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Globe at Night is an international scientific research program that crowdsources measurements of light pollution in the night sky. At set time periods within each year, the project asks people to count the number of stars that they can see from their location and report it to the project's website.
Light pollution is the presence of any unwanted, inappropriate, or excessive artificial lighting. [1] [2] In a descriptive sense, the term light pollution refers to the effects of any poorly implemented lighting sources, during the day or night. Light pollution can be understood not only as a phenomenon resulting from a specific source or kind ...
Ecological light pollution [1] is the effect of artificial light on individual organisms and on the structure of ecosystems as a whole.. The effect that artificial light has upon organisms is highly variable, [2] and ranges from beneficial (e.g. increased ability for predator species to observe prey) to immediately fatal (e.g. moths that are attracted to incandescent lanterns and are killed by ...
Light pollution is the presence of unwanted artificial light that brightens the night sky. Improperly shielded lights are the source of many of the issues regarding the light pollution in Hawai'i. [1] Urban centers in the cities are often so bathed in light that over a hundred kilometers from the city's edge, the light pollution resulting from ...
More than 99% of Americans live under skies polluted by light. But dark skies at the Grand Canyon and more than 145 other spots offer stargazing awe.
The Department of Physics at the University of Hong Kong took measurements from a number of locations in Hong Kong and ranked them against a benchmark of "normal dark sky", and found that the highest level of light pollution was the Hong Kong Tsim Sha Tsui was on average 1000 times brighter than the benchmark, and the worst reading in the world.
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The dark-sky movement is a campaign to reduce light pollution.The advantages of reducing light pollution include an increased number of stars visible at night, reducing the effects of electric lighting on the environment, improving the well-being, [1] health [2] and safety [3] of people and wildlife, [4] and cutting down on energy usage.