Oceans created, shaped, and sustain not just human life, but all life on Earth, and perhaps beyond it. Deep Wateris a reckoning with humankind's complex relationship with these oceans. In this thrilling work -- a blend of history, science, nature, and environmental writing -- acclaimed author James Bradley plunges into the unknown to explore the deepest recesses of the natural world, guiding readers through the atomic creation of the oceans to the wonders contained within, like the schools of fish who use electromagnetic sensing to migrate across the globe; describing how human populations have circumnavigated the world by boat; and interrogating the environmental catastrophe already impacting our lives. Deep Watercelebrates the ocean's glories and the extraordinary efforts of the scientists and researchers currently unlocking its secrets. Offering vital new ways of understanding humanity's place on our planet, Bradley shows that the oceans might yet save us all.