Ken Caldeira

Dec. 14, 2007

Coral in Crisis

The world's coral reefs are in great danger, threatened by climate change. We'll hear about new forecasts for the future of the world's coral.

coral, oceans, reefs, coral reefs

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Michael Pollan Talks Plants and Food

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Building Bridges From Plastic Shampoo Bottles

A New Jersey company transforms plastic waste into beams sturdy enough to support tanks and trains.

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