In 2019 the Intergovernmental Panel on Climate Change (IPCC) approved the Special Report on The Ocean and Cryosphere in a Changing Climate (SROCC) as the third special report of the 6th Assessment Cycle, following the Special Report on GlobalWarming of 1.5°C (SR1.5) and the Special Report on Climate Change and Land (SRCCL). The SROCC addresses climate change phenomena for about 80% of the Earth’s surface as covered by the ocean and the cryosphere, and develops a picture how even these remote areas of the planet are affected by climate change. It also deals with how these changes feedback on human societies, through ice melt and associated sea level rise, or through ocean warming, oxygen loss and acidification impacting marine life and fisheries results. Terrestrial aspects cover the potential exacerbation of climate change and associated impacts through permafrost thaw.