Christopher Arp

Mar. 27, 2009

Rapid Alaskan Erosion

A 40-mile stretch of Alaskan coastline is eroding at a rate of 45 feet per year. We'll talk with a researcher studying the rapid crumbling of the strip of coastline.

arctic, climate, melting, global warming

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Michael Pollan Talks Plants and Food

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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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