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1. Permafrost Organic Carbon Mobilization From the Watershed to the Colville River Delta: Evidence From ¹⁴ C Ramped Pyrolysis and Lignin Biomarkers

   https://doi.org/10.1002/2017GL075543  

   Zhang, Xiaowen ; Bianchi, Thomas S. ; Cui, Xingqian ; Rosenheim, Brad E. ; Ping, Chien‐Lu ; Hanna, Andrea J. M. ; Kanevskiy, Mikhail ; Schreiner, Kathryn M. ; Allison, Mead A. ( November 2017 , Geophysical Research Letters)
2. Permafrost Organic Carbon Turnover and Export Into a High‐Arctic Fjord: A Case Study From Svalbard Using Compound‐specific ¹⁴ C Analysis

   https://doi.org/10.1029/2020JG006008  

   Kusch, Stephanie ; Rethemeyer, Janet ; Ransby, Daniela ; Mollenhauer, Gesine ( March 2021 , Journal of Geophysical Research: Biogeosciences)
3. Predicted Vulnerability of Carbon in Permafrost Peatlands With Future Climate Change and Permafrost Thaw in Western Canada

   https://doi.org/10.1029/2020JG005872  

   Treat, Claire C. ; Jones, Miriam C. ; Alder, Jay ; Sannel, A. Britta ; Camill, Philip ; Frolking, Steve ( May 2021 , Journal of Geophysical Research: Biogeosciences)
4. Free Iron and Iron-Reducing Microorganisms in Permafrost and Permafrost-Affected Soils of Northeastern Siberia

   https://doi.org/10.1134/S1064229320100166  

   Rivkina, E. M. ; Fedorov-Davydov, D. G. ; Zakharyuk, A. G. ; Shcherbakova, V. A. ; Vishnivetskaya, T. A. ( October 2020 , Eurasian Soil Science)
5. Modeling Long-Term Permafrost Degradation: HOW FAST PERMAFROST CAN THAW?

   https://doi.org/10.1029/2018JF004655  

   Nicolsky, D. J. ; Romanovsky, V. E. ( June 2018 , Journal of Geophysical Research: Earth Surface)

   Permafrost, as an important part of the Cryosphere, has been strongly affected by climate warming, and a wide spread of permafrost responses to the warming is currently observed. In particular, at some locations rather slow rates of permafrost degradations are noticed. We related this behavior to the presence of unfrozen water in frozen fine‐grained earth material. In this paper, we examine not‐very‐commonly‐discussed heat flux from the ground surface into the permafrost and consequently discuss implications of the presence of unfrozen liquid water on long‐term thawing of permafrost. We conducted a series of numerical experiments and demonstrated that the presence ofmore »fine‐grained material with substantial unfrozen liquid water content at below 0°C temperature can significantly slow down the thawing rate and hence can increase resilience of permafrost to the warming events. This effect is highly nonlinear, and a difference between the rates of thawing in fine‐ and coarse‐grained materials is more drastic for lower values of heat flux incoming into permafrost. For high heat flux, the difference between these rates almost disappears. As near‐surface permafrost temperature increases towards 0°C and the changes in the ground temperature become less evident, the future observation networks should try to incorporate measurements of unfrozen liquid water content in the near‐surface permafrost and heat flux into permafrost in addition to the existing temperature observations.« less