DiscoverLiving PlanetDeep Dive: Bright lights, big, LED cities
Deep Dive: Bright lights, big, LED cities

Deep Dive: Bright lights, big, LED cities

Update: 2024-12-06
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More and more cities are switching to LEDs to save money and, ultimately, the planet. But ecologists are worried about this trend. Dr. Chris Kyba explains why on a night walk through Cologne, one of Germany's brightest cities.
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Deep Dive: Bright lights, big, LED cities

Deep Dive: Bright lights, big, LED cities

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