'Paradise Lost' How To Help Our Oceans Before It's Too Late

In the past 50 years, Earth's oceans have been depleted and acidified to alarming degrees. Sylvia Earle, a longtime marine scientist, explains her plan to save at least a small part of them -- along with our planet.
Manta rays off the coast of the Maldives

Manta rays off the coast of the Maldives

Foto: Tobias Friedrich
About Sylvia Earle
Foto: Kip Evans
Foto: Kip Evans
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