Torbin Christensen

Dec. 05, 2008

Climate Update

In this segment, we'll get the latest on climate news around the world -- from new rifts in the Wilkins Ice Shelf, to the new round of international climate talks now underway in Poland.

climate, ice, climate change, melting, methane

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Michael Pollan Talks Plants and Food

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Whale Tales

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Mystery Box

How Humpbacks Hunt With Bubbles

Humpback whales blow bubbles around schools of fish to concentrate them for easier capture. It's called a bubble net, says David Wiley, research coordinator for Stellwagen Bank National Marine Sanctuary, and it's visible as a ring of bubbles at the surface. Now, with underwater digital tracking tags and custom visualization software, whale researchers can see what the whales are doing underwater when they're bubble-netting.

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