Fénycsökkenés
Fénycsökkenés, or light pollution, refers to the excessive or misdirected use of artificial light at night. It encompasses several types of light pollution, including sky glow, glare, light trespass, and clutter. Sky glow is the brightening of the night sky over inhabited areas, making it difficult to observe stars. Glare is the excessive brightness that causes visual discomfort. Light trespass occurs when light spills onto areas where it is not intended or needed, such as a neighbor's property. Clutter refers to confusing and excessive groupings of light sources.
The primary causes of light pollution are inefficient lighting fixtures that emit light in all directions,
Mitigating light pollution involves using shielded light fixtures that direct light downwards where it is needed,