light pollution

American  

noun

1. unwanted or harmful light, as from bright street lights or neon signs.

2. Astronomy. artificial illumination of the sky that sets a limit on the faintness of stars that can be observed or photographed.

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light pollution British  

noun

1. the glow from street and domestic lighting that obscures the night sky and hinders the observation of faint stars

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Etymology

Origin of light pollution

First recorded in 1970–75

Example Sentences

A buildout of the claims could end public access to the area and permanently scar the landscape, drawing traffic and light pollution and harming springs and groundwater stores, he said.

From Los Angeles Times

But those living nearby have raised concerns about the impact it will have on light pollution, wildlife and the surrounding area.

From BBC

Robertson says light pollution is increasing, which affects human circadian rhythms, and the lives of other species.

From BBC

But there has to be no light pollution, which can be challenging in towns and cities across the UK.

From BBC

When it's cloudy, light pollution reflecting off the ground can make the clouds glow and look a lot like an aurora.

From BBC