March 31, 2023
  • Globe at Night, an international citizen-science campaign, study has highlighted that:
    • Night sky brightness has increased by 7-10% per year from artificial light between 2011-22.
    • Visibility of stars in night sky is declining by 10% per year because of light pollution.
  • Light pollution, also known as photo pollution, is the presence of anthropogenic light in night environment.
  • Impact of Light Pollution: Interferes with astronomical research, disrupts ecosystems, threat to nocturnal wildlife especially birds etc.
  • Skyglow is a form of light pollution characterized by diffuse illumination of night sky.
    • Easily visible over cities, it doesn’t include natural light sources such as moon and visible individual stars.
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