Although most drifting buoys start their journeys with a crude send-off—usually heaved into the ocean from the stern of a moving ship—NOAA oceanographer Rick Lumpkin describes today's drifter as "a high-tech message in a bottle." Insignificant on their own, but an army of drifters 1,000 strong patrols the world's oceans and records key data for climate monitoring and research.
