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Arizona E-Billboard Expansion Defeated

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We are pleased to announce the defeat of Arizona House Bill 2507, which would have expanded the allowable range of electronic billboards in the state. Sponsored by State Rep. Sonny Borrelli of Lake Havasu City… Read More

How to Enact a Lighting Ordinance

A picture of the word "ordinance" in the dictionary.

By  Guest Writer Bob Gent Many of us are aware of the serious problems from light pollution. Blinding glare is a safety problem, light in your bedroom window disrupts sleep, bright lights disorient wildlife, there… Read More

Lessons from the Retrofit Revolution

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A recent news article draws attention to a new street lighting project just completed in downtown Philadelphia, Pennsylvania. This retrofit included replacing hundreds of high-pressure sodium lights with new, more energy-efficient, white LEDs. Philadelphia officials had good intentions in deploying… Read More

City’s LED Retrofit Shows Need For Careful Lighting Choices

A neighborhood on a lake with tall trees reflected in the water.

By Guest Author Jim Benya The initial LED streetlight installation went awry, but this story has a happy ending Davis, California, is a small city adjacent to a large university. The city has a well-educated… Read More

Citizens Push Back on LED Lighting

Downtown main street of Liberal, Kansas sports new streetlights with old-time character, but which pour light out in all directions and up into the sky. With no shielding the exposed globes cause much glare that makes seeing difficult.

By Chris Kyba, IDA board member and light pollution researcher If you don’t like what you see, why don’t you fight it? If you know there’s something wrong why don’t you right it? –Trooper Citizens… Read More

Planning Our Nights

A nighttime satellite image of Florida showing excessive lighting that creates skyglow.

Florida Planning magazine (published by the American Planning Association Florida Chapter) features a great article about protecting the night from a conservation planning perspective. The piece was written by IDA Board Member and Florida chapter… Read More

Take Action to Prevent ‘Projecting Change’ in NYC

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A planned outdoor light projection event this Saturday, August 1, will bathe New York City’s iconic Empire State Building in 800,000 lumens of light showing images of endangered species from around the world. The creators of the… Read More

IDA Pens Op-Ed on Phoenix’s New Lights

This screen shot from the NASA Blue Marble map shows the incredible amount of light coming stemming from Phoenix, Arizona

On Saturday, 13 June 2015, the Arizona Republic published the following guest editorial by IDA Executive Director Scott Feierabend on the subject of the pending conversion of street lights in Phoenix, Arizona, to white LEDs.  … Read More

New IDA LED Lighting Practical Guide

Three Pronged Street Lamp

The light-emitting diode (LED) is transforming the way we light our cities and towns offering a once-in-a-lifetime chance to radically improve how we use energy and our outdoor spaces at night. With this opportunity comes… Read More

IDA Issues New Standards on Blue Light at Night

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New rules strengthen IDA’s Fixture Seal of Approval program. TUCSON, AZ 01 December 2014 — The International Dark-Sky Association (IDA) is pleased to announce new requirements for its Fixture Seal of 
Approval (FSA) program of… Read More