Rising cost of insuring against climate crisis will have wider knock-on effects for UK economy

Rising Climate Insurance Costs Threaten UK Economy

Rising cost of insuring against climate - As climate-related risks intensify, the rising cost of insuring against them is reshaping the UK’s economic landscape. Extreme weather events, from prolonged heatwaves to catastrophic floods, are driving up insurance premiums, placing pressure on households and businesses alike. This trend is not merely a concern for the insurance sector but has far-reaching implications across industries and financial systems. Two recent analyses—one by TheCityUK and Marsh, and another from economist Swati Dhingra of the Bank of England’s Monetary Policy Committee—highlight how the growing expense of climate insurance could disrupt economic stability and amplify financial strain on the nation.

Insurance Challenges in a Changing Climate

Insurance firms are facing mounting difficulties in assessing and pricing risks due to the unpredictability of weather patterns. Traditional actuarial models, which rely on historical data to predict loss probabilities, are now challenged by the increased frequency of extreme events. TheCityUK’s report notes that this volatility is creating “protection gaps,” leaving many inadequately prepared for climate-related damages. As insurers adjust their risk models, the cost of coverage is likely to rise further, impacting everything from property insurance to business continuity plans.

“Climate hazards are no longer rare anomalies but recurring threats that strain existing frameworks for risk assessment,”

said TheCityUK. This shift forces companies to either raise premiums or reduce coverage, potentially limiting access to insurance for vulnerable populations. The report warns that such adjustments could destabilize financial markets, as businesses and consumers brace for higher outlays on climate risks.

Linking Climate Risks to Inflation

The economic impact of climate events extends beyond insurance. Swati Dhingra’s analysis reveals how climate disruptions influence UK inflation, with global supply chains bearing the brunt of weather-related delays. For instance, extreme heat in West Africa led to a sharp rise in cocoa prices, contributing to a 1% increase in chocolate costs in 2025. Dhingra emphasized that these effects are compounded by the country’s reliance on climate-vulnerable imports, which make up 13% of food supplies in 2024.

Weather extremes are also disrupting agricultural labor, with over 216 billion hours lost to heat stress in 2024 alone. This labor shortage raises production costs, which are passed on to consumers. The Energy and Climate Intelligence Unit (ECIU) found that staples like rice and bananas, sourced from climate-sensitive regions, are increasingly affected by these shifts. These factors combine to create a complex inflationary environment, where rising insurance costs and supply chain shocks intersect.

Addressing the rising cost of insuring against climate risks requires coordinated policy action. TheCityUK and Dhingra both stress that current measures may not be sufficient to mitigate the financial strain. While higher insurance premiums directly impact budgets, they also indirectly affect investment decisions, as businesses reassess their risk exposure. This creates a feedback loop: increased costs discourage climate adaptation efforts, which in turn heighten the probability of future disasters.

Long-Term Economic Consequences

Over time, the rising cost of insuring against climate risks could reshape the UK’s economic priorities. As firms allocate more resources to risk management, capital may shift away from growth-oriented investments. This could slow innovation and reduce competitiveness in sectors reliant on long-term planning. Additionally, households may cut back on discretionary spending to cover rising insurance expenses, further dampening consumer demand and economic activity.

Experts warn that without proactive intervention, the financial burden of climate risks could become unsustainable. TheCityUK suggests that government-backed insurance schemes or subsidies may be necessary to support businesses and individuals in adapting to the new normal. Meanwhile, the Bank of England’s Monetary Policy Committee must balance inflation control with the need to fund climate resilience initiatives, ensuring that rising insurance costs do not trigger a broader economic slowdown.