Focal Interest
Focal Interest

Permafrost

  1. Freshwater and carbon export to northern Alaska estuaries increased
    Model-based analysis reveals intensified freshwater and organic carbon discharge to northern Alaska's Beaufort Sea estuaries driven by permafrost thaw and hydrological cycle changes.
  2. Microbial methane release identified in inner Laptev Sea subsea permafrost
    Triple-isotopic analysis reveals old microbial methane from subsea permafrost drives methane release in the inner Laptev Sea, contrasting with thermogenic sources elsewhere on the Arctic shelf.
  3. Ice- and peat-rich permafrost degraded gradually on Eboling Ridge
    Organic-rich permafrost on China's Qilian Eboling Ridge degrades slowly due to ice-carbon coupling that provides thermal insulation, reducing climate sensitivity compared to mineral-dominated regions.
  4. Old dissolved carbon from permafrost thaw accumulates in Siberian lakes
    Study reveals that up to 75% of dissolved organic carbon in Siberian thermokarst lakes originates from permafrost thaw, yet this ancient carbon accumulates rather than rapidly converting to.