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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Ubud, Bali, Indonesia
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Welcome to the pack
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Steyr River, Austria
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Carlsbad Caverns National Park in New Mexico
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Festivus
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Leshan Giant Buddha, Sichuan, China
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Queen Elizabeth s Platinum Jubilee
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30 years after Exxon Valdez
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A different view of sharks
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Iceland awaits the Yule Lads
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International Lighthouse Lightship Weekend
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A fair that s star-studded
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Sweet! It’s maple syrup season
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Dallas Latino Cultural Center for Hispanic Heritage
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Przewalskis horses, Hustai National Park, Mongolia
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Jaguar in the Pantanal wetlands
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Thomsons gazelles, Maasai Mara, Kenya
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Old Fortress, Corfu, Greece
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National Park Week: Wind Cave National Park
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Dusky eagle-owls, Pakistan
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Quiver trees, Keetmanshoop, Namibia
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A rest stop for the birds
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Happy International Day of Forests!
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Swim city
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Celebrating Bike to Work Week, May 14-18
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World Meteorological Day
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Talampaya National Park, Argentina
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Mapping courage in the Seventh Ward
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Daylight saving time begins
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Portland celebrates its bounty
Bing Wallpaper Gallery

