Light pollution (presentation)

Light pollution is a side effect of industrial civilization.
Its sources include building exterior and interior lighting, advertising, commercial properties, offices, factories, streetlights, and illuminated sporting venues.
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Urban sky glow
Urban sky glow is a specific type of light pollution that occurs in densely populated areas
Causes
Urbanization and Population Growth
• As cities and towns expand, the demand for lighting increases.
Poor Lighting Design and Technology
• Inefficient lighting fixtures, such as those that emit light in all directions rather than directing it downwards, contribute to light pollution.
Inefficient Energy Practices
• Energy wastage due to inefficient lighting practices, such as leaving lights on when not needed or using overly bright fixtures, adds to the overall light pollution problem
Excessive Outdoor Lighting
• Unnecessary or excessive outdoor lighting, such as overly bright streetlights, decorative lighting, and illuminated signs, contribute to light pollution.
Disruption of Ecosystems Light pollution disrupts the natural day-night cycles and affects the behavior, reproduction, and migration patterns of various species Impact on Human Health Excessive exposure to artificial light at night can disrupt the human circadian rhythm, leading to sleep disorders, hormonal imbalances Energy Waste Light pollution wastes a significant amount of energy...

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