Working together to build resilient

communities across California.

ARCCA Learning Sessions

ARCCA Learning Session webinars are back! Learn more and register for upcoming webinars here.



Join California’s largest statewide network of climate adaptation leaders, practitioners, and influencers!


2023 Legislative Tracker

Stay up-to-date on the status of key adaptation-related bills this session.


2022 Legislative Update

Check out California’s 2022 adaptation laws and the State’s historic climate resilience budget package.


Join the CA Resiliency Listserv

Exchange news and opportunities with peers from across the state.


Build Your Adaptation Capabilities

Use the Adapt-CA Toolkit to advance your agency’s adaptation capabilities.


Local Adaptation Plans

See what adaptation strategies California local agencies are planning to implement.

The Alliance of Regional Collaboratives for Climate Adaptation (ARCCA) is a network of leading regional collaboratives and allies from across California that work together to advance adaptation statewide and increase local capacity to build community resilience. Through ARCCA, adaptation practitioners connect with peers across the state to exchange knowledge, engage in targeted problem-solving, and implement joint campaigns, effectively breaking down silos across sectors and jurisdictions.

Our Members

ARCCA is a coalition program of CivicWell (formerly known as the Local Government Commission), a 501(c)3 nonprofit organization supporting sustainable policies and the community leaders who implement them. It inspires, equips, connects, and cultivates leadership for local innovation and community change, especially for leaders responding to the climate crisis and its impacts on their communities.