Lachenbruch was an expert in permafrost, the rock-like layer of frozen soil just below the thin, insulated cover of soil and vegetation. In December 1970, he released a study in which he explained ...

Permafrost—ground that remains frozen year-round—is capped by a few feet of dirt and plant detritus. Called the active layer, this soil normally thaws each summer and refreezes in winter ...

Permafrost, a perpetually frozen layer under the ground surface, contains rocks, soil, sand and, in some cases, pockets of pure ice. But not all permafrost warms up in the same way. Most Arctic ...

Core samples had been taken from just the top three metres of permafrost. The study instead analysed mercury in sediments in riverbanks and sandbars, tapping into deeper soil layers. It found that ...

This trend poses a significant threat to permafrost, which contains approximately one-third of the world’s soil organic carbon ... A sediment core was extracted from GSL, reaching depths ...

TASS/. The permafrost’s thawing in the tundra causes gradual, unobvious migration of pollutants into the soil’s upper layers thus threatening the Arctic territories, where intensive ...

"In Sweden, permafrost lands are important as soil carbon reservoirs and for traditional land use practices, such as reindeer herding. Like in other regions of the Arctic, permafrost thaw is ...

According to this, the thawing of the permafrost would lower the water table and allow water to drain away more easily, causing the soil to dry out in the long term. MPI-M researcher Philipp de ...

A transdisciplinary, comparative analysis reveals key risks from Arctic permafrost thaw. Communications Earth & Environment , 2025; 6 (1) DOI: 10.1038/s43247-024-01883-w Cite This Page : ...