AFIR-ERM: A data science approach to climate change risk assessment applied to pluvial flood occurrences for the United States and Canada
There is mounting pressure on (re)insurers to quantify the impacts of climate change, notably on the frequency and severity of claims due to weather events such as flooding. This is however a very challenging task for (re)insurers as it requires modeling at the scale of a portfolio and at a high enough spatial resolution to incorporate local climate change effects.
In this webinar, we introduce a data science approach to climate change risk assessment of pluvial flooding for insurance portfolios over Canada and the United States. The underlying flood occurrence model quantifies the financial impacts of short-term precipitation dynamics under present and future climate conditions by leveraging statistical, machine learning, and climate model data. The model is designed for applications that do not require street-level precision, as is often the case for scenario and trend analyses.
Our analyses show that climate change and urbanization will typically increase losses across Canada and the United States, while impacts remain strongly heterogeneous across regions. Portfolio applications highlight the importance for (re)insurers to differentiate between future changes in hazard and exposure, as the latter may magnify or attenuate the impacts of climate change on losses.
This webinar is based on a paper published in the ASTIN Bulletin.
