Light Pollution 101

The thief in our night is light – here's why.

Published 4 Apr 2019, 10:25 BST
Light Pollution 101

Ever since the light bulb's invention 150 years ago, artificial light has illuminated homes, streets, and skies -- but with some unintended consequences. Learn about the major types of light pollution, their impact on human health, and how the worldwide glow from artificial light may continue to grow.

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