But to truly understand the remarkable ways in which human emissions are altering Earth's climate system, scientists need to find out what is going in the world's oceans. That was difficult until the past decade, when better technology like that of Argo, a network of 3,200 robotic floats, allowed them to get temperature and salinity data across the globe at depths of 6,500 feet below the sea surface. Read More at www.news.vice.com