The Weekly: U.S. Data Shows Resilience Investments Pay Back $1.86 Per Dollar
The economic losses from disasters that are not covered by insurance continue to grow, but resilience projects are generating measurable positive returns.
The economic losses from disasters that are not covered by insurance continue to grow, but resilience projects are generating measurable positive returns.
New Swiss Re research pegs the global natural catastrophe protection gap, the portion of economic losses from disasters not covered by insurance, at $424 billion in 2025, which is a 7% jump from 2024.
That’s the figure in the headlines, but two other findings in the report tell a more nuanced story: Insurance coverage is growing alongside risk, and U.S. resilience projects are generating measurable positive returns.
Finding #1: Insurance Coverage Is Growing at a Rate in Line With Catastrophe Exposure
Swiss Re’s resilience index, which tracks the share of global catastrophe exposure covered by insurance, rose from 25% to 27% over the past decade. In some markets (like parts of Asia and Germany), coverage is outpacing risk. But the worldwide catastrophe protection gap is still widening in absolute terms, simply because there are more structures in harm’s way. Economic growth continues to add new assets to hazard-exposed areas, and reconstruction costs have increased. When, as the report puts it, “population continues to concentrate in catastrophe-exposed states,” more homes and infrastructure—and more value—are ending up in places that flood and burn. But insurance coverage is growing to meet this increase in construction. According to Swiss Re, “the proportion of protection need covered by insurance was broadly unchanged vs 2024.”
Finding #2: U.S. Resilience Projects Are Generating Nearly $2 in Benefits for Every $1 Spent
A Benefit-Cost Ratio (BCR) compares a project’s expected financial benefits to its expected costs. For resilience projects, the primary benefit is reduced disaster losses. Swiss Re reviewed U.S. projects approved between 2010 and 2022 that disclosed expected benefit-cost ratios, drawing from U.S. Army Corps of Engineers feasibility reports and state and municipal analyses, representing roughly $9 billion in project value.
Every project anticipated positive net returns. The median BCR was 1.86: nearly $2 in anticipated future benefits for every $1 invested. The highest, from a flood-risk-management levee project in New Mexico, was 9.63. Swiss Re notes that these figures likely underrepresent the true returns, since most project appraisals don’t include factors such as life-safety benefits, broader economic effects, and ecosystem services provided by green infrastructure.
This Data Is Making a Strong Case for Resilience
If insurance coverage is broadly keeping pace with exposure growth, expanding coverage alone isn’t the answer. Swiss Re’s research points to a clear prescription: “One way to improve resilience across regions is to reduce expected losses through targeted adaptation projects, which can lower physical vulnerability, support insurability and improve the economics of risk transfer,” it said.
For insurers, municipal officials, and private investors, reports like this one can help justify a shift in how capital is allocated. When a global reinsurer like Swiss Re publishes benefit-cost data showing that every reviewed U.S. resilience project yielded positive net returns, the industry gets another credible, citable foundation for directing capital toward adaptation. The exposure accumulation story embedded in the $424 billion figure sharpens that case further: As it becomes clearer that the protection gap is growing because of where and how we are building, the economic rationale for targeted resilience investment becomes harder to dismiss.

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Floods and geohazards, like earthquakes, account for the majority of published research on the value of risk-reduction investments, such as home hardening, green infrastructure, and sea walls, while wildfire resilience remains comparatively understudied.
Source: ScienceDirect
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