Every institution supports prevention. Almost none are responsible for financing it.
Climate change has created an unusual financial problem. Almost every institution benefits when climate risks are reduced, yet very few institutions have the authority, incentives, accounting treatment, or mandate to finance prevention in proportion to the value it creates. The result is not simply underinvestment. It is a mandate gap in which responsibility for climate prevention falls between institutions.
This helps explain why adaptation and resilience remain chronically underfinanced despite widespread agreement that preventing losses is often economically preferable to recovering from them. Although governments, development institutions, green banks, insurers, and specialized funds support particular forms of resilience, no major class of financial institution is broadly responsible for aggregating the distributed value of avoided losses and converting it into investable cash flows.
The problem is therefore not merely a global shortage of capital. It is the absence of institutions explicitly designed to identify, recognize, and invest in the value created when future climate losses are reduced.
The Prevention Gap Is an Institutional Problem
The prevention gap is often described as a funding gap. That framing is incomplete because it implies that supplying additional capital would, by itself, solve the problem. Capital may be available, but institutional responsibility remains scarce.
Every major financial institution operates within a defined purpose. Banks generally finance projects supported by contractual repayment streams. Insurers price, transfer, and compensate risk, while sometimes encouraging loss reduction through underwriting, inspections, premium incentives, and risk-engineering services. Capital markets allocate claims on future earnings and cash flows. Governments provide public goods and absorb risks that households and markets cannot retain.
Accounting systems can recognize expected losses, contingent liabilities, impairments, and changes in asset values. They rarely recognize an avoided future loss as a separately owned asset capable of supporting investment. Even when a prevention project is expected to generate substantial economic value, that value may remain absent from the balance sheets and contractual arrangements needed to finance the project.
None of these limitations means that institutions are indifferent to prevention. The difficulty is that their mandates are generally not structured to aggregate and finance the full value of losses prevented across numerous beneficiaries. Prevention can therefore be economically valuable while remaining institutionally unassigned.
Prevention Creates Shared Benefits Without a Single Owner
Consider a coastal flood barrier expected to reduce the present value of future regional losses by $10 billion. Homeowners preserve property wealth, businesses avoid interruption, banks experience fewer mortgage and commercial-loan defaults, insurers pay fewer claims, municipalities protect their tax bases, and national governments reduce future emergency and reconstruction expenditures. Capital markets may also benefit because the properties, businesses, loans, and municipal securities exposed to the region remain more valuable than they otherwise would have been.
Those benefits are real, but they are distributed across many balance sheets. No institution captures the entire $10 billion reduction in expected loss. Each beneficiary realizes only a fraction of the project’s total value, and some benefits may never appear as identifiable revenue or accounting gains.
An insurer may benefit from lower claims but hesitate to finance an asset that will protect policyholders insured by its competitors. A bank may expect fewer defaults but lack a mandate to build public flood infrastructure. A municipality may preserve tax revenue while lacking the borrowing capacity to finance the project alone. A national government may ultimately bear part of the disaster cost, but the benefit may occur decades after the administration making the initial expenditure has left office.
Each institution may therefore prefer that the project be constructed while remaining unwilling or unable to bear its full cost. Chronic underinvestment emerges not necessarily because institutions are behaving irrationally, but because they are responding rationally to mandates that allow them to capture or recognize only part of prevention’s overall value.
Institutional Mandates Are Narrow by Design
Financial institutions are intentionally specialized. Banks pursue risk-adjusted lending returns. Insurers manage underwriting exposure and capital adequacy. Asset managers seek portfolio performance within investment guidelines. Pension funds must meet long-term obligations while complying with fiduciary duties. Central banks safeguard monetary and financial stability but generally do not finance individual resilience projects. Finance ministries manage public resources, debt, and fiscal risk, while infrastructure and emergency-management agencies operate within appropriations and statutory responsibilities.
This specialization is one of modern finance’s greatest strengths. Clearly defined mandates allow institutions to develop expertise, control risk, and remain accountable for particular functions. The problem arises when an economically valuable activity crosses the boundaries separating those functions.
Climate prevention does precisely that. A wildfire mitigation program may simultaneously reduce insured losses, protect utility infrastructure, preserve municipal revenue, prevent mortgage defaults, reduce healthcare expenditures, and lower the probability of emergency public spending. Yet the insurer, utility, municipality, bank, healthcare system, and national government each evaluates the investment through a different mandate, budget, time horizon, and accounting framework.
No individual institution can automatically treat the combined social value as its own investment return. The greater the number of beneficiaries, the more economically valuable prevention may become, but the more difficult it can be for any one participant to justify paying for it.
Support for Prevention Is Not the Same as Responsibility for It
Many institutions publicly support climate resilience. Insurers encourage stronger building codes. Banks recognize that physical climate risk can impair collateral. Asset managers ask companies to disclose climate exposure. Central banks and regulators evaluate threats to financial stability. Governments fund disaster mitigation, infrastructure improvements, and emergency preparedness.
These activities matter, but support does not create an enforceable financing responsibility. An institution can recognize that prevention is socially desirable without possessing the mandate, budget, or fiduciary authority to invest directly in producing it. It can also benefit from a project without being required to contribute to its cost.
