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In the February 25 Issue:

TABLE OF CONTENTS
Consciousness Emerges: Somewhere along a tangled path, sights, sounds and insights pop into awareness
Making Waves: Japanese quake gave scientists an unprecedented look at a big tsunami
Lessons from the Torpid: Hibernators have some helpful tips for keeping humans healthy

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KEEPING COOL

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Refrigerators, air conditioners, and many other products once used chemicals that not only harm stratospheric ozone but also climate. Phasing out the chemicals' use has had a major impact on keeping the planet from overheating quickly. Credit: iStockphoto

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