The geological process that offsets carbon emissions from thawing permafrost is chemical rock weathering. As permafrost degrades, it exposes previously buried minerals and increases water-rock interactions.

The geological process that offsets carbon emissions from thawing permafrost is chemical rock weathering. As permafrost degrades, it exposes previously buried minerals and increases water-rock interactions. 
How the Offset Works
The Mechanism: -
As glaciers retreat and permafrost thaws, underground reactive minerals are exposed to water, which accelerates chemical weathering. This process naturally draws down atmospheric .
Regional Impact:-
 Research on the Qinghai-Tibet Plateau found that rock weathering offsets about 35% of the CO2 emitted by permafrost rivers on average. 
Coverage Dependency:-
 The offset strength varies directly with permafrost extent.Continuous Permafrost:-
 Weathering only offsets about 15% of biological emissions.
Discontinuous/Isolated Permafrost:- Weathering uptake can exceed 100% of the emissions, making the region a net carbon sink. 
Scientific Recognition
This geological carbon removal mechanism was highlighted in a major study published in the journal Nature by researchers from Umeå University and East China Normal University. The findings challenge the traditional view that permafrost thaw is strictly a positive feedback loop for greenhouse gas emissions. 
MJF Lion ER YK Sharma 

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