Igor Semiletov

Expeditions to the Eastern Arctic and Kara Seas investigated the thermal properties of bottom sediments. Numerous zones of bubbling methane flux were discovered in the shelf of the Laptev Sea and the East Siberian Sea, which researchers believe is affecting climate warming in the Arctic. The study has been published inMarine and Petroleum Geology.

A team of researchers has studied ice-containing sediment on the East Siberian Arctic Shelf. The researchers proved that the melting of underwater permafrost is caused not only by the warming of sea water, but also by migrations of its salt ions (mostly NaCl). The HSE News Service reports on this and other studies conducted by the HSE Institute of Ecology.