Photo Credit: shutterstock.com/Benny Marty
This is the third installment in a blog series from CA FWD and Insurance for Good. CA FWD and Insurance for Good have partnered to develop an actionable guidebook that outlines replicable funding and financing strategies for risk reduction and resilience. This blog summarizes the key themes coming from recent discussions by the expert workgroup convened through the partnership; special thanks to Matt Posner at The Resiliency Company for this guest contribution. Read the first blog post here; read the second blog post here.
By Matt Posner
There is no shortage of conversation about how to finance climate adaptation and resilience. Insurance markets are under pressure. Catastrophe bonds are back in fashion. Building codes, standards, and data tools continue to evolve. Private equity and venture capital are often invoked as the solution waiting in the wings. All of these tools matter. None of them, on their own, can solve the problem at hand.
If we are serious about resilience at real scale, not pilots, not boutique demonstrations, not philanthropic experiments, but about protecting communities, infrastructure, and regional economies over decades, then the municipal bond market is not just part of the story. It is the backbone of the story.
The reason is straightforward: resilience is expensive, capital-intensive, and produces returns that are overwhelmingly public in nature. Resilient infrastructure stabilizes tax bases, reduces long-term losses, prevents displacement, keeps hospitals and utilities online, and sustains local economic activity. These benefits are enormous. They are also diffuse, long-dated, and poorly captured by traditional private investment models. Real estate- and infrastructure-type returns alone are not going to make the resilience train run.
That means private capital cannot lead this transition on its own. Philanthropy, while essential, is not designed to shoulder multi-billion-dollar balance-sheet risk over 30 or 40 years. And episodic federal programs, even ambitious ones, are structurally incapable of underwriting the full scale of adaptation America requires. Whether we like it or not, this work must flow through the U.S. municipal bond market.
That is actually good news. The municipal market is deep, liquid, and purpose-built for long-lived public assets. Over the last two years, combining new issuance and refundings, the market pushed over one trillion dollars into US projects, programs and just every-day service delivery. There is no other capital system in the United States that offers that scale of low-cost, long-term, tax-advantaged financing for public goods.
The capital engine already exists.
The challenge is that the municipal market is optimized for flexibility and continuity, not transformation. It is highly fragmented, with tens of thousands of issuers, and relies overwhelmingly on general obligation and broad revenue bonds. These structures are intentionally loose. They avoid narrow ring-fencing, bespoke revenue pledges, and constrained use-of-proceeds because those features introduce legal complexity, administrative burden, and forecasting risk. From the market’s perspective, deviation is cost, not innovation.
This is why green, blue, or resilience labels have not delivered the breakthrough many hoped for. They do not meaningfully reduce borrowing costs, and they add friction in a market that prizes standardization. Talk to traders, underwriters, bond counsel, or the largest municipal bond labelers and you will hear the same answer: labels do not move the market.
The same realism applies to credit ratings. Today, rating agencies do not meaningfully reward resilience investment, nor do they penalize inaction. Climate reports exist, but they are not determinative in a way that changes issuer behavior. If history is any guide, including the period before 2008, ratings systems react after structural failures, not before them. Waiting for ratings leadership is a losing strategy.
That means resilience financing has to be built deliberately, from the inside of public finance, rather than waiting for the system to evolve on its own.
If even ten percent of annual municipal issuance were intentionally aligned with resilience, that represents roughly $50 billion a year. That level of issuance would fundamentally change project feasibility. It would lower financing costs, signal long-term commitment, and unlock complementary capital. This is shared risk creating shared value.
Critically, this requires governments to lead differently. Local governments are already the ultimate impact investors. Their core function is the delivery of essential services. They are inherently social and environmental investors. But they cannot continue to approach resilience through general funds alone, hire the same advisors for the same playbook, or treat adaptation as an add-on.
What is required is a more holistic effort that informs the entire lifecycle of public finance: risk-informed budgeting, capital improvement plans that explicitly quantify physical risk, reserve policies that acknowledge climate exposure, and financing structures that align with long-term economic development rather than short-term recovery.
This also means leaning into existing public infrastructure rather than inventing parallel systems. Housing finance agencies, state bond banks, resilience districts, tax-increment-like tools, revolving funds, and utility authorities already exist. They can be repositioned and aligned around resilience if the intent is clear.
Do not reinvent the wheel, reposition it.
At The Resiliency Company, and through the Resilient America effort, this is precisely the work underway. The focus is on institutionalizing resilience within local government fiscal decision-making so that it becomes a core governing function rather than a special project. Tools such as risk-informed reserve analysis, developed in partnership with public finance practitioners, help governments quantify physical risk on their balance sheets and connect that risk to real financing decisions, whether through traditional bonds, insurance, catastrophe instruments, or other mechanisms.
Equally important is the demand side of the market. The municipal buyer base is vast and heterogeneous, with different motivations ranging from tax-exempt income to fiduciary duty to impact alignment. Resilience needs to be legible to these investors. That requires clearer taxonomies, repeatable structures, and a narrative that frames resilience not as cost avoidance alone, but as economic development. Communities that invest in resilience protect their labor force, housing stock, healthcare systems, and commercial corridors. That is growth preservation and, increasingly, growth creation.
Finally, resilience is one of the few issues where broad alignment is possible. Community banks, insurers, utilities, health systems, employers, and local governments all have a stake in outcomes. By engaging local economic actors as co-beneficiaries, and co-investors, governments can move from isolated public spending to shared solutions.
If resilience finance is defined only by philanthropy, boutique innovation, or episodic federal programs, it will remain marginal. If it is rooted in the municipal bond market, it becomes systemic. That is the path to scale.
