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 lost more than three-fourths of the merchant ships committed to the convoy — more than one fourth of the losses to American shipping in all convoys to northern Russia. The destruction of PQ-17 significantly affected the people dependent on supplies carried by the ill-fated merchant ships. Karlo Stajner, a Gulag prisoner in Norilsk in 1942, wrote “the German cruiser’s attack on Novaya Zemlya and the sinking of the food transports had catastrophic consequences…the population was left without provisions…supplies in the warehouses of Norilsk [were] distributed among the NKVD, the guards, and the few free civilians that lived in the town.”