How to Build a Business Case for Climate Adaptation Investment in the Pacific? Regional Insights from the PRICE Framework

Introduction

On June 10, 2026, Arcadis, a global sustainable design and engineering consultancy, and Jupiter Intelligence, a provider of extreme weather risk analysis, jointly released the PRICE Adaptation Framework, designed to help organizations compare climate adaptation options, quantify investment returns, and prioritize resilience spending. The framework comes at a time when businesses in the U.S. and Europe face growing climate-related losses and insurance pressures, and the United Nations Environment Programme (UNEP) 2025 Adaptation Gap Report estimates that developing countries will need $310–365 billion annually by 2035 for climate adaptation—12 to 14 times current financial flows. For Oceania—especially Pacific Island nations—the introduction of this framework may mark a critical shift in climate finance from "risk identification" to "evidence-driven investment."

Background: Climate Vulnerability and Funding Gaps in Oceania

Pacific Island nations are among the regions at highest climate risk. Rising sea levels, intensified tropical cyclones, coral bleaching, and salinization of freshwater resources threaten their survival and development. The World Bank and Asian Development Bank have repeatedly noted that infrastructure in Pacific Island nations (ports, airports, roads, drainage systems) generally lacks resilience, while the return on adaptation investments is extremely high—UNEP data shows that every $1 invested in coastal protection can avoid approximately $14 in losses. However, due to the lack of standardized return-on-investment assessment tools, private sector adaptation investment in the Pacific region remains limited. Although Australia and New Zealand are relatively developed, their northern coastal areas, Queensland, and Auckland also face flood and storm surge risks, and their agriculture, tourism, and insurance sectors likewise require quantified adaptation solutions.

The PRICE Framework: From Risk Identification to Investment Decisions

The PRICE framework adopts a five-step decision-making approach: 1. P – Pinpoint loss drivers (identify the main causes of climate-related financial losses); 2. R – Rank adaptation options (compare different interventions side by side); 3. I – Investment case (quantify avoided losses and return on investment); 4. C – Capital strategy (align resilience decisions with financing strategies); 5. E – Execute and validate (transform adaptation plans into measurable deliverables).This framework combines Arcadis' Climate Risk Nexus and Enterprise Decision Analytics with Jupiter Intelligence's Adaptation Hub, and has been tested in real-world scenarios: a dry flood protection assessment for 100 homes in the Meyerland community of Houston, Texas, USA showed a positive return on investment for 52% of the locations; a simulation of flood wall interventions at an industrial facility in Slovenia showed an ROI of 245%. These cases demonstrate that even in mid- to high-latitude regions, the business case for adaptation investments is strong enough.

Potential Impacts on the Oceania Regional Economy

Australia and New Zealand: Priority Areas for Infrastructure Resilience Investment

Australia's Queensland, New South Wales, and Northern Territory have long been plagued by floods and bushfires, with the 2022 Queensland floods causing over AUD 4 billion in insured losses. The PRICE framework can provide governments and businesses with a standardized tool to compare the cost-effectiveness of options such as reinforcing levees, improving drainage systems, and relocating critical facilities. New Zealand's Auckland and Wellington also face threats from sea-level rise and storm surges, and the Wellington Regional Council has been evaluating the return on investment for coastal protection works. By quantifying avoided losses, the framework is expected to accelerate infrastructure resilience projects under the public-private partnership (PPP) model.

Pacific Island Countries: A New Pathway to Mobilize Development Finance

For countries such as Fiji, Papua New Guinea, Samoa, Tonga, and Solomon Islands, the shortage of adaptation funding is the most severe development bottleneck. The PRICE framework can help governments submit data-driven investment cases to international development agencies (such as the World Bank, Asian Development Bank, and Green Climate Fund) to increase the likelihood of project approval. For example, if the mangrove restoration and levee reinforcement project on Fiji's Naviti Island uses this framework, it can quantify avoided losses in fisheries, tourism revenue, and migration costs, thereby attracting sovereign wealth funds and impact investors. In addition, the 'Capital Strategy' step in the framework can help island nations design suitable green bonds or resilience bond structures to finance long-term adaptation plans.

Impact on Regional Trade: Supply Chain Resilience

The Pacific trade corridor is highly dependent on ports and shipping, and tropical cyclones and floods frequently disrupt port operations, causing delays and losses for exports such as Papua New Guinea's LNG, Fiji's tuna, and Samoa's coconut oil. The PRICE framework can be used to evaluate adaptation options for key ports such as Port Moresby, Lautoka, and Honiara—for example, upgrading dock elevation, building breakwaters, and installing backup power systems. Every dollar invested in resilience improvements may result in several dollars of avoided losses from supply chain disruptions, thereby ensuring the smooth flow of Australia-ASEAN trade and New Zealand-Pacific trade.

Regional Impact: Cooperation Opportunities Across OceaniaThe launch of the PRICE framework provides a concrete tool for regional cooperation in Oceania. The Pacific Islands Forum (PIF) and the Secretariat of the Pacific Regional Environment Programme (SPREP) can take the lead in promoting the framework and establishing a regional priority list for adaptation investment. Australia and New Zealand, as major regional powers, can align their Official Development Assistance (ODA) projects with the framework, requiring recipient countries to use standardized ROI assessments to improve aid efficiency. At the same time, regional insurance companies (such as Australia's IAG and New Zealand's Suncorp) can use the framework to repricing catastrophe risks, and even design "resilience premium discount" products to incentivize businesses to invest in adaptation measures in advance.

Furthermore, this framework helps bridge the evidence gap in the debate over the "adaptation finance gap" and "loss and damage." At COP31 (hypothetically hosted by Australia in 2026), Oceanian countries can present specific cases based on PRICE, urging developed countries to fulfill their annual commitment of $100 billion in climate finance and increase the proportion of adaptation funding.

Long-term Trends: Potential Evolution over the Next 3-10 Years

In the next three years (2026-2029), the PRICE framework may first be piloted in government infrastructure planning in Australia and New Zealand, and gradually be incorporated into the evaluation criteria for ports and transportation projects by the Asian Development Bank (ADB). In the private sector, pension funds and infrastructure investment funds will begin to require projects to disclose "climate resilience returns" using similar frameworks.

By around 2030, as data for the framework accumulates and standards improve, Pacific island nations may issue the first batch of "resilience sovereign bonds" based on the framework, with financing costs potentially lower than traditional sovereign bonds due to reduced risk. The insurance industry may give rise to new "adaptation-linked insurance products" that link preventive investments to premium discounts.

By 2035, if the framework is widely adopted, the proportion of adaptation investment in Oceania's GDP may rise from less than 0.5% to over 1.5%, significantly reducing the economic impact of disasters. However, the risk is that without political will and capacity building, the framework may become a tool for wealthy countries, leaving Pacific island nations marginalized due to data gaps and weak institutional capacity.

Conclusion

The release of the PRICE adaptation framework is not merely a corporate announcement but provides a universal business language for climate adaptation investment. For Oceania—a region characterized by high vulnerability and limited financing channels—this framework could become a key lever to unlock private capital, optimize public spending, and foster regional cooperation. Australia, New Zealand, and Pacific island nations all have the opportunity to be early adopters, turning climate risks into measurable investment opportunities. Over the next decade, those who can most effectively leverage such decision-level tools will gain economic resilience in the face of climate change.