The First Industry to Fully Believe in Climate Change Is the One That Prices It
Long before parliaments legislate, insurance actuaries reprice. Global insured losses from natural catastrophes have exceeded $100 billion a year with regularity that reinsurers like Swiss Re and Munich Re now describe as the new baseline, and the industry's response is reshaping where people can affordably live.
The mechanism is brutally direct. Where modelled risk rises — wildfire perimeters, flood plains, cyclone coasts — premiums climb until coverage becomes unaffordable, or insurers simply withdraw. State-backed schemes of last resort then absorb the risk, concentrating it on public balance sheets.
The second-order effects reach everyone: mortgages require insurance, so uninsurable gradually means unmortgageable, and property values follow. A 'climate signal' is entering real estate through the insurance channel faster than through any regulation.
The industry's data is also one of the best public records of physical climate risk — reinsurers publish catastrophe analyses with a candour political documents rarely manage, because their solvency depends on being right.
The takeaway is uncomfortable and clarifying: markets are not waiting for the climate debate to resolve. The repricing has started; the policy question left is who carries the risk that private capital declines — and whether adaptation spending arrives before the affordability gap becomes a crisis of its own.
