claim: “Underneath the permafrost there are sediments full of methane hydrates.
evidences.evidence_id: Clathrate gun hypothesis:50
evidences.article: Clathrate gun hypothesis
evidences.evidence: (2008) estimate that not less than 1,400 gigatonnes of carbon is presently locked up as methane and methane hydrates under the Arctic submarine permafrost, and 5–10% of that area is subject to puncturing by open taliks.
evidences.votes: SUPPORTS SUPPORTS
evidences.evidence_id: Methane:122
evidences.article: Methane
evidences.evidence: Significant reservoirs of methane clathrates have been found in arctic permafrost and along continental margins beneath the ocean floor within the gas clathrate stability zone, located at high pressures (1 to 100 MPa; lower end requires lower temperature) and low temperatures (< 15 °C; upper end requires higher pressure).
evidences.votes: SUPPORTS SUPPORTS
evidences.evidence_id: Permafrost carbon cycle:50
evidences.article: Permafrost carbon cycle
evidences.evidence: Methane clathrate, or hydrates, occur within and below permafrost soils.
evidences.votes: SUPPORTS SUPPORTS
evidences.evidence_id: Permafrost:51
evidences.article: Permafrost
evidences.evidence: It also contains gas hydrates in places, which are a "potential abundant source of energy" but may also destabilize as subsea permafrost warms and thaws, producing large amounts of methane gas, which is a potent greenhouse gas.
evidences.votes: SUPPORTS SUPPORTS
evidences.evidence_id: Permian–Triassic extinction event:1069
evidences.article: Permian–Triassic extinction event
evidences.evidence: "The potential volume of oceanic methane hydrates with variable external conditions".
evidences.votes: NOT_ENOUGH_INFO NOT_ENOUGH_INFO