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
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Happy New Year! (Again!)
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Dark Sky Week
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A peek behind the royal curtain
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Birthplace of Roman emperors
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Prayer flags in Phobjikha Valley, Bhutan
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Beyond Walls for World Refugee Day
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Here s looking at you
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Lizard of mystery
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National Moth Week
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Wooden path to Kennedy Lake, Vancouver Island, Canada
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Mendenhall Glacier, Alaska
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Azaleas blooming on Hwangmaesan Mountain, South Korea
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Palmyra Atoll National Wildlife Refuge
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Manatee Appreciation Day
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A new tradition in London
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Struck by Southwestern beauty
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A splash by the sea
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Ludwig’s palace
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Craig Goch Dam in the Elan Valley of Wales
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Broken Beach in Nusa Penida, Bali, Indonesia
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International Tiger Day
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Tassili n’Ajjer, Sahara, Algeria
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World Otter Day
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High alpine color in Colorado
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Mackerel forming a bait ball to avoid predators
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Have you turned off your electronic device?
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Honoring the first American woman in space
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Ancient groves in Australia
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Milwaukee City Hall, Wisconsin
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Merry Christmas
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