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Transition to LED Brings New Environmentally Responsiblity Standards for Outdoor Fixtures

Transition to LED Brings New Environmentally Responsiblity Standards for Outdoor Fixtures Thumbnail

The rapid advancement of LED technology is unparalleled in the lighting industry, which has caused cities and utilities to reevaluate the specifications used for their street and area lighting applications. Early generation LEDs were typically… Read More

3 Insects Affected by Light Pollution

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If all mankind were to disappear, the world would regenerate back to the rich state of equilibrium that existed ten thousand years ago. If insects were to vanish, the environment would collapse into chaos. — Naturalist E… Read More

Flagstaff AZ Images at Night Show Success with Years of Dark Sky Advocacy

Flagstaff AZ Images at Night Show Success with Years of Dark Sky Advocacy Thumbnail

New images taken by the National Park Service of Flagstaff, Arizona show the years of dedicated dark sky advocacy and restrictions has been a success. The aim for the images was to better understand the… Read More

Contact Your Elected Official to Fight Against Blue-Rich LED Street Lighting

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Many cities across the globe are replacing their older street lights with newer LED technology. Specifically, with the blue-rich white LED (light-emitting diode) lighting. While many praise the LED conversions as a money saving and… 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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New technical capabilities often come with unanticipated challenges. White LED lighting often has much higher levels of potentially harmful blue light. In 2010, IDA published its paper, “Visibility, Environmental, and Astronomical Issues Associated with Blue-Rich White… 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.

Good lighting is used only when needed, only where needed, in only the amount needed, and shielded so that the light does not emit into the sky. We’ve shared examples of good lighting, but every… 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

80% of World Population Lives Under Skyglow, New Study Finds

World map of artificial sky brightness. Image from the new "World Atlas of Artificial Night Sky Brightness."

A groundbreaking new study documenting light pollution across the globe finds that more than 80 percent of the world’s population lives under light polluted skies. The United States and Europe have it even worse, with… Read More