The What Works Climate Solutions Summit is a transdisciplinary, inclusive, high-level conference to promote and catalyze synthetic evidence on climate solutions for upcoming climate change assessments – particularly the IPCC’s 7th Assessment Report ─ as well as other forms of scientific policy advice. It brings together leading experts on climate solutions, key institutions curating scientific policy advice on climate change such as science assessment bodies (IPCC, UNEP Emissions Gap etc.) and science academies, evidence synthesis communities (Campbell Collaboration, Cochrane, Collaboration for Environmental Evidence, Evidence Synthesis International, Evidence-based Research Network) as well as policymakers, research funders and other users of evidence to make progress towards major goals: 1. Initiate an ambitious work program on climate solutions and advance evidence synthesis methods for evidence-based policy 2. Building evidence synthesis capacity across the climate community: 3. Establishing a dialogue and forming new collaborations for evidence-based climate solution 4. Mainstream the topic of health in the wider discourse on climate solutions in science, policy and practice