Light pollution is excessive, misdirected, or obtrusive artificial (usually outdoor) light, Light pollution is a side effect of industrial civilization. Its sources include building exterior and interior lighting, advertising, offices, and streetlights. Light pollution is a waste of energy and a determent to our environment. Lighting is responsible for one-fourth of all electricity consumption worldwideOutdoor lighting uses about 120 terawatt-hours of energy. Over illumination wastes a lot of energy, the inefficient design of said outdoor lights wastes most of the energy put forward to light the area for only about 40% of the light that is used in the outdoor lights helps us see at night. Light pollution Interferes with the timing of necessary biological activities, from nocturnal species sleeping patterns to migratory patterns of other nocturnal birds. Life revolves around the natural patterns of light and dark, these patterns are built into most species on earth's DNA species on earth have lived with day and night for millennia and artificial light is only interfering with their daily processes. Certain species avoid light purposely to carry out some of their biological functions and artificial light is not helping. Artificial lights even affect us humans, production of our hormones, various cancers and even anxiety issues have all been linked to our output of artificial light. The most notorious thing associated with light pollution is that it blocks our view of the beautiful night sky.Even though we may be able to see in the dark now the light we humans create affects so much in negative ways.
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