This report has three main parts. The first section reviews the latest findings in climate change science and its effect on extreme weather events. The second outlines what catastrophe modelling is and how it came to be developed. The third section examines whether and how catastrophes models account for climate change through a series of case studies provided by a range of model providers, including AIR, RMS and EQECAT. The appendices provide detail on the terminology used to describe levels of confidence and likelihood (Appendix 1) and the limitations of climate models (Appendix 2).