These papers identified methane ebullition from thermokarst lakes to be a significant source of atmospheric methane, a potent greenhouse gas.
12.
Numerous baydzharakhs, thermokarst mounds, dot the landscape; they are the result of the melting of polygonal ice wedges within the permafrost.
13.
The hole, doomed saplings and sod lying in the bottom, is a thermokarst : a sinking plot of ground caused by thawing permafrost.
14.
Continued thawing of the permafrost substrate can lead to the drainage and eventual disappearance of thermokarst lakes, leaving them, in such cases, a geomorphologically temporary phenomenon.
15.
Eemian lake sediments fill depressions, i . e . ice wedge casts and thermokarst lakes, which developed by the surficial thawing during Eemian interglacial climates of Saalian ice-wedges and other permafrost.
16.
The "'North Siberian Lowland "'( ), also known as "'m high, which rise over broad and heavily swamped degradations with a large number of thermokarst lakes.
