Light pollution is a man-made problem caused by the excessive use of artificial lights, especially at night. These lights can disrupt natural sleep cycles, waste energy, and even mislead migratory ...

Global light pollution is increasing, but in large areas of the planet, such as Europe, it is decreasing due to technological ...

MT HAMILTON, Calif. (KGO) -- One of the world's leading astronomical research facilities is right here in the Bay Area, but scientists there say they're worried that a growing local trend will make it ...

During today’s time of rising political tension, racial and gender equality disputes, and fears in the possibilities of artificial intelligence, I would like to call attention to an issue that gets ...

Americans are losing their starry views to light pollution. But some communities are make lighting decisions to help preserve night skies – while benefiting wildlife and human health. Just a few ...

Astronomers around the world are calling for international agreements to limit the spread of satellite constellations in space, with warnings that light pollution at night from the satellites damages ...

In the early 20th century, canaries were used as early warning systems in coal mines to alert miners to rising levels of carbon monoxide. A small unremarkable fish may fill a similar role in coastal ...

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 ...

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 ...

Light pollution is caused by the bright glow of artificial lights from towns and cities. It can be a problem for photographers taking pictures at night, adding a yellow color cast, haze, and reducing ...