A strengthening El Niño is exposing vulnerabilities across food, water, energy and infrastructure systems. ELTIFs and evergreen private-market funds cannot alter the weather, but their long-duration capital could help finance the resilience infrastructure needed to absorb increasingly disruptive climate events, while giving investors access to assets whose economics may become more important as physical risks rise.
El Niño is normally discussed as a meteorological phenomenon. For investors, however, the developing 2026 event is becoming a portfolio question. The World Meteorological Organization said in July that a strong El Niño was developing and expected to strengthen through the August-October period. The organisation warned of above-normal temperatures across much of the world and significant shifts in rainfall, with drought, flooding and wildfire risks increasing in different regions. NOAA subsequently put the probability of a very strong event during the Northern Hemisphere autumn and winter at more than 90%.
The consequences extend well beyond agriculture. Water availability can affect power generation and industrial production; drought can disrupt transport routes; extreme heat can increase electricity demand; flooding can damage physical infrastructure; and disruptions to agricultural production can feed through into food prices and inflation.
For institutional investors, that creates a problem that traditional portfolio construction does not easily solve. The challenge is not simply finding assets that perform during an El Niño. It is financing the infrastructure and businesses that make economies less vulnerable to climate shocks in the first place. That is where the expanding universe of ELTIFs and evergreen private-market funds becomes interesting.
From climate risk to adaptation capital
The European Long-Term Investment Fund was created with precisely the kind of investment horizon that climate adaptation requires. The European Securities and Markets Authority describes ELTIFs as vehicles intended to channel investment into companies and infrastructure projects for the long term and increase non-bank financing of the real economy.
The significance of ELTIF 2.0 is that the structure has become more relevant to a broader investor base, while retaining a focus on long-term and relatively illiquid assets. That matters because climate resilience is often an inherently long-duration investment. A water-treatment plant, flood defence system, electricity grid, battery-storage facility or resilient transport network may require substantial upfront capital before generating returns over many years. The investment case may be based partly on contracted revenues, regulated returns or infrastructure usage, but the economic value also lies in reducing the probability and severity of future disruption.
Evergreen funds offer another route into the same broad opportunity. Unlike traditional closed-end private-market funds, evergreen vehicles remain open and can continue raising capital and making investments over an extended period. That means they can potentially maintain exposure to infrastructure, private credit, real estate and other real assets without the fixed ten-year lifecycle associated with many conventional private-equity structures.
The combination is potentially powerful as ELTIFs provide a regulated European framework for long-term private assets, while evergreen structures provide a mechanism for maintaining capital and investment exposure over time. Neither, however, is a climate solution by itself.
The infrastructure problem
The investment opportunity begins with the physical systems most exposed to climate volatility. Water infrastructure is an obvious example. Drought can reduce agricultural output and put pressure on municipal supplies, while extreme rainfall can overwhelm drainage and wastewater systems.
Energy presents a similar challenge. Heat increases demand for cooling just as drought can affect hydropower and water availability can constrain thermal generation. At the same time, electricity networks need greater capacity as economies electrify and data-centre demand grows. Al Chu, portfolio manager covering natural resources at Man Group, recently argued that the current El Niño is arriving at a particularly vulnerable moment: “El Niño lands on an already-stretched power grid, an already-tight liquefied natural gas market, and a global food chain with little slack left.”
The point is important for private-market investors. The opportunity is not necessarily to make a short-term directional bet on commodities. It is to identify the infrastructure bottlenecks created when several systems become stressed simultaneously. Man’s analysis argues that the interaction between heat, power, water and food supply could create a more significant shock than any individual weather event. That could favour investment in assets that increase system resilience: transmission networks, distributed generation, energy storage, water infrastructure, efficient irrigation, resilient logistics and technologies that reduce resource consumption.
The adaptation financing gap
The investment industry has increasingly recognised the distinction between mitigation and adaptation. Mitigation seeks to reduce emissions. Adaptation seeks to make economies more capable of coping with the physical consequences of climate change. El Niño makes the latter particularly visible.
Invesco has argued that adaptation investment can produce what it calls a “triple dividend“: avoiding economic losses, generating financial gains and producing wider social and environmental benefits. Paul Jackson, Global Head of Asset Allocation Research at Invesco, and Gerald Evelyn, Client Portfolio Manager at Invesco Global Debt, wrote that sufficient capital and technical assistance could enable developing countries to build climate-resilient infrastructure and sustainable systems.
Their argument is particularly relevant to private markets because many adaptation projects sit in the space between public infrastructure and commercial investment. Projects may have clear economic benefits but struggle to attract private capital because of construction risk, political risk, uncertain revenues or the long period before cash flows mature. That is where blended finance can become important.
Public or development capital can absorb some of the early risk, allowing private investors to participate in projects that might otherwise fall outside conventional risk-return parameters. For ELTIF managers, this potentially creates a broader investment universe spanning infrastructure debt, private credit, renewable energy, water systems, real assets and companies developing adaptation technologies.
Evergreen capital and the time-horizon problem
There is another reason evergreen funds may have a role. Climate adaptation is fundamentally at odds with short investment horizons.
Professor Nicola Ranger of the London School of Economics has identified the mismatch between the economic life of infrastructure and the investment horizons of its owners as one of the major barriers to effective adaptation. In a recent discussion hosted by Man Group, she noted that global infrastructure investment is around $2.9trn a year and argued that the priority should be ensuring this capital produces infrastructure that is resilient to future climate risks.
Her observation exposes a structural problem. An infrastructure asset may be expected to operate for 30, 50 or even 100 years, but an investor may expect to sell it after only a few years. That can make adaptation expenditure difficult to justify. A resilience upgrade may have little effect on near-term earnings but could materially reduce the probability of losses decades later.
