The course provides in-depth knowledge of how planning and development work can contribute to reducing the vulnerability of society, with emphasis on sustainability and risk management. The course provides an orientation on various types of extreme events, such as natural disasters, technical accidents, economic crises, diseases/pandemics, social unrest and conflicts. For these, both causes and consequences are highlighted. Particular attention is paid to risks related to climate change. A point of departure is the UN's goals in Agenda 2030. Nevertheless, the focus is on analyzing potential risks from a systems perspective and preventing future accidents. The latter can be done through planning and promoting sustainable development. In more extreme cases, it can be about reconstruction and efforts to create more resilient societal structures, for example after large natural disasters or large-scale armed conflicts. Scientific studies and relevant planning tools are presented continuously during the course. Examples are taken from both local and national (i.e, mainly Swedish) contexts as well as international contexts, such as developing countries in the Global South.