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
Belaya Zemlya Belaya Zemlya Belaya Zemlya (, literally "White Land") is a group of three cold, glaciated islands. It is a geographical subgroup of Franz Josef Land, Russian Federation. This area was named Hvidtenland (Norwegian: "White Land") by Fridtjof Nansen, who reached this desolate place on August 5, 1895 during his polar expedition. In his map he drew four islands. Since the limit of permanent ice crosses Belaya Zemlya, it is often difficult to distinguish between land and sea. However, as the cartography of the Franz Josef Archipelago became more accurate, it became apparent that it was a group of three islands.