On November 18, 2016, on the margins of COP22, Galvanizing the Groundswell of Climate Action (GGCA), through the organisation of WRI, WWF, and NRDC, convened an informal dialogue with Parties, academic institutions, and experts engaged in various thematic areas to discuss ways to accelerate efforts by non-state actors. The purpose of this discussion was to reflect on where we want the global climate action agenda to be in 2018 and to consider the steps to be taken from now until then to realize that vision. This short summary synthesizes the discussion, carried out under Chatham House rules, from the perspective of GGCA.