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Light pollution competes with starlight in the night sky for urban residents, interferes with astronomical observatories, [16] and, like any other form of pollution, disrupts ecosystems and has adverse health effects. [17] [18] [19] Light pollution is a side-effect of industrial civilization. Its sources include building exterior and interior ...
Dark-sky movement. 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 ...
A light tower on Interstate 30 near Greenville, Texas. High-mast lighting is a tall pole with lighting attached to the top pointing towards the ground, usually but not always used to light a highway or recreational field. It is used at sites that require lighting over a large area. The pole that the lighting is mounted on is generally at least ...
An air quality index (AQI) is an indicator developed by government agencies [ 1 ] to communicate to the public how polluted the air currently is or how polluted it is forecast to become. [ 2 ][ 3 ] As air pollution levels rise, so does the AQI, along with the associated public health risk. Children, the elderly and individuals with respiratory ...
DarkSky's principal approach is to raise awareness about the value of dark, star-filled night skies and encourage their protection and restoration through education about the problems and solutions, including outdoor lighting practices that create less light pollution. In 2011, the organization had about 5,000 members in 70 countries.
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. The coordinating researchers compile this ...
Houston's air quality has often been compared to Los Angeles and Beijing. [49] Houston has introduced many programs since the 2000 federal order to reduce air pollution in the city. [citation needed] The most notable project was the METRORail light rail system constructed in 2004. The light rail system was designed to encourage Houstonians to ...
The climate in Texas is changing partially due to global warming and rising trends in greenhouse gas emissions. [1] As of 2016, most area of Texas had already warmed by 1.5 °F (0.83 °C) since the previous century because of greenhouse gas emissions by the United States and other countries. [1] Texas is expected to experience a wide range of ...