Climate adaptation is no longer a niche conversation. The urgency is real, and the institutional attention is harder to ignore than it’s ever been.
A major new study released last month by the Centre for Impact Investing and Practices, in partnership with Temasek and Invesco, surveyed 165 Asian funders representing more than US$1 trillion in AUM – and found climate adaptation and resilience ranked as their single top impact theme. Asia is warming twice as fast as the global average, 3.7 billion of its people have been affected by climate events since 2000, and the region bears roughly 75% of the world’s adaptation financing gap. Globally, economic damages from natural disasters have grown roughly fivefold as a share of GDP since the 1970s. In 2025 alone: US$224 billion in losses, more than 17,000 fatalities.
Yet current adaptation finance flows sit at US$26-50 billion per year against needs of US$310-365 billion annually by 2035 – with less than 11% coming from the private sector. At COP30 last November, framed as the “COP of implementation and adaptation,” governments committed to tripling adaptation finance to US$120 billion per year by 2030. Still less than half of what’s needed.
So how do we make adaptation and resilience more legible to investors globally?
1. Stop treating all adaptation capital as the same thing
The field is still in its early innings. Susan Hunt Stevens, Co-founder and CEO of Tessi, a technology company helping homeowners rebuild more resiliently after disasters, draws a useful analogy:
“It reminds me of my first GreenBiz corporate sustainability conference in 2011. Early leaders like Levi’s, Unilever and Walmart were doing amazing work, but the rooms were small, everyone knew each other and most companies were still deciding what, if anything, they would do. What differs in these small rooms right now is the urgency. Natural disasters and drought are just so physically visible and financially devastating. There isn’t much argument about the ‘why’ in these rooms. It’s a lot more about, ‘How are we going to fund this?’”
That question – how are we going to fund this? – demands precision. The adaptation investment conversation has a fundamental framing problem: it treats a wide set of asset classes, risk profiles, and return expectations as if they were a single category. They are not, and failing to distinguish between them could impede capital flows. As Laurie Schoeman, Chief Investment and Impact Officer at Partners for the Common Good and former senior climate resilience advisor to U.S. President Biden, put it directly:
“Every type of capital has a return that needs to be in place. Equity investors want 11 to 18 percent. CRA banks are willing to do five to six percent. Bond markets can do three to four percent.”
Adaptation and resilience solutions vary widely: a parametric insurance product triggered by heat thresholds may need a strategic partnership with an insurance company to get into the market; a community-scale flood barrier financed through a municipal bond; an early-stage startup building AI-powered drought forecasting that needs VC funding to scale, a mid-market industrial company reduce climate risk to its supply chain may need a bank loan. These are all adaptation investments. But they have different investor bases, return expectations, risk profiles and time horizons. If we aggregate them all under the same roof, we aren’t telling a very indicative story.
Virginie Morgon, founder and managing partner of Ardabelle Capital, a European private equity firm focused on value chain transformation, makes the distinction concrete:
“Some areas are highly suited to private equity: industrial technologies, water efficiency, waste equipment, resilient agriculture, circular economy platforms, energy efficiency, building renovation ecosystems, or supply chain digitalization. Other adaptation areas are less naturally suited to traditional private equity return expectations. Large-scale protective infrastructure, long-duration resilience assets or public adaptation systems may require blended finance, infrastructure capital or public-private structures.”
The capital stack taxonomy – one that maps specific adaptation asset classes to the investor types and return profiles best suited to them, rather than pitching adaptation as a homogenous category – is critical here.
2. Build the enabling systems, not just the assets
Research from the World Resources Institute makes a powerful macro case for adaptation by showing that well-designed projects can generate double‑digit annual returns and multiple streams of economic and social value at scale. Against this backdrop, what could be a more enabling system for adaptation finance to flow? Let’s look at three efforts that can help.
First, we need better defined repayment mechanisms. For example, for adaptation-focused debt instruments and bond issuances, the foundational question – who actually pays this back? varies depending on the structure. General obligation bonds place the repayment burden on municipal taxpayers broadly. Revenue bonds tie repayment to a specific income stream, such as utility fees or toll revenues. But not all adaptation assets will generate that kind of direct cash flow. A flood barrier protects property values but charges nobody a fee for doing so. A coastal wetland restoration sequesters carbon, buffers storm surge, and improves water quality – all public goods with diffuse beneficiaries and no obvious payer necessarily. The International Chamber of Commerce has noted that the field needs to develop structured vehicles where repayment is tied to avoided losses or user-beneficiary payments, turning resilience into a cash flow rather than simply a moral imperative.
Second, proof of performance. Mitigation has a universal unit of account: a tonne of CO2 reduced or removed is a standardized, tradeable, verifiable outcome. Adaptation has no equivalent. An OECD measurement study found that assessing adaptation effectiveness – establishing a causal link between an intervention and a reduction in climate vulnerability – is reported as a major challenge by 80% of responding countries. That measurement gap directly constrains capital. Investors cannot underwrite what they cannot verify, and they cannot verify outcomes that have no agreed definition. This is beginning to change. The Adaptation and Resilience Investors Collaborative, a consortium of ten development finance institutions, published a framework in 2024 for measuring adaptation impact in ways that are investor-relevant and can be aggregated across portfolios.
Third, reduced bureaucratic friction. Even well-designed adaptation projects, with clear repayment structures and verified performance frameworks, can be slowed by permitting delays and zoning complexity. This is not a minor operational inconvenience – it is a structural drag on investment returns that fundamentally changes the risk calculus. In the EU, permitting delays for energy infrastructure projects regularly exceed two years and in some cases stretch to four, double the maximum duration permitted under the Renewable Energy Directive. In fact, the complexity and duration of industrial permitting is considered a major obstacle to investment by 83% of companies operating in Europe. These delays cost time and create uncertainty that makes capital unwilling to commit. Predictability of process is a prerequisite for investment at scale.
