In a new study spanning coastal areas of the Northern Hemisphere, a coordinated research network led by MSc Emilia Röhr, Assoc. Prof. Christoffer Boström from Åbo Akademi University and Prof. Marianne Holmer from University of Southern Denmark explored the magnitude of organic carbon stocks stored and sequestered by eelgrass (Zostera marina) meadows—the most abundant seagrass species in temperate waters.