Arctic methane emissions permafrost thawing. Near the bottom of the first sinkhole, air contained unusually high concentrations of methane, according to tests conducted by the researchers. This hypothesis points to the destabilization of gas hydrates containing huge amounts of methane gas. According to researchers at Norway's Centre for Arctic Gas Hydrate (CAGE), through a process called geothermal heat flux, the Siberian permafrost which extends to the seabed of the Kara Sea, a section of the Arctic Ocean between the Yamal Peninsula and Novaya Zemlya, is thawing. According to a CAGE researcher, Aleksei Portnov, Methane hydrate is leaking in an area of at least
Arctic Ocean Hydrographic Expedition on currents, ice conditions, climate, and magnetic phenomena. In 1913 the hydrographic expedition of the Arctic Ocean discovered the large Emperor Nicholas II Land —now Severnaya Zemlya (Northern Land), the last significant geographical discovery on the globe. On 3 September 1913 (22 August 1913 in the Julian calendar used by Russia at the time), members of the expedition landed on what is now known as Cape Berg on present day October Revolution Island. They raised the Russian flag on the shore and named the new territory "Emperor Nicholas II Land", (Russian: "Zemlya Imperatora Nikolaya II"), after Emperor Nicholas II of