What's The Charge? - Science News

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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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What's the charge?

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Some — but not all — cash-register and credit-card receipts can be rich sources of exposure to BPA, a hormone-mimicking pollutant. Credit: Christopher Baker

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