Today marks the second-ever World Reef Day, an observance created to help focus global attention on the deteriorating health of our planet"s vital reef systems, and also to help marshal efforts to help them recover. Why should we care about the health of ecosystems such as the Great Barrier Reef, seen in this photo? Because reefs are an easy indicator of how healthy our oceans are. And right now, reefs aren"t doing too well. What can we do? Learn about reefs—not just the dangers that put healthy reefs at risk, but why reefs are such a critical part of Earth"s greater ecosystems.
The largest living organism on Earth
Today in History
More Desktop Wallpapers:
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It’s Siblings Day!
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Kirkilai lakes, Biržai Regional Park, Lithuania
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Siblings Day
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Macro photograph of a migrant hawker dragonfly
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Dressed for winter fun
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National Audubon Society s Christmas Bird Count
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World Meteorological Day
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A valley view at 9,000 feet
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Shadows on the solstice
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Spreadsheet Day
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International Sloth Day
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What happened to these clouds?
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Christmas comes to New York City
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Aurora borealis
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A notorious gunfight that was incorrectly named
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Walking among the giants
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A path into history
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Happy birthday, Saguaro National Park
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Landscape Architecture Month
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Silver-studded blue butterflies
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Happy Independence Day!
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Cloudy with a chance of enlightenment
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Vale of Edale, Peak District, England
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Nuwara Eliya, Sri Lanka
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A rest stop for the birds
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1, 1, 2, 3: It s Fibonacci Day!
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Plitvice Lakes National Park, Croatia
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National Llama Day
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Looking down on the Otter
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A holiday beacon of light