This distinction helps explain why broad agreement does not reliably produce coordinated investment. Each institution can acknowledge the importance of prevention while reasonably concluding that another institution is better positioned to pay. Insurers may view infrastructure as a government responsibility. Governments may expect property owners or insurers to internalize the risk. Banks may consider physical protection outside the scope of lending. Asset managers may encourage portfolio companies to adapt without possessing the authority to finance regional public goods themselves.
Responsibility consequently circulates across institutions without settling on any one of them. Prevention is everyone’s interest but rarely anyone’s complete mandate.
Existing Institutions Provide Partial Solutions
The mandate gap is not absolute. Governments finance flood defenses, wildfire mitigation, water systems, and other protective infrastructure. Development banks support adaptation projects. Green banks mobilize private capital for investments with public benefits. Insurers sometimes invest in risk reduction or reward policyholders for protective measures. Utilities finance resilience when regulators allow costs to be recovered through rates.
These mechanisms demonstrate that prevention can be financed. They also reveal the limitations of the existing architecture. Many programs depend on public appropriations, political priorities, grants, subsidized credit, or the capacity of one institution to absorb costs that benefit many others. Projects can therefore remain unfunded even when their total expected benefits exceed their costs.
Existing mechanisms also tend to finance the physical intervention without fully contracting around the distribution of value it creates. A government may build a flood barrier while insurers, lenders, businesses, and property owners receive substantial benefits without contributing in proportion to their avoided losses. The project may still be worthwhile, but its financing does not necessarily reflect its complete economic value.
The missing function is therefore not simply the ability to spend money on resilience. It is the ability to identify prevention’s beneficiaries, estimate their respective benefits, coordinate their participation, and convert part of the resulting avoided loss into reliable payment commitments.
The Missing Institutional Function
Climate finance discussions often assume that existing institutions simply require better incentives. A more fundamental possibility deserves consideration: the institutional function required to finance prevention may not yet exist at sufficient scale.
Modern financial systems have developed institutions for financing production, consumption, innovation, housing, infrastructure, and recovery after losses occur. Public agencies and development institutions also finance selected forms of mitigation and resilience. What remains underdeveloped is an institution capable of aggregating the distributed value created when future losses are reduced.
Such an institution would need to perform several functions that currently sit in different parts of the financial system. It would need to identify exposed beneficiaries, estimate changes in expected loss, distinguish private benefits from public benefits, coordinate institutions with different mandates, and translate part of the resulting value into contractual cash flows. It would also need to manage counterfactual uncertainty, verify physical performance, allocate residual risk, and hold investments over time horizons long enough for prevention to demonstrate its value.
This function would not eliminate the role of governments, insurers, banks, utilities, or institutional investors. It would connect them. Rather than requiring one institution to finance the entire intervention, it could allow multiple beneficiaries to contribute according to the losses they expect to avoid and the mandates under which they are permitted to participate.
Mandates Determine Which Value Becomes Financeable
Financial markets do not invest in every activity that creates economic value. They invest where value can be recognized, claimed, contracted, and assigned to an institution authorized to hold it. Institutional mandates therefore help determine which forms of value become financeable and which remain outside the market.
A factory can finance expansion because additional production is expected to generate revenue. A utility can finance infrastructure when regulated rates provide cost recovery. A government can issue debt because future taxes support repayment. By contrast, a prevention project may reduce billions of dollars in expected losses without generating a conventional revenue stream or placing the resulting value on any one balance sheet.
The failure to finance prevention does not imply that the underlying value is unreal. It means that financial institutions lack the mandate and contractual architecture required to convert that value into a recognizable claim. Until that architecture exists, avoided losses can remain economically significant but financially unusable.
Expanding Mandates Is Not Enough
One possible response is to broaden the mandates of existing institutions. Regulators could permit utilities to recover certain resilience costs through rates. Insurers could receive clearer recognition for investments that reduce future claims. Public pension funds and sovereign investors could be given explicit authority to consider long-term systemic risk reduction. Governments could create dedicated resilience authorities capable of coordinating beneficiaries across jurisdictions and sectors.
These reforms could materially expand prevention investment. They would not, however, eliminate the underlying coordination problem. Broader mandates do not automatically determine who should pay, how benefits should be measured, or how uncertainty should be allocated. Nor do they ensure that institutions with different time horizons and fiduciary obligations can enter the same transaction.
Mandate reform must therefore be accompanied by institutional architecture. Prevention requires mechanisms that can aggregate beneficiaries, establish payment obligations, verify performance, and govern disagreements over what would have happened without the intervention. Otherwise, broader authority may produce additional programs without creating a scalable financial system for avoided loss.
From Institutional Vacuum to Financial Architecture
Climate prevention currently falls between institutions because its benefits cross the boundaries that modern financial mandates were designed to preserve. Insurers benefit but are not infrastructure agencies. Banks benefit but cannot own every public good protecting their borrowers. Governments bear residual losses but face fiscal and political constraints. Investors may be willing to provide capital, but only when a credible payment stream exists.
The resulting underinvestment is not simply a market failure, a government failure, or an information failure. It is an architectural failure. Prevention creates value across institutions, while responsibility for producing that value remains fragmented among them.
Closing the prevention gap will therefore require more than persuading institutions that resilience is important. It will require assigning responsibility, expanding permissible mandates where appropriate, and creating structures capable of converting distributed avoided losses into contractual financial value.
The central question is no longer whether climate prevention benefits insurers, banks, governments, businesses, and households. It clearly does. The question is whether the financial system can develop an institutional home for producing those benefits before the losses occur.
