Investigating the oceans - Robert Ballard

View full lesson: http://ed.ted.com/lessons/on-exploring-the-oceans-robert-ballard Ocean explorer Robert Ballard takes us on a mindbending trip to hidden worlds underwater, where he and other researchers are finding unexpected life, resources, and even new mountains. He makes a case for serious exploration and mapping. Google Ocean, anyone? Talk by Robert Ballard. Learn more about your ad choices. Visit megaphone.fm/adchoices