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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.
Jan 31, 2023 · This effect is light pollution—human-generated illumination cast up into the heavens—causing the sky itself to glow and washing out the stars.
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Studies show ambient light pollution obstructs firefly...
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Apr 1, 2024 · Vast areas of North America, Europe, the Middle East, and Asia are glowing with light, while only the most remote regions on Earth (Siberia, the Sahara, and the Amazon) are in total darkness. Some of the most light-polluted countries in the world are Singapore, Qatar, and Kuwait.
- 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
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.
Oct 11, 2018 · From radically disrupting ecosystems to increased CO2 emissions, light pollution goes far beyond just eliminating our view of the stars.
Jun 15, 2022 · How dark the night sky is affects wildlife including bats, migratory birds and insects. Light pollution threatens the health and natural cycles of humans, as well as wastes energy and money. Light pollution has increased by at least 49% over 25 years. Image: International Dark-Sky Association.
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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.