Field building around adaptation and resilience is critical, and Morgon pushes back on the idea that enabling systems are a cost center rather than an investment: “One of the biggest misconceptions around adaptation and resilience investing is that these are necessarily low-return or concessionary strategies. In reality, resilience has increasing economic value because volatility itself has become a major cost driver. The return profile we look for is characterized by reduced earnings volatility, stronger pricing power, improved supply security, regulatory resilience, and greater durability of cash flows.”
3. Scale is not optional – it’s the investment thesis
Often, adaptation investment requires project-level thinking: one building, one neighborhood, one community at a time. But if the global demand for resilience investment exceeds one trillion dollars annually, we’ll need to upgrade our thinking beyond project-level.
Adaptation investments emerging today can generate a halo effect – returns that extend well beyond the immediate project to reshape the value of surrounding assets and communities. Scale isn’t just a funding ambition; it’s how the returns actually materialize. Of course, easier said than done. Reaching meaningful size and reach involves tradeoffs – standardization can erode local fit, and aggregation can obscure community-specific needs. This is especially true for adaptation solutions, which tend to need localized-formatting – e.g. needs can differ from neighborhood to neighborhood in some cases.
Schoeman, who has worked extensively on community-scale infrastructure in New York, Los Angeles, and Miami, uses Brooklyn’s DUMBO area as a case study: “What that flood mitigation barrier did was not only protect the basin that is DUMBO – it created a halo effect that extended out to that entire community, that entire district, raising the appraised value of everything in it. It’s like the High Line effect.”
Consider the elevation of roadways in Miami Beach, which protects not just the roads but the entire asset base beneath them. Or California utilities now spending roughly $9 billion annually on wildfire mitigation – an investment that could look like the most prudent risk management decision of the decade.
Scale also creates an obligation: ensuring resilience doesn’t become a privilege. Communities can’t be resilient if households can’t find, afford, or connect to solutions. The investment thesis is about building community-scale infrastructure that raises the floor of resilience for everyone – and generates the returns that funders can actually underwrite.
4. Resilience is the underpin, not the headline
And the best adaptation investments may not even lead with adaptation at all. Decades spent building the case around renewable energy investments did not pitch “mitigation” but cost savings and stability.
Stevens, who has spent fifteen years working at the intersection of behavior change and sustainability, has seen this pattern clearly: “Fifteen years in sustainability has taught me that the best climate solutions are those adopted for conventional reasons – price advantages, quality improvements, ease of use, time savings – but also offer a sustainability benefit. Resilience is no different. In our work, we need to make home repairs faster, easier and more cost effective. When we do that, it opens up the opportunity to drive choices to build back better.”
Take precision agriculture financing. Farms and investors are less likely to talk about adaptation funding needs and more so just about how equity financing isn’t available as a tool for most farmers, and deals are too small and too off-market for investors to access at scale. Fix that structural problem for both farmers and investors, and you can embed the incentives to invest in soil health and yield resilience into the structure of the investment itself. Resilience isn’t the headline. It’s what the structure unlocks.
Or consider redesigning buildings. Heat pumps are, in the conventional framing, a decarbonization technology. But installing the equipment on rooftops and out of flood-prone basements – decentralizing heating and cooling systems – can also be seen as an adaptation intervention. The mitigation story gets the funding. The adaptation benefit accompanies it.
The field doesn’t need to hide what it’s doing. But it does need to speak the language of the investors it’s trying to reach.
5. The adaptation vs. mitigation divide is the wrong fight
For too long, adaptation and mitigation have been positioned as competitors. Every dollar that goes to a flood barrier is a dollar that doesn’t go to a solar panel. But this framing is counterproductive.
Morgon makes the point from where she invests: “At Ardabelle, we increasingly see resilience, decarbonization and sovereignty as three dimensions of the same industrial transformation. At the portfolio level, the distinction between adaptation and decarbonization is becoming less meaningful in practice. A company that reduces energy intensity, localizes critical suppliers, develops circular material flows, or redesigns products for lower resource dependency is simultaneously reducing emissions, reducing volatility, and increasing resilience.”
Schoeman also advocates for a more nuanced framing: “We have more in common than we don’t, and we need to have a legitimate discussion about how we can leverage each other’s strengths. I see mitigation as a long-term play and adaptation as the immediate short-term imperative. Mitigation is about reducing the cause of climate change, and resilience is about adapting to the consequences. It has to live together. We can’t make this a false choice.”
The examples are everywhere. For instance, grid modernization supports renewable energy integration while increasing resilience to extreme weather. Building electrification can reduce emissions while improving structural resilience and removing equipment from flood zones. And nature-based solutions sequester carbon while buffering coastal communities from storm surge.
It’s natural to put mitigation and adaptation at odds – one seeks to reduce and remove the thing that created the mess we’re in while the other is accepting the fact that the mess is too great to rely on reducing and removing along. However, the more interesting question is what synergies exist between them, and how to design investments that enable both.
The work that remains
The signals are real, the capital is beginning to move, and perhaps most importantly the urgency is impossible to dispute. But the moment is finite – and the investment story that has carried adaptation this far won’t carry it the rest of the way.
The field has made the case that adaptation matters. The harder, more specific case is how it gets funded at scale: with the right instruments, the right returns, the right enabling systems, and real integration with the broader climate finance agenda.
The window is open. The question is what gets built while it is.
