Climate Insurability Is the New Climate Risk Signal

For years, climate risk has mainly been talked about in broad terms: temperature increases, emissions trajectories, and long-term projections. But for insurers, investors, governments, and asset owners, the most urgent question is much clearer:

Will assets continue to be insurable—and for what duration?

This is the motivation behind Riskthinking.AI’s newly released Climate Insurability Rankings, a forward-looking framework designed to quantify where physical climate risk is becoming financially significant, not just environmentally noteworthy.

From Climate Risk to Insurability Risk

Traditional climate risk assessments rely heavily on historical data—past losses, past hazards, past averages. That approach is increasingly ineffective in a warming world, where the frequency and severity of extreme events are occurring faster than historical statistics can reflect.

Insurability is where this failure first becomes apparent.

When the likelihood of significant loss exceeds a certain point, insurance premiums increase, coverage gets limited, or protection vanishes entirely. At that stage, climate risk ceases to be just a future concern and turns into an immediate economic challenge.

The Climate Insurability Rankings are based on this insight.

A Forward-Looking Approach

Instead of relying on past data, the Rankings use Riskthinking.AI’s Climate Digital Twin (CDT™) to simulate physically accurate future climate scenarios. These simulations are directly connected to real, geolocated physical assets across thousands of companies and infrastructure networks around the world.

By running large ensembles of stochastic climate simulations, the platform assesses how frequently extreme loss outcomes occur under current and near-future climate conditions. Assets are then evaluated based on whether their projected loss distributions surpass insurability thresholds over a five-year period.

In simple terms: the rankings show where assets are most likely to move from “insurable” to “financially exposed.”

What the Rankings Reveal

The results show that climate risk is not evenly distributed. Insurability stress is highly concentrated by:

• Geography, with some regions facing sharp rises in extreme heat, floods, wildfires, or storm risks.
• Sector, especially in energy, infrastructure, real assets, and industrial supply chains.
• Asset type, where long-lived, immobile assets encounter increasing exposure over time.

Importantly, many of the highest-risk exposures are not evident from national-level climate indicators. Asset-level analysis uncovers pockets of concentrated risk that are often hidden in aggregated statistics.

Why This Matters Now

Insurability serves as a key indicator of broader economic risk.

When insurance becomes unavailable or unaffordable, the effects spread outward: asset values decrease, lending conditions tighten, public balance sheets take losses, and adaptation costs increase. What starts as a climate signal quickly turns into a financial stability concern.

By framing climate risk as insurability, the Rankings translate physical climate change into a language that decision-makers understand and can act on.

A Shift in How Climate Risk Is Measured

The Climate Insurability Rankings illustrate a larger trend in climate analytics—from transparency to practical risk assessment.

As climate extremes grow more severe, the question is no longer whether climate risk exists, but where it will become unavoidable first. Insurability provides that signal.

Understanding it early is vital for resilience planning, capital allocation, and risk management in a changing climate.

Ron Dembo

Riskthinking.Ai