New studies from Germany and Hong Kong pinpoint specific sources of light pollution keeping our cities excessively bright at ...

After passing a Dark Sky ordinance to curb light pollution and save energy, Pittsburgh is installing adjustable streetlights.

Light pollution has devastating effects on the ocean's marine life. We spoke to an expert to find out how serious it is, and ...

"Report them." Disgruntled driver captures photo of inexplicable trend on US roadways: 'It's so annoying' first appeared on ...

"So ridiculous." Resident sparks outrage with photo of new 'eyesore' taking over neighborhood: 'I can't believe they allow this monstrosity' first appeared on The Cool Down.

Light pollution can significantly affect our health, especially by disturbing our circadian rhythm which is the body's internal clock that regulates sleep-wake cycles.

Learn simple steps to limit light pollution in Texas, protect wildlife, and enjoy darker, star-filled night skies.

Communities around the world trying to manage blooms of toxic algae and cyanobacteria already know they have to control nutrient pollution.

Light pollution is a worsening problem in Massachusetts, with a 10% annual increase over the past decade.

Light pollution is increasing globally, and having a negative impact on wildlife and humans. But the solutions are surprisingly simple.

Light pollution is increasing globally, and having a negative impact on wildlife and humans. But according to DarkSky International, the solutions are surprisingly simple.