Aon is partnering with Fathom to augment the flood risk capabilities of its Climate Risk Monitor tool.

As part of the collaboration, high-resolution data will bolster the tool’s functionality across flash flooding, river flooding, coastal flooding and rising sea levels. The solution can now assess US, UK and Japan flood risk at a resolution of 10 square meters, and 30 square meters for other regions.

This new insight aims to provide forward projections of flood risk across a range of emissions scenarios, with the goal of helping re/insurers to understand the insurability of the flood peril, as well as supporting due diligence, and disclosure and regulatory requirements.

In addition to flood risk, Climate Risk Monitor can also model the prevalence of drought, extreme rainfall, extreme heat, freeze, tropical cyclone and wildfire under different climate change scenarios, providing diagnostic reports both on individual asset and portfolio impacts, as well as geographical visualisations of changing risk.

Liz Henderson, global head of Climate Risk Advisory for Aon, said: “The dynamics of the flood peril are particularly sensitive to climate change, which raises growing concerns around global insurability and protection gaps, highlighted by the significant flood events of 2024. Our collaboration with Fathom will help to further enhance the value Climate Risk Monitor brings to clients, not just around physical risk management but also shaping better decisions on human capital in the areas of health, resource allocation and investment.”

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