In "The City Dark," filmmaker Ian Cheney—who grew up in a small Maine town—ponders light pollution, a phenomenon foreign to him until he moved to New York City. To learn what the consequences of diminished darkness might be, he talks with experts, including astrophysicist Neil deGrasse Tyson. What he discovers: possible health implications for humans; and serious issues for such wildlife as sea turtles. Yet, as criminologist Jon Shane points out, there is some good: less crime in well-lit areas.
The City Dark Photos
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