Did Gulf Oil Spill Cleanup Make Things Worse?

April 18, 2015 - In this exclusive interview, ocean explorer and National Geographic Explorer-in-Residence Bob Ballard shares his insights on the impacts of the April 20, 2010, Gulf of Mexico Deepwater Horizon oil spill as well as the cleanup efforts, particularly the use of dispersants.

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"Why Did ‘Shocking' Amounts of BP Oil Fall to the Seafloor?"