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Light Pollution Measure Passed by Washington State

The City of Seattle, Washington, skyline at night with the Space Needle in the foreground.

On Friday, March 26, Washington Gov. Jay Inslee signed a supplemental state transportation budget that includes what may well be the first ever mention of light pollution to make it into state code. The transportation budget may seem an odd… Read More

IDA Publishes in LED Professional magazine

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IDA is excited to announce the publication of our ‘special topic’ article “The Value of Dark Skies – About Environmentally Friendly Lighting” in the March/April issue of LED Professional magazine. We are always trying to reach industry… 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

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

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