


Light pollution is what happens when there's too much artificial light spilling in to the natural world. A recent study suggests light pollution -- in a light-drenched city like Washington, D.C., -- could be worse for us than previously thought. Emily Friedman shines a light on why we're struggling with the issue, and what we can do to remedy the situation.
[Music: "New Star in the Sky (Chanson Pour Solal)" by Air from Moon Safari]

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