Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...

Light pollution reduction (LPR) filters function by selectively blocking specific wavelengths of light emitted by certain artificial sources, such as high-pressure sodium streetlights, which ...

“Blue wavelengths of light are damaging to many forms of life, and glare from unshielded light compromises road safety and infiltrates bedrooms, suppressing melatonin production, undermining sleep ...

So, he decided to take matters into his hands and capture the galaxy at every pollution level in real-life. "I photographed ...

Scientists are tapping into photographs taken by astronauts aboard the International Space Station (ISS) to reliably measure the amount of light pollution worldwide. This study not only includes the ...

New research indicates that Artificial Light At Night (ALAN) increases ecosystem respiration, leading to a greater release of carbon from plants, microbes, and animals. This heightened carbon release ...

Bart Doudna of Cedar Rapids holds up his sons Cameron Doudna, 5, and Quinn Doudna, 2, while posing for a portrait with a large lighted diamond ring during the Five Seasons Lights at McGrath ...

Researchers from Italy, Chile and Galicia have studied and compared the light pollution levels at major astronomical observatories across the world. The study shows that light is polluting the sky ...

A recently published study found that the amount of light pollution produced within Southern California’s three coastal National Park Service units has not significantly changed, and in one case has ...

Clouds drift past the many channels of the Palo Alto Baylands as the sun sets in this file photo. Photo by Veronica Weber. In an effort to be not only be politically correct but also environmentally ...