting ordinance for you Educate local officials about light pollution and buying light efficient city lights

http://darksky.org/lighting/lighting-basics/

The International Dark-sky Association encourages light users to take precautions against outdoor light pollution by:

•	Using outdoors light only when needed •	Confine light to specific areas •	Beware that lights are only as bright as it is necessary •	Reducing the amount of blue light emissions used •	Use lighting that faces downward, in order to avoid over illumination- called fully shielded fixtures

http://darksky.org/resources/losing-the-dark/ Light trespass is the kind of light that spills out across the boundaries of the area in means to illuminate.