ecent warming has degraded large sections of permafrost, with pockets of soil collapsing as the ice within it melts. The results include buckled highways, destabilized houses, and "drunken forests" of trees that lean at wild angles. (National Center for Atmospheric Research)

The different climatic conditions determinate the cryogenic asymmetry of the Antarctic Peninsula with respect the continuous permafrost on north-east side and the discontinuous permafrost on the west sector. (tierradelfuego.gov.ar)

Understanding permafrost is not only important to civil engineering and architecture, it is also a crucial part of studying global change and protecting the environment in cold regions. (The National Snow and Ice Data Center)