Methane release from Arctic seafloor

Combined observations and modeling of gas hydrates—an ice-like water and gas solid—in the top layer of the Arctic seafloor indicate that thermogenic methane was sequestered subglacially as gas hydrates during the Barents Sea glaciation and that subsequent ice sheet retreat and incursions of warm Atlantic bottom water forced the gas hydrates to dissociate, creating a field of seafloor domes and explaining episodic methane release over the last 30,000 years. - Read at PNAS

Article #16-19288: “Postglacial response of Arctic Ocean gas hydrates to climatic amelioration,” by Pavel Serov et al.