An
Introduction to the Issues of Light Pollution
We all
win
by correcting the problems of inefficient
outdoor lighting at night.
• Many types of outdoor lighting designed
for advertising, security and visibility are actually wasteful, invasive and
a source of disabling glare.
• "Light trespass", the poor
control of outdoor lighting which crosses property lines, detracts from our
quality of life, and confuses the instinctive daily and seasonal cycles of
animals and plants.
• Although perceived as a deterrent to
crime, studies by the US Department of Justice* and the National Institute of
Justice* show no conclusive evidence that lighting actually prevents crime.
• Public hazards have been created by the
use of glaring, high-wattage floodlighting along roadways and business parking
lots, shining directly in the driver's line of sight.
• Public safety is also being compromised
by businesses competing with light levels to attract business. The eye's
inability to adjust quickly to drastic changes from light to dark,
leaves a driver temporarily blind when exiting an overlit
business area at night. It is not uncommon to see businesses using 3 to 6 times
the recognized, lighting industry recommendations for site lighting (IESNA).
• The recent awareness of global warming
concerns, due in a large part to power plant emissions, now demands an effort
to reduce our consumption of electricity.
• Because of this unnecessary condition,
many of our children today have already lost much of the starry night sky
behind the glow of wasted light, limiting their imaginations to the man-made
boundaries around them.
• By correcting these outdoor lighting
problems for the future we can save money and electricity, improve public safety
and increase visibility, while reducing air pollution and green house gas
emissions.
* 2005 DOE online, cost of light pollution nl67.pdf, IDA
* "Study of Streetlighting
And Crime" 7/77 by James M. Tien
/ US Dept. of Justice • www.darksky.org/ida/ida_2/info63.html
"Preventing Crime, What Works, What
Doesn't, What's Promising" A report to the US Congress / The National Institutue of Justice • www.ncjrs.org/works/wholedoc.htm
For more information, contact: The
International Dark Sky Association 3225 N.
Presented as a public service by the Astronomy Club of Augusta, serves the CSRA,
GA, SC - https://www.angelfire.com/ga/astronomyclubaugusta