Continental Shelf: The Last Maritime Zone A comprehensive overview report on the status of the process of establishing the limits of the continental shelf beyond 200 M. http://www.grida.no/publications/shelf-last-zone/ Written and illustrated by the UNEP Shelf Programme and communications/cartography experts of GRID/Arendal, this report was released on 7 December 2009. The report attempts to give an updated view on the distribution of continental shelf areas worldwide and the implications this will have in the sea floor jurisdiction map while also pointing to the opportunities and challenges that this process is bringing for the international use of the ocean space.