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
Severnaya Zemlya Administratively Severnaya Zemlya was part of the Taymyr Autonomous Okrug until this okrug was merged into Krasnoyarsk Krai on 1 January 2007. Currently it belongs to the Taymyrsky Dolgano-Nenetsky District of Krasnoyarsk Krai. There has been a request at the Krasnoyarsk Krai Legislative Assembly to reinstate the former name of Severnaya Zemlya as "Emperor Nicholas II Land" (). This request, however, has been rejected for the time being. Severnaya Zemlya comprises four major islands – October Revolution, Bolshevik, Komsomolets, and Pioneer – and around 70 smaller islands, covering a total area of about . It is separated from the Taymyr