Mapping the ocean's hidden worlds: Robert Ballard on TED.com

Legendary ocean explorer Robert Ballard (he found Titanic) takes us on a mindbending trip to hidden worlds underwater, where he and other researchers are finding unexpected life, resources, even new mountains. He makes a case for serious exploration and mapping — Google Ocean, anyone? (Recorded February 2008 in Monterey, California. Duration: 18:19.)

Watch Robert Ballard’s talk on TED.com, where you can download it, rate it, comment on it and find other talks and performances.

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