At the beginning of the 20th century, the term oceanography was merely a few decades old, and few investigations of the oceans, which cover nearly three-fourths of the planet’s surface, had taken place. This is the story of an institution that catapulted the field into the forefront of science–first as a pioneer of marine biology, then as a source of wartime environmental intelligence, and most recently as a messenger warning of humanity’s effect on nature and a source of solutions to the problem.