20th International Conference on Community-Based Adaptation to Climate Change (CBA 20)

Since 2005, the International institute for Environment and Development (IIED) and partners have convened the Community-based Adaptation (CBA) conference series. These conferences serve as a global forum for practitioners, governments and donors to share best practices and innovations in climate adaptation at the community level.

They are a key moment annually for learning and engagement on locally-led approaches to climate adaptation (LLA), which support communities in using their own knowledge and decision-making processes to take action on climate change.  

The 20th edition – CBA20 – will be held in Manila, organised by IIED in partnership with the Manila Observatory, Philippine Action for Community-led Shelter Initiatives, Inc (PACSII) and the Adaptation Research Alliance (ARA) and other partners. The core themes of CBA20 are:

1. Achieving just and equitable adaptation in urban areas,

2. Scaling local level health investments as a critical adaptation response , and

3. Knowledge nexus – combining local, traditional and Indigenous Peoples’ knowledge systems with climate science.

The ARA will lead the theme, ‘Knowledge-Nexus’  exploring how combining local, traditional and Indigenous Peoples’ knowledge systems with climate science can drive adaptation decision-making. Over five days, more than 300 participants from local community organisations, Indigenous Peoples’ organisations, NGOs, research institutes, governments, foundations and multilateral agencies will come together to share, learn and evolve understanding of best practices on locally led adaptation.  CBA20 is a key moment for the CBA and LLA communities on the road to the 2026 climate change conference (COP31).

Registration details