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Night Skies in Arizona and Beyond

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Arizona resident, Mike Powell, recently wrote a column for the Paris Review describing dark skies in Arizona. Powell describes the unique harshness of the desert sun and the surprising dark nights Arizonan's have been able to… Read More

3 Insects Affected by Light Pollution

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  Every year we see lots of new research on the effect of artificial light at night on various types of wildlife. Many of us know of the impact of light pollution on wildlife such… Read More

Judge Ruled Against City of Monterey Over LED Conversion

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Recently, a judge ruled against the city of Monterey, stating they violated the California Environmental Quality Act and the Brown Act when they began their LED streetlight conversion in 2009. A group of Monterey residents calling… Read More

Call to Action! Contact Chicago’s Administration to Demand a Responsible Outdoor Lighting Plan

Call to Action! Contact Chicago’s Administration to Demand a Responsible Outdoor Lighting Plan Thumbnail

IDA's Executive Director, Scott Feierabend has sent an urgent letter to Chicago's Mayor, Rahm Emanuel's regarding the proposed outdoor lighting plan. This letter urges Emanuel and his Administration to choose a safe, responsible outdoor lighting… Read More

Why is Blue Light at Night Bad?

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The Harvard Health Publications article, "Blue light has a dark side," describes artificial lighting that emits the blue color spectrum light throws off the body's circadian rhythm off balance. While not all colors have the same negative… Read More

5 Popular Myths About LED Streetlights

Streetlights on city street at night create glare making it hard to see.

The rapid changes in LED lighting technology have given rise to an LED retrofit revolution. Across the globe, municipalities are opting to switch out their older street lighting to new, more energy-efficient LEDs. Unfortunately, these… Read More

Really, Really Bad Lighting

An "acorn" outdoor street light at night gives off a lot of glare because it's not shielded.

We’ve all seen examples of good and bad lighting, but every once in a while there’s an example of lighting that is extremely bad. We present to you four examples of the some of the… Read More

Be Part of the Global Debate On LEDs

Light pollution in New York City. Photo by Jim Richardson.

For the past five years, IDA has sounded the alarm about the environmental and health impacts of blue-rich white light-emitting diode (LED) street lighting that is replacing older technologies in cities across the globe. Recently… Read More

Night Lights and Prosperity Don’t Always Go Hand in Hand

Photo ISS043-E-247811 of North and South Korea from the International Space Station ISS.

By guest writer Chris Kyba North Korea is famously dark compared to South Korea and China at night, and images like the one above are often used to demonstrate the consequences of its "unenlightened" policies. I certainly wouldn't… 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