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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Earth Day
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Autumnal equinox
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Happy Lunar New Year!
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Signs of life in the Empty Quarter
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Salmon migration in full swing
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Remembering Jimmy Carter
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Skyscraper Day
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Spotted Lake emerges
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World Rhinoceros Day
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Ancient storage in the Grand Canyon
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National Merry-Go-Round Day
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National Llama Day
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Hen Galan
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Cape Town at dusk
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Life in a North African town
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What does the fox dream?
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Making it work—in Norway
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Happy 800th, Salisbury Cathedral
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To Roswell, and beyond!
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A bridge of Madison County
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Not your average sandcastle
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Cheetah mother and cub
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Let s face it: It s World Emoji Day
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Swimming into the season
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Zoroaster Temple, Grand Canyon National Park, Arizona
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200th anniversary of Brazilian independence
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Gdańsk on the banks of the Motława, Poland
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Just another day in paradise
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New Year s Day
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A hit ballet, long after its debut
Bing Wallpaper Gallery

