light pollution
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Fancy streetlights save a lot of energy but steal your sleep
LED streetlights sound like a great idea. But there's a hitch.
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All that light pollution is wasting energy AND making you sick
Our addiction to electricity is giving everyone jet lag.
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The Earth at night like you’ve never seen it before
NASA has put together these amazing composite pictures, drawn from images collected on cloud-free nights.
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Austin dims its lights, everyone + science wins
A city council decision to invest $15 million in efficient lighting is not only a smart move, it's part of a great tradition started in Silicon Valley.