Results 171 to 180 of about 43,136 (296)

Permafrost Degradation Drives Shifts in Chemostasis and Stream Geochemistry in the McMurdo Dry Valleys, Antarctica

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract In the McMurdo Dry Valleys, Antarctica's largest ice‐free area, the stream channels consist of rock and sediment that are underlain by permafrost. Substantial permafrost degradation and channel erosion occurred in January 2012 on the west branch of Crescent Stream, while the east branch remained unaffected.
Anna Wright, Michael Gooseff, Kathleen Welch, Melisa Diaz   +3 more
wiley   +1 more source

Resolving circumarctic zero-curtain phenomena with AI-integrated earth observations. [PDF]

Sci Rep
Gay BA, Miner KR, Rietze N, Poulter B, Pastick NJ, Miller CE.   +5 more
europepmc   +1 more source

Interannual Variability of Compound Hot‐Dry Events Over the Tibetan Plateau

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 17, 16 September 2026.
Abstract Associated with a warming tendency, a large variability of compound hot‐dry events (CHDEs) is evident in the Tibetan Plateau (TP), but the underlying mechanisms remain poorly understood. In this study, we analyze the interannual variability of summer CHDEs over the TP, identify the key large‐scale climate drivers, and reveal the dominant ...
Rongyun Pan, Tianjun Zhou, Kexin Gui, Lixia Zhang, Wenxia Zhang, Jie Jiang   +5 more
wiley   +1 more source

Vegetation browning patterns under compound soil and atmospheric dryness in northern permafrost ecosystems. [PDF]

Nat Commun
Wu M, Sonnentag O, Lara MJ, Ran Y, Chen HW, Zhang W, Ciais P, Elberling B, Li X, Chen A, Wang S, Yi Y, Peng C, Chen D.   +13 more
europepmc   +1 more source

Sedimentology and geochemistry of the recent sediments of the river system on Hurd Peninsula, Livingston Island, Antarctica

The Depositional Record, Volume 12, Issue 4, September 2026.
This study investigates the sedimentology and geochemistry of recent sediments from ephemeral river systems on Hurd Peninsula, Livingston Island, Antarctica. These systems are important for understanding sedimentary and geochemical processes in unique polar environments.
Yakup Çelik, Merve Özyurt, Raif Kandemir   +2 more
wiley   +1 more source

Active layer thickening enhances environmental adaptability of larch and birch in northeast China's permafrost region. [PDF]

BMC Plant Biol
Li B, Wu X, Yang D, Dong X, Zang S.
europepmc   +1 more source

Effects of Climatic Factors and Disturbance on Plant Above‐Ground Biomass and Species Diversity of Chinese Grasslands: A Meta‐Analysis

Ecology and Evolution, Volume 16, Issue 9, September 2026.
This meta‐analysis across China reveals that grassland biomass is primarily driven by human disturbance and precipitation, while biodiversity is more influenced by climate. Both metrics perform better under mowing and fencing than grazing, with biodiversity and biomass generally sharing a positive linear relationship.
Wenjie Huang, Yuanyuan Yin, Wei Wang, Fangzheng Liu, Yilei Zhao, Junsheng Li   +5 more
wiley   +1 more source

Rock weathering can counteract river CO₂ emissions induced by permafrost thaw. [PDF]

Nature
Zhang L, Bufe A, Dean JF, Rocher-Ros G, Sponseller RA, Stanley EH, Karlsson J, Butman DE, Liu R, Hou L, Ding J, Piao S, Xia X, Battin TJ.   +13 more
europepmc   +1 more source

Global threats, local opportunities: ice‐related landforms provide refugia for high‐elevation plants and arthropods

Ecography, Volume 2026, Issue 9, September 2026.
Ice‐related landforms in mountain areas have been hypothesized to play a key role in the survival of cold‐adapted species threatened by climate change. However, our understanding of such landforms acting as refugia remains speculative. Here we analyse occurrence data, collected through a standardized sampling at 471 sampling points across the European ...
Mauro Gobbi, Barbara Valle, Mattia Brambilla, Duccio Tampucci, Marco Caccianiga   +4 more
wiley   +1 more source

Saline Permafrost and Cryopegs as Potentially Important Sources of CO₂-Assessing Organic Carbon Mineralization Potentials on the Alaskan Coastal Plain. [PDF]

Glob Chang Biol
Seemann F, Baysinger MR, Liebner S, Treat C, Zech M, Jenrich M, Grosse G, Jones BM, Strauss J.   +8 more
europepmc   +1 more source