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    • Skyglow, glare, light trespass and clutter

      • There are four main types of light pollution: skyglow, glare, light trespass and clutter. Human development, thoughtless behaviors, and poor light fixture design contribute to light pollution.
  1. Apr 1, 2024 · Light pollution, the excessive or inappropriate use of outdoor artificial light, is affecting human health, wildlife behavior, and our ability to observe stars and other celestial objects. That Earthly Sky Glow. Light pollution is a global issue.

    • Affects on Astronomy and Night Vision
    • Health Risks
    • Implications on Wildlife Behaviour
    • Additional Resources
    • Bibliography

    One of the immediate effects light pollution has on our environment is to obscure our view of the true night sky, according to telescope manufacturer Celestron. Without the presence of artificial light, the night sky is awash with celestial bodies, far away galaxiesand constellations. However, if you’re looking up from the belly of a big city, you’...

    Other than depriving us of a starry star, there are many more implications to excess use of artificial light, such as throwing the human body's natural cycle out of whack. Circadian rhythms are a group of physiological and neurological changes that occur in the body over a 24-hour-period. Collectively they’re also known as our body clock and is rel...

    Along with health issues, light pollution can interfere with the behaviours of wildlife. Nocturnal predators such as batsare among the most affected by light pollution. These flying mammals are well adapted to hunting at night and actively avoid illuminated areas. Unfortunately, their insect prey is attracted to light sources, which leads to barren...

    For more information about light pollution, check out "The End of Night: Searching for Natural Darkness in an Age of Artificial Light" by Paul Bogard and "Fighting Light Pollution: Smart Lighting Solutions for Individuals and Communities" by The International Dark-Sky Association.

    The International Dark-Sky Association "Light pollution", accessed April 2022.
    John E. Bortle, "The Bortle Dark-Sky Scale", accessed April 2022.
    Celestron, "What is light pollution and how does it affect views through my telescope?", February 2022.
    Rebecca Morelle, "Light pollution 'affects 80% of global population'", BBC, June 2016.
    • Scott Dutfield
  2. Oct 11, 2018 · From radically disrupting ecosystems to increased CO2 emissions, light pollution goes far beyond just eliminating our view of the stars.

  3. Sep 8, 2014 · Research suggests that artificial light at night can negatively affect human health, increasing risks for obesity, depression, sleep disorders, diabetes, breast cancer and more.

  4. Mar 20, 2024 · Exploring the repercussions of light pollution reveals affiliated challenges impacting human health, wildlife survival, and ecosystem stability. The studies soon to be explored collectively emphasize the urgency of comprehensive research, conservation efforts, and greater awareness to address light pollution and its impact.

  5. Oct 19, 2023 · Learn about the major types of light pollution, their impact on human health, and how the worldwide glow from artificial light may continue to grow. Ever since the light bulb's invention 150 years ago, artificial light has illuminated homes, streets, and skies — but with some unintended consequences.

  6. Jan 25, 2023 · There are four main types of light pollution: skyglow, glare, light trespass and clutter. Human development, thoughtless behaviors, and poor light fixture design contribute to light pollution.

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