Sylvia Earle — Her Deepness (Aug 8, 2013)

Sylvia Earle has done something no one else has — walked solo on the bottom of the sea, under a quarter mile of water. She tells what she saw — and what she has learned — about the giant, living system that is the ocean. And, she explains why seeing a shark is a sign for hope. See more at www.onbeing.org/program/her-deepness-oceanographer-sylvia-earle/4673