Deep Blue Home: An Intimate Ecology of Our Wild Ocean

At the center of Deep Blue Home—a penetrating exploration of the ocean as single vast current and of the creatures dependent on it—is Whitty’s description of the three-dimensional ocean river, far more powerful than the Nile or the Amazon, encircling the globe. It’s a watery force connected to the earth’s climate control and so to the eventual fate of the human race.

Whitty’s thirty-year career as a documentary filmmaker and diver has given her sustained access to the scientists dedicated ...