This Yearbook – the fourth produced by the High-Level Champions – presents the current range and state of global climate action by non-Party stakeholders (cities, regions, businesses, investors, and civil society), examines the impacts of the COVID-19 pandemic and opportunities for a green resilient recovery. It also explores the key elements of the Climate Action Pathways, and delivers key messages and reflections from the Champions on the future of the Marrakech Partnership for Global Climate Action.