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Tropical Forests (English)

Tropical forests are the most diverse and complex of the world's ecosystems. They are also among...Added June 22, 2010
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Atmosphere: Air Pollution and Its Effects (English)

Earth's atmosphere supports and protects all of its life, giving the planet its blue skies, mild...Added June 22, 2010
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Polar Regions: Human Impacts (English)

There is no place more remote than the Arctic and Antarctic, but their remoteness has not kept...Added June 22, 2010
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Water and Atmosphere: The Lifeblood of Natural Systems (English)

Without the crucial resources of water and atmosphere, life would not be possible on Earth....Added June 22, 2010
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Canyons (English)

Canyons chronicles the origins, history, and structure of the world's most breathtaking gorges,...Added June 22, 2010
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Floods: Hazards of Surface and Groundwater Systems (English)

There are many different types of floods, ranging from slowly rising regional floods to dramatic...Added June 22, 2010
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Immigrant, Inc: Why Immigrant Entrepreneurs Are Driving the New Economy (And How They Will Save the American Worker) (English)

A provocative look at the remarkable contributions of high-skillimmigrant entrepreneurs in...Added June 18, 2010
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America the Beautiful (English)

Master paper engineer Robert Sabuda has interpreted the classic American anthem "America the...Added June 8, 2010
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When You Reach Me (English)

This Newbery Medal winner that has a fantastic puzzle at its heart has been called "smart and...Added June 8, 2010
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Mouse Tales (English)

When Papa's seven little mouse boys ask for a bedtime story, Papa does even better than that—he...Added June 8, 2010