Turning It Down: Cities Combat Light Pollution By Going Dim | WAMU 88.5 - American University Radio

Turning It Down: Cities Combat Light Pollution By Going Dim

Play associated audio

Bright lights are part of a city's ecosystem. Think of Times Square or the Las Vegas Strip or right outside your bedroom window.

Electric lighting is ubiquitous in most urban and suburban neighborhoods. It's something most people take for granted, but appreciate, since it feels like well-lit streets keep us safer. But what if all this wattage is actually causing harm?

"We're getting brighter and brighter and brighter," warns Paul Bogard, author of the upcoming book, End of Night: Searching for Natural Darkness in an Age of Artificial Light.

Bogard says the developed world's desire to light up the night has gotten out of control.

"Things like gas stations and parking lots are lit now 10 times as bright as they were just 20 years ago," Bogard tells Celeste Headlee, host of weekends on All Things Considered. "It has everything to do with marketing, really. The gas station on the corner has figured out that if they turn up the lights, more people will be attracted to those lights."

And, Bogard says, all that light is having some unintended consequences. For one, it affects our sleeping patterns, he says.

Others say the effects of light pollution are worse.

Richard Stevens, an epidemiologist at the University of Connecticut Health Center, was one of the first to make the connection between bright, artificial light and breast cancer. Stevens' research found that artificial light can disrupt our body clock — and affect our production of melatonin.

"We know for sure that the lighting in the modern world can disrupt our circadian rhythms, and that cannot be good," Stevens tells Headlee.

Cities such as Santa Rosa, Calif., and Brainerd, Minn., are turning off a certain number of streetlights. Even Paris seems willing to cut down on its illumination to reduce light pollution.

The French Environment Ministry recently announced that starting this summer, office buildings and storefronts will have to turn off artificial lights between the hours of 1 a.m. and 7 a.m. Major landmarks like the Eiffel Tower will continue to be lit.

Yet Bogard says he hopes Paris will lead a lighting revolution.

"The fact that Paris, the city of lights, is choosing to control their use of light at night is fantastic, and can serve as a model for cities all over the world," he said.

Perhaps, someday soon, we'll get off the subway, look up at the dark city sky, and see the stars of the Milky Way again.

Copyright 2013 NPR. To see more, visit http://www.npr.org/.

NPR

From Her Dad To Her 'Jamish' Roots, A Poet Pieces Her Story Together

Salena Godden grew up in 1970s England with a Jamaican mom and an absent English-Irish dad. In her memoir, Springfield Road, she looks back on her struggle to find her personal identity.
NPR

If You've Ever Looked For Faces In Your Potato Chips, Thank Myrtle Young

The Potato Chip Lady, aka Myrtle Young, died in August of this year. She was 90. Young became famous after showing her collection of unusually shaped chips to Tonight Show host Johnny Carson in 1987.
NPR

Tennessee's Medicaid Deal Dodges A Partisan Fight

An agreement between the Tennessee Hospital Association and Republican Gov. Bill Haslam expands Medicaid without tax dollars, an agreement that could be a blueprint for other states.
NPR

Die-In, Vortex, Selfie Stick: What's The Word Of 2014?

In January, members of the American Dialect Society will vote on the 2014 Word of the Year. Linguist Ben Zimmer runs through some contenders — including words both old and new.

Leave a Comment

Help keep the conversation civil. Please refer to our Terms of Use and Code of Conduct before posting your comments.