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
Cape Unslicht Cape Unslicht Cape Unslicht (, "Mys Peschanyy") is a headland in Severnaya Zemlya, Russia. Stretching out northwards NW of the Akhmatov Fjord and east of the mouth of Mikoyan Bay, this headland is the northernmost point of Bolshevik Island. Cape Unslicht is one of the landmarks defining the limits of the Laptev Sea according to the International Hydrographic Organization. The Laptev Sea shore of present-day Severnaya Zemlya was discovered by Boris Vilkitsky in 1913 during the Arctic Ocean Hydrographic Expedition on behalf of the Russian Hydrographic Service, but he was unaware that there was a strait west of the cape