Tag: light pollution

Harvard Law School student studies light pollution case law for IDA

News

Tucson, AZ — Harvard Law School student, Iris Zhou, performed a three-week internship at IDA Headquarters in Tucson, Arizona …

March 15, 2018

Five Years of Satellite Images Show Global Light Pollution Increasing at a Rate of Two Percent Per Year

News

Five years of advanced satellite images show that there is more artificial light at night across the globe, and …

November 22, 2017

5 Popular Myths About LED Streetlights

News

The rapid changes in LED lighting technology have given rise to an LED retrofit revolution. Across the globe, municipalities …

September 8, 2016

Take Action to Prevent ‘Projecting Change’ in NYC

News

A planned outdoor light projection event this Saturday, August 1, will bathe New York City’s iconic Empire State Building …

July 31, 2015

Scientific research into light pollution

Research

Light at night and the various forms of light pollution have measurable effects on humans, nighttime ecosystems, and more. …

June 7, 2024

Light Pollution Researchers Gather In Québec

News

Light pollution researchers from around the world met at Jouvence, Québec, Canada from 26-28 May 2015 for the second …

June 10, 2015

Measuring light pollution

Get involved

Solving light pollution requires measuring the brightness of the night sky. Learn how — become a community scientist!

July 21, 2023

Street lighting

Light Pollution

Streetlights can cause light trespass — light that falls where it’s not intended, wanted, or needed.

August 19, 2025

Natural darkness and human well-being

Effects of light pollution

With the rise of artificial light at night, our natural rhythms are being disrupted—while more research is needed, these …

November 17, 2025

Light pollution reduces our night sky heritage

Effects of light pollution

The nighttime environment is a precious natural resource for all life on Earth, but the glow of uncontrolled outdoor …

October 17, 2023

Light pollution harms wildlife and ecosystems

Causes of light pollution

For billions of years, all life has relied on Earth’s predictable rhythm of day and night. It’s encoded in …

November 13, 2023