National Oceanic and Atmospheric Administration, CC BY-NC-ND Increasingly, the world’s oceans are telling us our climate system may be changing faster and more dramatically than expected. These new insights are made using a vast global network of instruments – from drifting floats and moored buoys to research vessels and underwater gliders – that quietly and continuously feed data to scientists. Known as the Global Ocean Observing System (GOOS), it provides the fine-grained data that scientists