On June 6-7, 2019, the Global Delivery Initiative and the Climate Investments Funds (CIF) convened a learning event. The event built on a collaboration between CIF and GDI on a case study series about how practitioners faced and overcame delivery challenges – non-technical, sometimes unexpected, obstacles to implementation – in climate projects. This partnership leverages unique comparative advantages: GDI’s focus on delivery challenges, methodologies for documenting them, and the adaptive approaches that can help overcome them complemented CIF’s status as the world’s largest multilateral climate finance instrument and extensive experience in this arena