A representative list of GRIs, open to global co-operation and of interest to new partners will be created. A report from the Group on the co-ordination of GRIs is expected. A progress report was presented in 2015.15 Among such infrastructures, ocean and sea floor observatories, including oceanography fleets of research vessels and polar research facilities (both for the Arctic and Antarctic) were specifically mentioned as examples in the broad categories of research infrastructures of global relevance. Following on from the publication of the “Report on road mapping of large infrastructures” (2008) and the “Report on establishing large international research infrastructures: Issues and options” (2010), the OECD Global Science Forum (GSF) published a “Report on International Distributed Research Infrastructures (IDRIS)” in 2013.16 This report can serve as a reference document that may be used when new initiatives to share infrastructure are being prepared. It identifies challenges, options and solutions when it comes to setting up new initiatives in which distributed infrastructures have to be integrated for better research.