Recently BBC published an article about how light pollution is growing in the world. „Between 2012 and 2016, the planet‘s artificially lit outdoor area grew by more than 2% per year.“ This results in a negative consequences for flora, fauna and human well-being
Light pollution is an undesirable affect from lighting which can cause a sly glow over cities, glare and more. In a way its not the light itself that causes the pollution, its a badly designed lighting that causes it. (Smarter Scotland, 2007)
Here you can read the article.