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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					In praise of the old…the very old
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					Crown Fountain by Jume Plensa at Millennium Park in Chicago
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					Art abounds at the Palais Garnier
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					Scotts Bluff National Monument, Gering, Nebraska
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					A day to celebrate the sun
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					Hiding in plain sight
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					Embracing the cold
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					National Aviation Day
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					Squirrel Appreciation Day
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					Make your way up a picturesque passageway of Chefchaouen
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					International Mountain Day
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					Taking the scenic route
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					Let s ride! It s Roller Coaster Day
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					World Laughter Day—it s a hoot
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					Borovets ski resort in Bulgaria
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					Superbloom in Carrizo Plain National Monument, California
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					Christmas Eve
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					Remembering the Arizona
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					Colorful cows of the reef
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					Capitol Reef National Park, Utah
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					Porto, Portugal
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					World Lizard Day
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					Wild scene on the Merced River
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					Baddest of the badlands
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					A bison preserve
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					Tulips, Netherlands
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					It’s Giving Tuesday
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					Young black caiman, Tambopata National Reserve, Peru
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					Red squirrel
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					World Elephant Day
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