Nature may be the next big infrastructure asset class. COP30 signals a shift as MDBs build the tools to turn ecosystems into investable, measurable public assets.
At COP30 in Belém, the Asian Infrastructure Investment Bank and its partners released a report that directly tackles one of the biggest unanswered questions in global finance: how to turn the natural systems that support the economy into investable, infrastructure-grade assets.
The idea is straightforward. Forests, wetlands, watersheds and coastal ecosystems already deliver core infrastructure services such as flood protection, water purification, heat mitigation and carbon storage. The question is why the financial system does not treat them that way. Eric Berglof, chief economist at the AIIB is blunt about the need for a new approach. Without standardized contracting, clear regulatory frameworks and measurable performance outcomes, nature-based investments remain one-off experiments. With them, they can become an asset class.The momentum for action is real. “This is the first time in COP’s thirty-year history that bioeconomy has a dedicated day, reflecting its growing momentum as Brazil prioritizes forest conservation and the value of nature,” said Luana Maia, global Brazil lead at NatureFinance, one of the partners. She explained that the key question as nature rises on financial agendas, becomes “who will pay for this natural capital?”in Belem. For the first time, MDBs are attempting to classify, track and standardize nature-positive finance across institutions, signalling that nature is no longer being treated as an environmental afterthought but as an economic system in its own right.For Erik Berglof, the issue is not conceptual but practical and he told me, “We need to invest in nature. We need to manage nature. We need to make nature more resilient. And we can take the experience from infrastructure finance and adapt it.” His argument is that nature finance has been held back by the absence of exactly the tools that made renewable energy and other infrastructure sectors investable.sets out how nature and high-integrity ecosystems can be structured, valued and contracted in ways that make them investable. The framing is deliberately pragmatic. Governments already know how to plan infrastructure pipelines. Multilateral development banks know how to de-risk early transactions, and investors know how to evaluate long-term public-private partnerships. The report argues that nature can be treated similarly when ecological performance is measured and contracted over time, with guarantees, insurance and biodiversity credits used to create investable structures.For AIIB, this reframing grew out of experience. Berglof points to a wetland project in Mongolia that began as a small nature-based solution initiative. When the bank applied a natural capital lens and valued the ecosystem services involved, the government expanded its ambition from a narrow intervention to a landscape-scale project. Once the economic benefits became visible in financial terms, the project looked like infrastructure rather than conservation. In Colombia, the Terrasos Habitat Bank is demonstrating how restoration can be delivered through a sequenced model of construction, operation and financing that mirrors traditional infrastructure PPPs. These examples are early, but they signal a broader shift in thinking: nature assets can be governed, contracted and financed in ways that allow private capital to participate. The bank is also working with commercial lenders in China to value nature assets using a new taxonomy. These projects build on China’s eco-compensation system and combine it with carbon buyers and corporate beneficiaries to create diversified revenue streams that can be integrated into loan structures. Advances in remote sensing and biodiversity monitoring have made these valuations more precise and more bankable., reflect where markets are heading: treating improvements in natural capital as intangible assets that can be contractually recognized and monitored. This is not yet mainstream, but it highlights the direction of travel.Henry Paulson highlighted the macroeconomic stakes in the report saying , “At this critical crossroads, for essential action to happen at scale, governments must lead the way and set the rules that drive investment towards nature protection and restoration and away from damage and destruction,” he said. “Nature is not a luxury. It’s not free. It’s our support system. And it’s disappearing before our eyes.” Jin Liqun, president of AIIB, put the case bluntly in the official release adding, “MDBs have a critical role in realizing this shift by embedding nature into planning, finance and governance at scale.” Turning that principle into a market requires solving the valuation problem because nature does not fit neatly into traditional accounting frameworks. Cash flows are diffuse, benefits cross borders and jurisdictions, and ecological performance is hard to measure. Financial institutions are now trying to close the gap. The MDB launch of the Common Principles for Nature Finance Tracking and a Common Nature Finance Taxonomy, for example, create the beginnings of a market-wide classification system for nature-positive investment. The AIIB report goes further by proposing standardized valuation methodologies, PPP contract templates, and performance metrics. The point is that such approaches can scale bankability, which is critical to accelerating capital flow to nature protection and regeneration. The emerging argument is that ecosystems can be made investable when three ingredients come together: clear policy signals, standardized contracting and credible monitoring systems. MDBs are even examining how natural capital accounting, eco-compensation mechanisms and resilience metrics might eventually influence sovereign risk analysis. Paulson’s framing captures the urgency and political dimension of the moment when he says, “We must act, not someday, not incrementally. Now.”For companies, the rise of nature as infrastructure is a balance-sheet issue. The natural systems that underpin operations, from water, flood protection, soil, temperature stability, pollination and raw materials, are degrading, and the financial consequences are already showing up in higher input costs, rising insurance premiums, supply-chain disruption and tightening regulation.into catastrophe models; and banks in emerging markets are piloting nature-linked lending that could influence borrowing costs. Commodity producers are facing increasing scrutiny on nature-positive supply chains. Treating nature as infrastructure gives corporates a practical framework: if ecosystems can reduce risk or deliver essential services more cheaply than engineered alternatives, those benefits can now be modeled, valued, insured and contracted. The implication is straightforward. Companies that understand and invest in the natural systems they rely on will face fewer disruptions and lower long-term costs. Those that ignore the shift may find nature risk becoming a material financial exposure, as well as a growing constraint on access to capital.For MDBs, the work ahead is architectural, developing standard contracts, valuation methods, monitoring systems, regulatory clarity and credible pipelines. For investors, the question is whether those elements can give nature the risk-return characteristics of an established infrastructure class. For governments, the challenge is to embed natural capital into budgets, plans and credit frameworks, and to ensure land rights and benefits flow to Indigenous Peoples and local communities, as the report explicitly stresses. For companies, if nature becomes an asset class, ecosystems and their services can no longer be treated as externalities. They become financial exposures, credit determinants, operational risks, and strategic assets - which changes how they operate, how they borrow, how they get insured, and how they compete. COP30 may be remembered as the year nature finance stopped being a niche conversation and started to resemble an emerging asset class. Whether it achieves scale will depend on whether the architecture MDBs are now designing can translate ecosystems into the kind of investable, long-term public assets that global markets already understand.
AIIB COP30 Biodiversity Natural Capital Public Private Partnerships Climate Finance Ecosystem Services Supply Chain
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