Multi-hazards and risks are getting more and more important all over the world. Hereby, many different institutions and scientific disciplines are involved. A variety of multi-hazard and risk approaches are available. Following a brief review of the key terms in that field of disaster risk reduction, the main multi-hazard risk approach is presented. Hereby, the importance of interactions in terms of compound and cascading events is explored. The demand to move from classical risk management to disaster-based risk management is explored. Finally, challenging issues such as extreme events, emerging risks, communication in social media and artificial intelligence are put into perspective of multi-hazard risks
