After the BP oil spill in the summer of 2010 left more than 200 million gallons of oil in the Gulf of Mexico, almost 2 million gallons of other chemicals were dumped into the gulf in an attempt to mitigate the effects of the oil. The National Geographic Society’s explorer-in-residence, Sylvia Earle, explains how this attempted chemical cleanup failed to improve the situation at all.

Recorded June 2010; Posted September 2010