The Yedoma Action Group aimed to synthesize existing information and generate new data products on the circum-arctic distribution of Yedoma permafrost. , Due to their very high excess ice content, Yedoma deposits are especially prone to degradation under projected future climate scenarios in Siberia, Alaska and the Yukon. Thawing of organic rich Yedoma releases greenhouse gases, which is contributing to climate change. Recently, we finalised the last deliverables by guest editing a special issue in the open access journal Frontier in Earth Science entitled “Yedoma Permafrost Landscapes as Past Archives, Present and Future Change Areas” (https://www.frontiersin.org/research-topics/15964/yedoma-permafrost-landscapes-as-past-archives-present-and-future-change-areas)