TED Talks Daily The problem of light pollution -- and 5 ridiculously easy ways to fix it | Kelsey Johnson
Dec 4, 2019
Kelsey Johnson, an astrophysicist passionate about our night skies, sheds light on the alarming effects of light pollution on all species, including humans. She shares heartfelt memories of stargazing and tackles the surprising health risks associated with artificial lighting, like sleep disorders. Johnson presents five ridiculously easy solutions to combat light pollution, encouraging everyone to take part in preserving the beauty of our natural night. Prepare to be both informed and inspired to make a change!
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Childhood Stargazing
- As a child, Kelsey Johnson found solace in stargazing, focusing on Vega until other stars disappeared.
- This instilled a sense of connection to the universe, insignificance, and importance.
Light Pollution's Impact
- Light meant for our streets goes up into the sky, creating a smog of light called light pollution.
- This pollution makes it difficult to see the stars, impacting astronomers' work.
Dog Whelks and Light Pollution
- Dog whelks, key invertebrate predators, are affected by light pollution, staying underwater longer near predators.
- This increases their risk and, due to their slow movement, population recovery takes decades, impacting the ecosystem.