Noun
light pollution (uncountable)
An excess of artificial light, especially near urban areas, reducing visibility of stars, etc. in the night sky.
Synonym: photopollution
When I came to New York and I opened the window of the thirty-fifth-floor apartment, there's light pollution and fog, and I couldn't see my star. So I drew it on my wrist with a pen, but it kept washing away. Then I went to a tattoo parlor on Second Avenue and had it done. Gisele Bundchen
Reduction of natural sky polarization Light pollution is mostly unpolarized, and its addition to moonlight results in a decreased polarization signal. Source: Internet
Light pollution dramatically reduces the visibility of stars Light pollution, also known as photopollution or luminous pollution, is excessive, misdirected, or obtrusive artificial light. Source: Internet
Light pollution also has deleterious effects on other organisms such as migrating birds, sea turtle hatchlings, and insects. Source: Internet
Light pollution is a broad term that refers to multiple problems, all of which are caused by inefficient, unappealing, or (arguably) unnecessary use of artificial light. Source: Internet
Light pollution poses a serious threat in particular to nocturnal wildlife, having negative impacts on plant and animal physiology. Source: Internet