21. EMU Astro Club-Light Pollution Essays on the causes and effects of light pollution, as well as information about local regulations to combat the problem. http://www.physics.emich.edu/sherzer/lightpol.htm

Our Vanishing Night Earth at Night - NASA image (click on image to enlarge) Erosion of the Night Sky from Light Pollution "I remember camping as a kid when we could see so many stars you couldn't tell one constellation from the next, and the Milky Way was a river of light". "It was so dark you could hardly see your hand in front of your face, and I saw my shadow on the ground from Venus!" The lucky ones among us have probably made these claims, but sights such as this are becoming increasingly rare. Only a generation ago, many could still see the Milky Way from their backyards. Unfortunately, the overuse and poor quality of modern outdoor lighting is fast destroying a valuable natural resource - a dark nighttime sky. The light pollution that results from this misuse is, however, the easiest of pollution sources to fix. Please read on.... turned off when not in use and the CPU energy star compliant) The Culprits: Poorly designed streetlighting - The next time you see the late evening news, notice the "tower camera" views TV stations often use. Then ask two simple questions: Why is the night sky orange instead of black? And, why are so many lights visible from the top of the building tower and from miles away? Generally, if you can see a fixture's light source from more than a hundred yards away, it's a bad fixture. Decades old designs such as cobra-style and

22. IDAHome Porter County, IN Passes Light Pollution Prevention Resolution (06 October 2010) County commissioners relate the resolution— the first in the state—to the existing green space http://www.darksky.org/

Home Contact Us Site Map Join ... Shop IDA Development Officer Bob Keesecker takes us on a virtual tour of Observatory Park in Montville Township, where construction is well underway. Get fast and easy dark sky updates Sign up for Night Watch, IDA's bi-weekly e-news Join Our Mailing List Email: Success stories for lighting ordinances Kitt Peak remains in dark, shows effectiveness of local lighting laws Kathryn F. Neugent and Philip Massey of Lowell Observatory They conclude that the brightness of the night sky at zenith is about the same as it was 20 years ago. The view toward Tucson has deteriorated significantly in that time but has stabilized in the past 10 years. Read article in the Porter County, IN Passes Light Pollution Prevention Resolution (06 October 2010) Read Dark Sky Updates IDA DC FSA Most Popular Highlights IDA at a Glance "Our Vanishing Night" is a beautiful mini-documentary by Jennifer West and Ian Cameron, members of the Royal Astronomical Society of Canada and faculty at the University of Manitoba Gizmodo: Why Living in Cities Sucks IDA Research Paper on Blue Light Visibility, Environmental, and Astronomical Issues Associated with Blue-Rich White Outdoor Lighting

23. Light Pollution Features links and information on light pollution relevant to Hawaii. http://www.hawastsoc.org/pollution.html

24. Light Pollution — National Geographic Magazine, National Geographic Magazine - Now most of humanity lives under intersecting domes of reflected, refracted light. Of all the pollutions we face, light pollution is perhaps the most easily remedied. http://ngm.nationalgeographic.com/2008/11/light-pollution/klinkenborg-text

25. Light Pollution Light Pollution Issues in New Jersey Light Pollution, what it is, and what you can do about it. New Jersey Light Pollution Study Commission's Report http://www.erols.com/njastro/orgs/lightpol.htm

Light Pollution Issues in New Jersey Light Pollution, what it is, and what you can do about it. New Jersey Light Pollution Study Commission's Report Light Pollution: Everyone's Problem A UACNJ report by Gordon Bond. Example letters you can send to help fight the light pollution problem in New Jersey. Light Pollution: The Neglected Problem An article by John Batinsey, member of the Eatontown, New Jersey, Environmental Commission, summarizing the aspects of LP (A version of this article appeared with the same title in the Winter 1994 issue of ANJEC Report, the journal of the New Jersey Environmental Commissioners.) State Commission Reports on Light Pollution An update report by John Batinsey encouraging contacting the Governor's Office concerning the results of the commission, local and state action, as well as a few notes on the New Jersey Highway Authority installing cutoff lighting. Fred Schaaf's Light-Pollution Notes International DarkSky Association (IDA) Need further information on dealing with Light Pollution in your neighborhood? Check out the Information Sheets on IDS's Web-site. Maybe by the time Halleys Comet returns, we can

26. ILPAC>EU Aimed at improving the quality of exterior lighting in Ireland and reducing light pollution. http://www.ilpac.eu/

27. WelcomeMembers You can focus on legislation, like IDA Northwest leader Dave Ingram, who is working with the WA State congress to pass a statewide light pollution law, or you can work with http://www.darksky.org/mc/page.do?sitePageId=55060

28. Light Pollution | Define Light Pollution At Dictionary.com –noun 1. unwanted or harmful light, as from bright street lights or neon signs. 2. Astronomy . artificial illumination of the sky that sets a limit on the faintness of stars http://dictionary.reference.com/browse/light pollution?qsrc=2446