Evergreen vehicles potentially provide a better alignment between asset life and capital life. As the fund does not have a predetermined liquidation date, the manager can theoretically hold infrastructure through multiple weather cycles and investment phases. That may allow greater emphasis on operational resilience rather than simply preparing an asset for sale. But this is not an argument for abandoning liquidity discipline.
Evergreen funds investing in illiquid assets still need to meet redemption requests. The structure therefore requires careful management of liquidity, valuation, portfolio construction and dealing terms. The appeal of evergreen capital is its potential durability, not an absence of liquidity risk.
Resilience is becoming an investment theme
The growing institutional focus on infrastructure reinforces the argument. Invesco’s 2026 Global Sovereign Asset Management Study found that infrastructure had become the fastest-growing alternative asset class among sovereign wealth funds over the previous five years. Infrastructure represented 9% of sovereign wealth fund assets in 2026, compared with 4.9% in 2022.
The underlying investment thesis is broader than climate adaptation. Energy security, digitalisation, electrification, data centres and economic competitiveness are all driving infrastructure expenditure. However, many of those same investments can increase resilience. Allianz Global Investors has identified climate adaptation, resilience, energy, digitalisation and water management as themes shaping infrastructure investment in 2026. The firm argues that infrastructure’s role is expanding beyond traditional physical assets into a technology-enabled ecosystem supporting economic and social resilience.
Matt Christensen, AllianzGI’s global head of sustainable and impact investing, has described well-functioning and resilient infrastructure as “the backbone of a strong economy“. That is an important shift in the investment narrative. Infrastructure is no longer simply about owning assets with predictable cash flows. Increasingly, investors are being asked to consider whether those assets remain economically useful under changing physical conditions.
What could ELTIF managers actually invest in?
The potential opportunity set is considerably wider than renewable energy.
- Water infrastructure could include treatment facilities, desalination, leakage reduction and storage.
- Energy investment could encompass electricity transmission, grid reinforcement, battery storage and distributed generation.
- Agricultural resilience could involve irrigation, controlled-environment agriculture, agricultural technology and supply-chain infrastructure.
- Transport investment could include ports, logistics networks and infrastructure designed to operate under greater weather volatility.
- Digital infrastructure also has a role. Data centres are becoming increasingly dependent on reliable electricity and access to water for cooling, making location and resource efficiency important investment considerations.
There is also a growing universe of private companies developing technologies designed to reduce exposure to physical climate risks. For an ELTIF or evergreen manager, these assets can potentially combine a climate-resilience thesis with conventional investment considerations such as contracted revenues, inflation linkage, barriers to entry and long-term demand. That is important because the strongest investment argument should not depend upon an ESG label. The question should instead be whether an asset provides an economically valuable service that becomes more valuable as climate volatility increases.
The portfolio argument
There is a second potential benefit. El Niño is a global phenomenon with geographically different consequences. A drought in one region can occur alongside flooding in another. Agricultural commodities can be affected differently from energy markets, while infrastructure assets may respond according to their location and revenue structure.
Professor Ranger has warned that investors need to consider these correlated effects across portfolios rather than examining physical climate risk asset by asset.That makes diversification particularly important. An evergreen infrastructure portfolio containing assets across geographies and sectors may have a greater ability to absorb a regional climate shock than a concentrated portfolio.
But diversification does not eliminate climate risk. If a single weather event affects several economically connected assets, correlations can increase precisely when investors expect diversification to work. This is why climate scenario analysis and asset-level resilience assessment need to sit alongside the fund structure.
A new role for private markets?
The most interesting implication may therefore be institutional rather than retail. Private capital cannot replace governments in financing climate adaptation. Nor should every resilience project be forced into a commercial investment structure.
Nevertheless, the scale of the challenge means governments alone are unlikely to provide all the capital required. ELTIFs and evergreen funds can potentially act as part of the bridge between public policy and private capital. The European Commission and European fund regulators designed ELTIFs to channel long-term capital into the real economy. The current climate environment gives that objective an additional dimension: ensuring that the infrastructure receiving private capital remains productive and resilient as physical conditions change.
For asset managers, this creates a potential convergence between several previously separate investment themes, private markets, infrastructure, climate adaptation, energy security, inflation protection and long-duration capital. The opportunity is not to claim that an ELTIF can hedge an El Niño. It cannot. The opportunity is to use long duration investment structures to finance the assets that make economies less vulnerable to the next one.
The test will be investment discipline
That distinction will matter as the market develops. There is a danger that “climate resilience” becomes another label attached to infrastructure investments that would have been made anyway. Managers will need to demonstrate additionality: what physical risk is being addressed, how the investment changes the resilience of the underlying asset or economy, and whether investors are being adequately compensated for the risks involved.
Valuation will matter too. Infrastructure assets that become strategically important can attract substantial competition, potentially reducing the returns available to investors. And evergreen structures introduce their own challenges around liquidity and valuation.
The strongest managers are therefore unlikely to be those simply launching products with climate terminology. They will be the managers capable of combining engineering and climate-risk analysis with rigorous underwriting, portfolio construction and long-term stewardship. That is ultimately where El Niño could leave its mark on the private-markets industry. A weather event cannot be prevented by an investment fund. But capital can determine whether a water system is resilient, whether an electricity grid has sufficient capacity, whether a port can withstand disruption and whether an agricultural supply chain can continue operating after a climate shock.
ELTIFs and evergreen funds provide two mechanisms through which that capital can remain invested for longer. As El Niño intensifies through the second half of 2026, the investment question is therefore becoming less about predicting where the next weather shock will occur and more about identifying which assets and businesses are structurally better equipped to withstand it. For long-term investors, that could prove to be the more durable investment opportunity.