Dredging, global warming, coral bleaching, commercial fishing, and the health of deep-sea life are just a few of the topics in a discussion of the status of knowledge about the earth’s oceans, which cover two-thirds of the planet.


  • John McGowan Research professor of oceanography, Scripps Institute of Oceanography
  • Sylvia Earle Oceanographer
  • Tundi Agardy Conservation International
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