Videos

Following are videos you may find helpful in supplementing your curriculum:


 * Captain Charles Moore on the seas of plastic: A talk about garbage in our oceans **

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 * Peter Ward on Earth's mass extinctions **

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 * Nalini Nadkarni on conserving the canopy **

media type="custom" key="5163455" Richard Preston on the giant trees (redwood rain forest) **

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 * Eric Sanderson pictures New York -- before the city **

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