Light pollution refers to the excessive, misdirected, or obtrusive artificial light produced by human activities. It disrupts natural darkness in the environment and can have several negative effects on both human health and local ecosystems. There are several types of light pollution, including:
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Skyglow: The brightening of the night sky over populated areas, which obscures the visibility of stars and celestial objects.
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Glare: Excessive brightness that causes visual discomfort. Glare can be particularly dangerous for drivers and pedestrians.
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Light Trespass: Unwanted or intrusive artificial light that spills over into areas where it is not needed or wanted, such as residential areas.
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Clutter: An excessive grouping of lights, particularly in urban environments, which can create confusion or distraction, especially for drivers.
The sources of light pollution include streetlights, commercial and residential lighting, billboards, and vehicle headlights. Light pollution can have various impacts, such as disrupting wildlife and ecosystems, affecting human sleep patterns and circadian rhythms, and reducing the ability to observe stars and astronomical phenomena. Efforts to reduce light pollution often involve using more efficient lighting, shielding lights to direct them downward, and implementing community awareness programs.