This report makes explicit and quantifies at global scale the role that achieving some of the biodiversity targets being developed for the post-2020 global biodiversity framework can play in mitigating climate change. It uses joint spatial optimisation of carbon and biodiversity values to identify areas of global importance for achieving climate and biodiversity objectives. Modelled projections of land-use change that would otherwise occur in these areas are used to evaluate how much conservation and ecosystem restoration in line with draft targets can contribute to climate mitigation.  This is based on calculating carbon dioxide emissions avoided through conservation and removals enhanced through sequestration in restored ecosystems.  The information in the report will help policy leaders in both climate and biodiversity to position nature more centrally in the climate agenda and to strengthen both ambition and implementation of action to resolve the linked crises of climate change and biodiversity loss.