Name: The problem of light pollution -- and 5 ridiculously easy ways to fix it
Uploaded: 2019-12-04T16:18:48Z
Duration: 13 min 18 s
Description: Ever gaze up at the starry night sky? This stunning view is at risk of disappearing -- unless we act now, says astrophysicist Kelsey Johnson. In this fascinating, unexpectedly funny talk, she explains how light pollution affects almost every species on earth (including us) and shares five "stupidly simple" things you can do to help solve the problem.

Ever gaze up at the starry night sky? This stunning view is at risk of disappearing -- unless we act now, says astrophysicist Kelsey Johnson. In this fascinating, unexpectedly funny talk, she explains how light pollution affects almost every species on earth (including us) and shares five "stupidly simple" things you can do to help solve the problem.

Kelsey Johnson: The problem of light pollution -- and 5 ridiculously easy ways to fix it

The problem of light pollution -- and 5 ridiculously easy ways to fix it

Five simple steps to combat light pollution include using shielded, warm white LEDs and advocating for night-sky friendly policies.

Artificial lights erase the beauty of the night sky, harming ecosystems and human health alike with their relentless glow.

Light pollution doubles every 35 years, threatening to plunge the eastern U.S. into twilight brightness and erase cosmic wonder.