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20 years after Hurricane Katrina, are insurers ready for a completely different kind of $100+ billion disaster?

Author

Jessica Boyd and
Daniel Bannister
August 21, 2025

Rather than ask “are we ready for another Katrina?”, the question should be: “are we ready for a completely different kind of disaster?”

So how can we avoid being blindsided by the next “predictable surprise”?

Solution

WTW Research Network

One of the biggest barriers is the failure of imagination, our tendency to overlook risks we haven’t experienced before.

Climate-driven events can impact multiple regions at once, from simultaneous wildfires to flooding across river basins.

Yet few insurers have robust modelling capability to quantify the financial and reputational impact of such disputes.

Authors

Jessica Boyd, Head of Model Research, Willis Research Network

Jessica Boyd

Head of Model Research
Willis Research Network

Daniel Bannister, Weather and Climate Risks Research Manager, Willis Research Network

Daniel Bannister

Weather and Climate Risks Research Manager
Willis Research Network

Climate change amplifies this risk by increasing the frequency, intensity, and overlap of extreme events, stretching infrastructure and recovery systems in unpredictable ways.