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
Novaya Zemlya The Ministry for Atomic Energy has performed a series of subcritical underwater nuclear experiments near Matochkin Shar each autumn since 1998. These tests reportedly involve up to of weapons-grade plutonium. Novaya Zemlya is an extension of the Northern part of the Ural Mountains, and the interior is mountainous throughout. It is separated from the mainland by the Kara Strait. Novaya Zemlya consists of two major islands, separated by the narrow Matochkin Strait, as well as a number of smaller islands. The two main islands are: The coast of Novaya Zemlya is very indented, and it is the area with the