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The old-fashioned streetlight is the recession's latest victim. To save money, some cities and towns are turning off lights, often lots of them.\n\nThe cost-cutting moves coincide with changing attitudes about streetlights. Once viewed as helpful safety measures, the lights are increasingly seen by some public officials and researchers as an environmental issue, creating light pollution and burning excess energy.
Human-made light sources can alter natural light cycles, causing animals that rely on light cues to make mistakes when moving through their environment
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