Light pollution caused by the incessant nighttime glow of electric lights appears to be intensifying, according to research using observations from tens of thousands of people at various locations around the world.
The study, published on Thursday, found that the number of visible stars reported at the observation sites from 2011 to 2022 decreased by an amount indicating an increase in nocturnal sky brightness of 7 to 10% annually, higher than previously measured using satellite data.
"The study is important for two reasons. First, it is the first time that sky brightness has ever been studied on the continental scale.
The researchers said more can be done to mitigate light pollution, including better design of the direction, extent and type of lighting used.
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