The Centre for Marine Environmental Sciences (MARUM), based at the University of Bremen, aims to achieve a better understanding of key processes in the marine environment in order to provide information for sustainable use of the ocean. The main research themes are: Ocean and Climate, Geosphere-Biosphere Interactions and Seafloor Dynamics. MARUM studies past and present environmental changes from the coast to the deep sea at a global scale; processes at and below the seafloor are a special research focus. Other major goals of MARUM include the training of young scientists, developing and providing technology and infrastructure for marine research in cooperation with industry, and communicating scientific topics to the general public including special programs for schools. Through MARUM, the University of Bremen closely collaborates with other institutes and organisations.