The financial management of catastrophe risks presents an important public policy challenge for governments across the world. Climate change, the increasing reliance on digital technologies and socioeconomic trends such as globalisation and urbanisation are affecting the frequency and severity of the floods, cyclones, cyber-attacks and infectious disease outbreaks that produce significant financial, economic and social costs each year. This report examines the role of catastrophe risk insurance programmes (i.e. loss-sharing arrangements within the insurance sector and often in partnership with governments) in broadening the availability of affordable insurance coverage for catastrophe risks and limiting risks to public finances.