29. Light Pollution- The Problem Looking from up there. One needs to be an astronaut to enjoy a view like one on the left, Florida from the Space Shuttle. However, most of us have contemplated similar views http://www.pha.jhu.edu/~atolea/second/page1.html

Looking from up there One needs to be an astronaut to enjoy a view like one on the left, Florida from the Space Shuttle. However, most of us have contemplated similar views during airplane takeoffs or landings. The view is fantastic, thousands of city lights shining like stars on the ground, outlining the roads and neighborhoods. But one has to go a little bit further than that and think. Should you see those lights at all? Is there any use of the light that you see, light that obviously goes up, other than illuminating bird and airplane bellies? Light stands for Lighting We all know why we have light outside. Outdoor lighting is used to illuminate roadways, parking lots, yards, sidewalks, public meeting areas, signs, work sites, and buildings. It provides us with better visibility and a sense of security. People sleep better when their property is properly lit, when their car outside is clearly visible through the window. However, light alone does not provide security, but a sense of security. Unless you're up all night, nothing guards you better than a barking dog, a fence/door/window security system or neighborhoog watch/police patrols in your neighborhood. When well designed and properly installed, outdoor lighting can be and is very useful in improving visibility and safety and a sense of security, while at the same time minimizing energy use and operating costs.

30. ASP: Light Pollution The Astronomical Society of the Pacific is an international nonprofit scientific and educational organization founded in 1889 that works to increase understanding and appreciation http://www.astrosociety.org/education/publications/tnl/44/lightpoll.html

www.astrosociety.org/uitc No. 44 - Fall 1998 Light Pollution Villains of Lighting Heroes of Lighting Light Pollution and the U.S. National Science Education Standards Activity 1 ... Resources It is an unfortunate fact of today's life that most people are growing up unable to see the stars that our grandparents knew so well. The prime night sky exists only in pictures or at a planetarium. This is true not only in cities but also in suburbs and in rural areas where street lamps and other sources of "light pollution" have obscured our view of constellations, meteor showers, and even the planets. Indeed, many children and adults say after viewing the night sky for the first time in a really dark area away from a city that "it looks just like this in the planetarium." We have lost our view of the stars, and we have mucked up our nighttime environment as well. Such a loss might be acceptable if light pollution were the inevitable price of progress, but it is not. Most sky glow is unnecessary. The light that obscures our view of the night sky comes mainly from inefficient lighting sources that do little to increase nighttime safety, security, or utility. They produce only glare and clutter, costing more than one billion dollars annually in the U.S. alone. The Earth at night For astronomy and science, the impact has been even more dramatic. Astronomers require observations of extremely faint objects that can be made only with large telescopes at sites free of air pollution and urban sky glow. For example, scientists interested in how the universe was formed may study the light of galaxies and quasars at enormous distances from Earth. These images offer information about faraway corners of the universe, helping us understand how our own world was formed. Yet, after traveling countless lightyears, the light from these objects can be lost at the very end of its journey in the glare of our own sky.

31. Light: A Type Of Pollution? | Light | AstroLab When stars disappear… One of the negative effects of industrialization on human activity and the environment is the production of excessive light. http://www.astro-canada.ca/_en/a3800.html

Introduction Site map Feedback Credits ... Astronomers One of the negative effects of industrialization on human activity and the environment is the production of excessive light. It may seem strange, but excess light is a form of pollution, particularly at night. The negative effects of light pollution impact many fields of study, including economics, ecology and, of course, astronomy. Most people do not consider the surplus of artificial light as a form of pollution because it is not permanent; all we must do is collectively turn out our lights to make it disappear. In reality, however, such a solution is unrealistic because our society needs artificial light to function. Light pollution is mainly caused by lighting systems that are misdirected, excessive, inefficient or unnecessary. Most light pollution is found in urban settings where artificial light sources are numerous. In these areas, light sources may be partly directed towards the sky, or downward directed light may be reflected upward. Light is then dispersed by layers in the atmosphere and produces a glow that diminishes the darkness of the night sky. In large Canadian cities, more than 95% of stars that can normally be seen with the naked eye are no longer visible. Unexpected negative effects From bacteria to the stars Wildlife and plants are also affected. For example, nighttime lighting can confuse animals that migrate (like moths and migratory birds), can modify predator-prey relationships, and can even alter competitiveness within the same species.

