Ivor van Heerden

Jul. 03, 2009

The Disappearing Mississippi Delta

Rising sea levels and not enough sediment replenishment may make much of the Mississippi Delta 'drown' by the year 2100, according to a new study.

river, climate, sea level, water, sediment, louisiana, katrina, levee

Sep. 05, 2008

Levees and Hurricanes

How did cities along the coast weather Hurricane Gustav -- and can New Orleans residents can rest any easier in the face of coming storms?

levees, hurricanes, new orleans, civil enginnering, katrina


Michael Pollan Talks Plants and Food

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Cetacean Science


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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