In 1990, Nike sneakers mysteriously washed up all along the Pacific Coast. These floating shoes were the beginning of a life’s work for oceanographer Curtis Ebbesmeyer. He has spent the years since then tracking everything from sneakers to rubber ducks that float on the ocean’s surface  ? and learning the deeper workings of the seas in the process. Ebbesmeyer joins host Jeff Young to talk about his new book, “Flotsametrics and the Floating World.”