The difference between night and day is disappearing, scientists warn

The difference between night and day is disappearing, scientists warn  Washington Post Energy-saving LEDs boost light pollution worldwide  Phys.Org Is the switch to LED light outdoors responsible for ruining our view of the night sky?  Mashable Light pollution increasing around the globe, researchers say  CBS News The Switch to Outdoor LED Lighting Has Completely Backfired  GizmodoFull coverage

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