Special report on Global Warming of 1.5 °C in October 2018 Refinement to the 2006 IPCC Guidelines for National Greenhouse Gas Inventories in May 2019 Special report on the Climate Change and Land in August 2019 Special report on the Ocean and Cryosphere in a Changing Climate in September 2019 WGI contribution "The Physical Science Basis of Climate Change" in August 2021[7][8] WGII contribution "Impacts, adaptation and vulnerability" in February 2022 WGIII contribution "Mitigation of climate change" in March 2022 Synthesis Report in October 2022[9]