A retrogressive thaw slump is a type of landslide that occurs in the terrestrial permafrost region of the circumpolar Northern Hemisphere when an ice-rich section thaws. RTSs develop quickly and can e

Yedoma is an organic-rich Pleistocene-age permafrost with ice content of 50–90% by volume. Yedoma are abundant in the cold regions of eastern Siberia, such as northern Yakutia, as well as in Alaska an