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
Judge Ruled Against City of Monterey Over LED Conversion
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
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?
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
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
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
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
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
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
Lessons from the Retrofit Revolution
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