In 2024 and 2025, Camber Collective partnered with Gavi, the Vaccine Alliance, and the Asian Infrastructure Investment Bank (AIIB) to develop and publish a first-of-its-kind methodology for quantifying the climate adaptation value of health investments, particularly immunization. This effort culminated in the release of the report Protecting Our Future, launched publicly at COP30.

Health is often one of the first systems to be affected by climate shocks, but until now, it has rarely been counted as part of the global climate finance story. Less than 0.5% of climate finance is currently directed toward health, despite mounting evidence that stronger health systems and preventive tools like vaccines play a critical role in helping vulnerable communities adapt to a changing climate.

This project sought to address that disconnect by building a framework that could credibly estimate the adaptation share of health investments, whether or not they had originally been labeled as “climate projects.” In collaboration with technical experts from across the World Bank, ADB, WHO, and academic institutions, Camber developed a tiered methodology that evaluates investments based on their climate-health relevance, sectoral patterns, and country vulnerability. The approach was applied across more than $42 billion in investments from Gavi, the World Bank, ADB, and AIIB to demonstrate both the feasibility and strategic value of adaptation quantification in health portfolios.

In doing so, this research helps to reshape the way we value health interventions in a climate-stressed world, not only by surfacing the hidden adaptation impact of existing investments, but also by laying the foundation for more intentional, climate-smart health spending moving forward.

Through this work, we also saw the value of building tools that can work across institutions, helping funders, governments, and global health actors better align climate and health objectives using shared methods and evidence.

As a firm, Camber is excited to continue building in this space, working alongside funders and partners to apply and evolve this methodology, and to deepen the case for health as a pillar of climate resilience. We look forward to supporting organizations across sectors who are eager to better understand and articulate the adaptation value of their health investments, especially in low- and middle-income settings most affected by the climate crisis.

Climate change is more than just an environmental concern; it’s an amplifier of existing societal structures and disparities.

— Dr. Chidiebere X. Ikejemba and Ella Geisner. Read more here