32. New England Light Pollution Advisory Group (NELPAG) Everything to do with the problem in New England. Lots of links. Includes information on how to subscribe to the NELPAG forum. http://www.cfa.harvard.edu/nelpag/nelpag.html

The New England Light Pollution Advisory Group The New England Light Pollution Advisory Group (NELPAG) is a volunteer group founded during the autumn of 1993 for the purpose of educating the public on the virtues of efficient, glare-free outdoor night lighting and the tremendous benefits of low-lumen (low-light-output) lighting for many (if not most) outdoor applications. The NELPAG sponsors irregular meetings throughout the New England region that bring together lighting engineers, physicians, power utility representatives, government officials, astronomers, journalists, and the general public for discussion of improvement in outdoor night lighting. The goals of the NELPAG have been to provide resources to people involved in outdoor lighting issues, from state and city/town officials discussing the implementation of laws and bylaws, to utility companies who are concerned with street lighting, to ordinary people interested in lighting their store parking lot (or even their driveway or yard). Many outdoor lights are, in fact, completely unnecessary (such as most lights late at night, and streetlights along most limited-access highways, where 6-foot-high median barriers would provide much greater safety). On a separate webpage here, we outline the

33. SDAA / Light Pollution Light Pollution News Info. The fight for dark skies rages on. http://www.sdaa.org/Light Pollution

SDAA log in help Wiki View Light Pollution The fight for dark skies rages on. The United States at night from space, where the amount of light radiating up into the sky is quite evident.. Although San Diego is blessed with good weather and good astronomy, our proximity to the population density of Southern California produces a sky glow that can overwhelm the night. Both the City of San Diego and County of San Diego have adopted laws to preserve our night skies. Light pollution has much further ranging effects than astronomy, however. In 1997, the City of San Diego began rewriting the San Diego Municipal Code. Effective January 1, 2000, Chapter 14, Article 2 Division 7 Outdoor Lighting Regulations Code section 142.0740 and 142.0560 H(2) for parking lot shielding, replaces the former section know as the "Light Pollution Law." Bright street lights shining onto your property is a legal nuisance. For neighbors with bothersome lights, San Diego Municipal Code provides: "(a) Outdoor lighting fixtures that are used to illuminate a premises or an architectural feature on private property shall be directed or shaded so that light does not fall onto surrounding properties or create glare hazards within public rights-of-way." If a violation of the Municipal Code is noted, such as unshielded outdoor lighting (142.0740(a)), call the Neighborhood Code Compliance Department at 619-236-5500 to lodge a complaint. Generally they will not release your name to the offender, but you will need to leave a name with the City. A Code Enforcement officer will then visit the site (at night).

34. CBC News InDepth: Space space, light pollution, stars The International DarkSky Association wants to stop the adverse effects of light pollution on skies. http://www.cbc.ca/news/background/space/light-pollution.html

35. Institution Of Lighting Professionals - Home Forerunner in light pollution control in the UK. Publishes lighting codes and guidance available via the website. Website content is minimal. http://www.ile.org.uk/

Home News About Us Room Hire ... Forums Username Password Lost Login Details? Mail Chantal here HOME DIARY ... MEMBERS Home Latest News See all news Save Money and Keep the Lights ON The Institution of Lighting Professionals has issued a briefing note for decision-makers with responsibility for public realm lighting. More Lighting Design Awards 2011 - Extended Deadline The Lighting Design Awards 2011 is fast approaching, and the entry deadline for both projects and products has now been extended. More Fears over street lighting cutbacks The growing number of councils across the UK that are switching off street lights has prompted criticism from MPs and road safety groups.  Full story from the BBC or video version More MWay lighting to be turned off after midnight? An article in the Daily Telepgraph is indicating that motorway lighting is to be turned off after midnight to cut cash and Britain's carbon footprint. More The State of the Nation's Street Lighting 2010 A new edition of the industry survey. More The Institution of Lighting Professionals (ILP) is the UK and Ireland's largest and most influential professional lighting association, dedicated solely to excellence in lighting. Founded in 1924 as the Association of Public Lighting Engineers, the ILP has evolved to include lighting designers, consultants and engineers amongst its 2,200 strong membership. To find out more about us, click here You can now join as an Affiliate ONLINE To see ILP events you can click here to view our diary or here to find out more about the ILP Events team.

36. Light Pollution Meetup Groups - Light Pollution Meetups Helps groups of people with shared interests plan meetings and form offline clubs in local communities around the world about Light Pollution http://lightpollution.meetup.com/

37. Light Pollution Information about the problem in Croydon. http://www.croydonastro.org.uk/lights.htm

38. Donate To FLAP Information on how light pollution affects birds, and what steps must be taken to save the lives of birds by reducing lighting. http://www.flap.org/

Each year in Toronto, over a million birds are killed by colliding with buildings.

39. Illustrations / Objects / Collage | Light Pollution, Inc. Light Pollution, Inc. offers contemporary art inspired by the beauty of place. Illustrations, Objects, Collage. Enjoy! Nancy Wood http://www.lightpollutioninc.com/

40. DarkSky Locator Use this site to find a light-pollution-free location. View conditions from various cities around the world. http://home.hiwaay.net/~krcool/Astro/Night/darksky.htm

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