Excessive artificial light at night (ALAN) harms ecosystems and human health. LED lights, while energy-efficient, often produce excessive blue light, worsening ALAN. Properly designed outdoor lighting ...

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 ...

PALO ALTO, Calif. (KGO) -- The city of Palo Alto is considering new rules to cut out light pollution and they could go so far as a 10 p.m. curfew on all outdoor lights. Reportedly - 80% of Americans ...

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 ...

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Earth's satellite problem is only getting worse as time goes on and more satellites are sent into orbit. One of the chief issues with the number of satellites in orbit is how much they can affect our ...

BISMARCK — In the name of protecting migratory birds and the North Dakotans they fly over, some state lawmakers want to make the darkest spring nights darker. Other lawmakers, however, say state ...

Click to share on Facebook (Opens in new window) Click to share on Reddit (Opens in new window) Click to share on Twitter (Opens in new window) An bright streetlight casts a multidirectional glow over ...

Exposure to outdoor light at night could put people at a higher risk of developing Alzheimer’s disease (AD), according to a new study published in Frontiers in Neuroscience. "We show that, in the U.S.