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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Why, aloe there
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A tower of light
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Happy Holi!
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In the Garden of Europe
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Presidents Day
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Sweetheart Abbey, Scotland
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A unique elephant encounter in Nantes
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When Death Valley blew its top
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Taking the scenic route to Sturgis
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A ‘circus of chaos’ for Stravinsky
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International Day of Light
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Killer whales in Spildra, Norway
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Extraterrestrial Culture Day
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Portland celebrates its bounty
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Celebrating National Park Week, April 21-29
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An historic forest
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Lights, camera, Sundance
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Necropolis of Dargavs
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National Hummingbird Day
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A keel-billed toucan in Costa Rica
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Poinsettia Day
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National Library Week
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Working for that cliffside view
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Yosemite National Park anniversary
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Big Bend National Park in Texas turns 81
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Martin Luther King Jr. Day
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Grand Canyon National Park turns 105
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National Hummingbird Day
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Leaves of Grass
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Cappadocia, Türkiye
Bing Wallpaper Gallery

