Scientists: Permafrost in the Lena Delta receded

October 1, 2013. Suprapermafrost thickness of the soil layer in the Lena Delta in 15 years increased by 20%, which means the retreat of glaciers, reported in the Siberian Branch of RAS, with reference to the German Professor Hans-Wolfgang Hubbert, who participated in the Russian-German study of permafrost.

"Coastal erosion has doubled in a decade, into lakes and streams come before seen species, moving the northern boundary of woody plant species," — said Professor Hubberten, reports "Interfax".

In a statement, Professor Hubberten, director of the Alfred Wegener Institute Potsdam (AWI), summed up the preliminary results of the Russian-German expedition "Lena", which began to study the delta of the river in 1998.

Hubberten noted that in the summer on an island in the delta of the Lena Samoilovsky first two grown dwarf trees.

According to scientists, the retreat of glaciers due to the emission of greenhouse gases — methane from the ocean to the continent. Also, they noted that in the American Arctic, the reverse process. There's an area of Barrow was registered methane removal from the mainland to the ocean.

The Russian and German scientists also noted the "lack of comprehensive predictive models of the situation in the Arctic," which can take place under different scenarios — from the "greenhouse machine" to "special solar activity."

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