This Stockholm round-table has identified a wide range of knowledge gaps but has also found agreement on a number of recommendations, providing a common agenda for action and a way ahead. Through joint international efforts in science and policy, we can develop new knowledge, new methods, models and instruments that will help us reduce existing vulnerabilities and stand more ready to cope with the potentially devastating impacts of extreme space weather. Any national measures that are taken over the coming years will need to consider the wider context of European and Euro-Atlantic cooperation.