In this action research project, ICLEI is providing support to four cities in developing collaboration mechanisms that advance climate resilient developmment, which can then be adapted to other contexts. The implementation of each country’s Nationally Determined Contribution (NDC) via enhanced multi-level governance has been identified as an area of focus of this project. Through this project, ICLEI builds on the understanding of what enables collaboration mechanisms for climate resilient development, such as environments that allow for learning-by-doing and accumulation of knowledge that can be harnessed, local government officials who are engaged and passionate about building climate resilience, and cities where strong multi-sectoral partnerships exist. Building climate resilience is a multi-sectoral and multi-disciplinary issue, and therefore ICLEI promotes collaborative governance, which favours transdisciplinary collaborations that increase the depth and breadth of knowledge and expertise that can be drawn on when tackling complex issues such as climate resilience.