After sunset

Photo: zeratul/500px

This year, Earth Hour doesn't have to be an hour of darkness. The World Wildlife Fund's "lights out" campaign is just as much about reducing greenhouse gases as it is about appreciating the world we live in and motivating one another to care more about it.

So when the sun is gone, go outside. Revel in the fading light and enjoy the sounds of nature — rustling leaves, chatting frogs, maybe even a cricket or two. If the stars are out, enjoy the view free of light pollution. And if the thought alone doesn't quite push you out the door, perhaps some of these amazing photos will offer some motivation:

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Italy

Photo: Luca Casartelli/500px

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Lake

Photo: zeratul/500px

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Plants

Photo: Tony Wood/500px

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Pier

Photo: Nat Ditsathan/500px

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Evening mountains

Photo: harmish khambhaita/500px

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Lighthouse

Photo: Jesús Alenda/500px

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Tree

Photo: Sascha Emi/500px

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Couple stargazing

Photo: GulliversLab/500px

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Aurora

Photo: Claudia Regina/500px

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Moonrise

Photo: Mark Seton/500px

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late evening

Photo: Neal Elward/500px

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Dark night with stars

Photo: Rick Wu/500px

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Night at a park

Photo: Gonzalo Malpartida/500px

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Starry night

Photo: Vitor Esteves/500px

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Anna Norris is an associate editor at Mother Nature Network. Follow her on Twitter and Google+.

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