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Light pollution is a growing problem worldwide. Like other forms of pollution, light pollution degrades the quality ofthe environment.Where it was once possible to look up at the night sky and see thousands of twinkling stars in the inky blackness,one now sees little more than the yellow glare of urban sky-glow.When we lose the ability to connect visually with the vastness of the universe by looking up at the night sky,we lose our connection with something profoundly important to the human spirit,our sense of wonder. The passage implies that the most serious damage done by light pollution is to our