The defining challenge is no longer simply pricing climate risk. It is coordinating action across institutions whose incentives are only partially aligned.
Climate change is commonly described as the largest market failure in history. Greenhouse gas emissions impose costs that are not reflected in market prices, allowing economic actors to shift part of the consequences of their decisions onto others and onto future generations. From this perspective, the solution appears relatively straightforward: improve prices. Carbon taxes, emissions trading systems, climate disclosures, and better risk measurement all seek to ensure that prices more accurately reflect climate-related costs and risks.
Over the past decade, climate-related risks have become substantially better understood. Scientific uncertainty has declined. Financial regulators increasingly require climate stress testing. Banks, insurers, investors, and rating agencies routinely assess climate exposures. Accounting standard setters have issued guidance on incorporating climate risks into financial reporting, while sustainability disclosure frameworks continue to expand. Markets may still underprice certain risks, but it is becoming increasingly difficult to argue that climate change is simply being ignored.
Yet despite this growing recognition, investment in resilience continues to lag behind what almost every major study suggests is economically justified. Adaptation financing remains well below estimated needs. Infrastructure remains vulnerable to increasingly severe weather events. Insurance markets are withdrawing from regions exposed to growing physical risks, while governments continue to assume larger disaster liabilities.
The persistence of this gap suggests that the central challenge is no longer simply informational. Rather, it is institutional. The question is not simply whether climate risks are understood. It is whether existing institutions are capable of acting collectively upon that knowledge.
Increasingly, the evidence suggests that this capacity remains limited.
Climate risk is becoming a coordination problem.
This distinction matters because pricing problems and coordination problems are fundamentally different. Pricing problems arise when markets fail to incorporate relevant information into economic decisions. Coordination problems arise when individual actors possess sufficient information but remain unable—or insufficiently incentivized—to produce collectively efficient outcomes. Participants may all recognize what should be done while still failing to achieve it.
Fisheries provide a familiar illustration. Individual fishers have strong incentives to maximize their own catch, yet if every participant behaves rationally, the shared resource can become depleted, leaving everyone worse off. The challenge is not that participants misunderstand the problem. It is that individually rational decisions fail to produce collectively efficient outcomes. Climate resilience increasingly exhibits similar characteristics.
Consider flood protection. A new seawall may reduce insurance claims, preserve property values, protect mortgage collateral, maintain municipal tax revenues, reduce emergency response costs, safeguard transportation networks, and lower future fiscal expenditures for disaster recovery. The investment produces value across the economy.
Yet no single institution captures that value in its entirety.
Insurers benefit through lower claims but only for policies they currently underwrite. Banks benefit through more resilient collateral, although often over horizons longer than the duration of individual loans. Property owners enjoy reduced losses but may not possess sufficient capital to finance large-scale protective infrastructure. Local governments receive economic benefits but face competing fiscal priorities and political constraints. National governments may ultimately save substantial disaster expenditures while lacking mechanisms to coordinate investments undertaken by municipalities, utilities, insurers, and private investors.
Everyone benefits.
No one captures enough of the benefit to justify financing the investment alone.
This is the defining characteristic of a coordination problem.
The same logic extends beyond flood protection. Electrical grids become more resilient only if utilities, regulators, investors, equipment manufacturers, and governments make complementary investments. Coastal resilience depends upon infrastructure planning, insurance markets, land-use regulation, emergency management, mortgage finance, and public investment operating together. The transition to a lower-carbon economy similarly requires coordinated action across governments, corporations, financial institutions, households, and capital markets. The value of each participant’s investment depends partly upon decisions made by others.
Modern financial systems, however, were not designed to solve these problems.
Financial institutions exist to optimize individual balance sheets rather than collective resilience. Banks allocate credit according to expected repayment and regulatory capital requirements. Insurers price and diversify risk within constraints imposed by available capital. Asset managers pursue returns on behalf of investors. Governments balance competing fiscal demands across election cycles. Each institution performs precisely the function it was designed to perform.
The difficulty arises because climate risk does not respect institutional boundaries.
A flood does not remain an insurance problem.
It becomes a banking problem when collateral values deteriorate.
It becomes a municipal finance problem when infrastructure is damaged.
It becomes a public finance problem when disaster relief is required.
It becomes a macroeconomic problem when production is disrupted.
Losses migrate across balance sheets regardless of how responsibilities are divided between institutions.
The financial system has evolved sophisticated mechanisms for managing this migration after losses occur. Insurance transfers risk from households to insurers. Reinsurance distributes catastrophe exposure internationally. Capital markets absorb asset repricing. Governments provide emergency assistance and act as insurers of last resort when private capacity becomes constrained. Modern finance possesses an elaborate architecture for reallocating realized losses.
The architecture for coordinating prevention is considerably weaker.
This asymmetry is striking. We possess increasingly sophisticated institutions for distributing the costs of disasters after they occur, yet comparatively few mechanisms for coordinating investments that reduce those disasters beforehand. Financial innovation has largely focused on allocating realized risk rather than organizing collective action to prevent it.
This institutional asymmetry helps explain why climate losses continue to migrate through financial markets toward public balance sheets. As private insurance capacity contracts in high-risk regions, governments increasingly expand residual insurance mechanisms, disaster assistance programs, infrastructure reconstruction, and fiscal support. Public balance sheets become the destination of last resort not because governments necessarily manage risk more efficiently, but because they remain the only institutions capable of absorbing residual losses that no private actor can retain.
The question, however, is why prevention remains persistently underfinanced despite widespread recognition that reducing future losses is economically efficient.
The answer lies in the nature of the value that prevention creates.
Most financial assets generate value through future cash flows. Factories produce goods. Office buildings generate rental income. Infrastructure collects user fees. Investors can estimate, discount, contract upon, and finance these future revenues because they are expected to accrue to identifiable owners.
Prevention creates value differently.
A flood barrier does not primarily create new income. It prevents future destruction.
A wildfire mitigation program does not produce revenue. It reduces future losses.
Improved building standards do not generate cash flows. They lower the probability and severity of future damage.
Their value lies in events that never occur.
These avoided losses are economically real. Society is unquestionably wealthier when catastrophes do not happen. Businesses remain operational. Public infrastructure survives. Insurance claims are lower. Tax revenues remain intact. Economic disruption is reduced.
The difficulty is that these benefits are inherently collective.
They emerge across many institutions, many balance sheets, and often many decades. They cannot easily be attributed to a single investor, collateralized as a financial asset, or embedded within conventional contractual arrangements. Existing accounting frameworks recognize realized assets and liabilities far more readily than hypothetical losses that successful prevention ensures never materialize. Financial contracts similarly evolved around observable cash flows rather than counterfactual outcomes.
This is why climate prevention remains systematically underfinanced.
The principal obstacle is not simply insufficient concern about climate risk, nor merely imperfect information. It is that existing financial architecture is optimized to recognize, allocate, and finance realized economic activity rather than avoided economic loss.
The financial system therefore possesses remarkably efficient mechanisms for financing recovery while lacking equally sophisticated mechanisms for financing prevention.
Seen in this light, the persistence of climate losses becomes easier to understand. Physical and transition risks continue migrating through insurers, reinsurers, banks, capital markets, residual insurance mechanisms, and ultimately sovereign balance sheets because the institutions capable of absorbing realized losses are far more developed than those capable of coordinating avoided ones.
The question is therefore no longer simply how markets price climate risk.
It is whether financial architecture can evolve to coordinate investment in value that exists primarily because catastrophe never occurs.
