Over the last decades and especially in the new millennium, global society is increasingly facing new risks and challenges on a global scale, demanding global solutions. With their articles on global risks, the authors have contributed to a topic that suffers from severe under-specification. Their contributions can be summoned up under three headings: Identification and Assessment, Normative Reflections and Alternative Modes of Governance. Each of the assembled articles shows, from very different academic perspectives, how international actors - states as well as regional and international organisations - deal with global risks that in today's globalised world affect not only one state or region, but the international community as a whole.