In 2026, Manila will host the 20th International Conference on Community-Based Adaptation to Climate Change (CBA20), a gathering that prioritises the voices of practitioners over high-level officials. This choice of venue is not incidental — the Philippines sits at the frontline of climate impacts, and the conference aims to centre the lived experiences of those working directly with vulnerable communities. For a country where typhoons, heatwaves, and rising seas are not abstract projections but annual realities, the shift toward community-led adaptation is more than a conference theme — it is a practical necessity.
What makes CBA different from other climate conferences is its insistence that practitioners — community organisers, local government staff, researchers embedded in barangays — shape the programme themselves. Sessions are not designed by distant experts and delivered to passive attendees. Instead, participants co-create the agenda, sharing both successes and failures. This approach reflects a broader recognition that climate adaptation cannot be imposed from above; it must be built from the ground up, informed by the people who live with the consequences of every policy decision. For readers following Philippine environmental issues, this conference offers a concrete example of how local knowledge is being integrated into national adaptation strategies.
Three Pillars of Community-Driven Adaptation
The conference is structured around three core themes, each addressing a dimension of adaptation that top-down approaches often overlook. Urban resilience, for instance, zeroes in on informal settlement communities — the populations most exposed to flooding and heat but least served by formal infrastructure. Health investments are framed not as a separate sector but as a core adaptation response, particularly as rising temperatures expand the range of vector-borne diseases. And the knowledge nexus theme tackles a persistent blind spot in climate work: the tendency to privilege scientific data over the lived expertise of communities who have managed environmental variability for generations. A related look at how heat drives behaviour in the Philippines underscores why local knowledge matters — communities already adapt in ways that formal models may not capture.
How CBA20 Turns Participation Into Practice
The conference runs for four days, with two days of parallel sessions, a day of community and project visits in Metro Manila, and a final day of cross-cutting reflection. The parallel sessions fall into three formats — Lessons, Innovations, and Discussions — each designed for up to five speakers or panellists. Lessons sessions share what has worked and what has failed in operationalising locally led climate action. Innovations sessions showcase new applications of community-based approaches. Discussions bring together people with differing perspectives for high-interaction debate. This structure ensures that every session is a working session, not a lecture.
A new feature for CBA20 is the accountability roundtables, which address a long-standing gap in climate finance: the lack of feedback loops between funders and recipients. These roundtables allow participants to share perspectives on specific investments and projects, creating a channel for honest assessment that rarely exists in traditional grant reporting. The conference also uses a tiered pricing system, where organisations with greater resources subsidise participation for grassroots practitioners. This reflects the conference’s grounding in equity and inclusion — principles that are easy to state but difficult to operationalise. The tiered pricing is one concrete mechanism for walking that talk.
What Gets Missed in Conventional Climate Adaptation
Most climate conferences prioritise senior officials, high-level panels, and polished presentations. CBA inverts that hierarchy. A local NGO leader captured the difference: the CBA platform helps practitioners validate their issues, share their working methods, and gain confidence — many discover that their approach is unique and meaningful only after hearing from peers. This is not a minor detail. Confidence and peer validation are precursors to effective advocacy. When a community organiser returns from CBA believing that their methods matter, they are more likely to push for policy changes, demand funding, and resist being sidelined by external experts.
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| Session Type | Focus | Max Speakers | Interaction Level |
|---|---|---|---|
| Lessons | Successes and failures in locally led action | 5 | Moderate |
| Innovations | New applications of community-based approaches | 5 | Moderate |
| Discussions | Debate across differing perspectives | 5 panellists | High |
Another dimension that conventional adaptation work often misses is the integration of Indigenous and local knowledge systems with climate science. This is not about token inclusion — it is about recognising that communities have been observing and responding to environmental change for centuries. The knowledge nexus theme at CBA20 treats this integration as a serious analytical task, not a box to check. For example, traditional weather forecasting methods, seasonal calendars, and land management practices can complement satellite data and climate models, filling gaps that remote sensing cannot address. The challenge lies in creating institutional spaces where both knowledge systems are treated as equally valid — a shift that requires changes in funding, research design, and policy frameworks. The Philippines’ own struggles with environmental governance illustrate how difficult it can be to align local realities with national policy.
What You Can Do With Climate Information Services
Alongside the CBA conference, a parallel initiative — the Mapping of Climate Information Services (CIS) Data and Usage Landscape in the Philippines — offers a practical tool for anyone working in adaptation. Conducted by GIZ in partnership with the Philippines’ Climate Change Commission, the project produced a comprehensive report and a data catalog that serves as a reference for essential climate datasets. If you are a local government planner, a NGO researcher, or a community organiser, this catalog can help you identify what climate data exists, where it comes from, and how to use it.
Access the Data Catalog
The catalog consolidates datasets relevant to climate impact services, making it easier to find information on rainfall patterns, temperature trends, hazard maps, and vulnerability assessments. Instead of hunting across multiple government agencies and academic repositories, users can consult a single reference point. The report also synthesises insights from stakeholder interviews and literature reviews, offering recommendations for improving CIS delivery.
Understand the CIS Landscape
The mapping initiative identified gaps in data accessibility, interoperability, and user capacity. Even when high-quality climate data exists, it is often stored in formats that are difficult to use, hosted on platforms that are not widely known, or presented in language that assumes technical expertise. The report’s recommendations focus on making data more usable for non-specialists — a priority that aligns with the CBA conference’s emphasis on practitioner-led action.
Engage With the South-South Collaboration Platform
The project is part of a broader initiative called “Towards South-South Collaboration on Climate Information Services,” which aims to build a knowledge exchange platform for the Philippines and the Climate Vulnerable Forum. This means that the tools and lessons developed in the Philippines are designed to be shared with other climate-vulnerable countries. If you are involved in adaptation work, this platform could become a channel for exchanging data, methodologies, and best practices across borders.
Watch for Future-Phase Developments
The CIS mapping project is not a one-off study. It is intended to feed into ongoing efforts to strengthen climate information services in the Philippines. Future phases may include training programs for data users, standardisation of data formats, and integration of local knowledge into official datasets. Keeping an eye on the Climate Change Commission’s announcements and the GIZ project page will help you stay informed as these tools evolve.
Frequently Asked Questions
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Staying Grounded in Local Action
The value of conferences like CBA20 and tools like the CIS data catalog ultimately depends on whether they change what happens on the ground. The Philippines has no shortage of climate plans, policies, and pledges. What it needs is sustained, well-funded, community-led implementation — the kind that emerges when practitioners have the data they need, the confidence to act, and the institutional support to scale their work. The CBA conference series has spent two decades building that foundation. The challenge now is to ensure that the insights generated in Manila in 2026 translate into real resilience for the communities that need it most. If this was useful, you might also want to read how local environmental challenges compare across Philippine regions.
Sources
Pollution’s unequal impact on Filipino communities — Explores how environmental hazards affect different populations, complementing the equity focus of community-based adaptation.
Filipino heat fuels tree hunger in 2024 — Examines how rising temperatures drive behaviour change, illustrating the kind of local knowledge that adaptation efforts must account for.
CBA20: Local solutions inspiring global action. International Institute for Environment and Development, 2025.
Mapping of Climate Information Services Data and Usage Landscape in the Philippines. GIZ and Climate Change Commission, 2024.
