This report provides a numerical analysis of how many climate change litigation cases were filed in 2023, where and by whom, and a qualitative assessment of trends and themes in the types of cases filed. It is the sixth report in the series, produced by the Grantham Research Institute in partnership with the Sabin Center for Climate Change Law and drawing on the Sabin Center’s Climate Change Litigation Databases. The report provides a synthesis of the latest research and developments in the climate change litigation field.