Dan Ward says: “The region circled in red, is a portion of the East Siberian Arctic Shelf (ESAS). This region is roughly the same square kilometers as Greenland, it contains an estimated 1700 gigatons(gts) of frozen methane, about 20 kilometers thick. Note: The ridges in the Arctic abyssal basin are higher than the Alps, and many are volcanos. There is enough methane there, to blow Texas to the moon, or further . . . “If 50gts suddenly releases, we cannot survive it” ~ Professor Peter Wadhams. 50gts is just 3% of total methane stores there! It’s under only 50+/-mdters of water, that used to be covered with sea ice year round. Sea ice served (past tense) as a cap or seal, to keep the methane from releasing. Guess what? The sea ice is GONE”.1
1 Dan Ward on ‘Arctic news’ facebook. (25 August 2018). https://www.facebook.com/groups/arcticnews/permalink/10156705206524679/?_xts__=68.ARAX5FbeCrAAcBIPvyIgWmL7_AcnLywvRBIO6Uypx89m1fPJuSN8nBs4celcMPhqdOZmxpBXL_Isij1J3TJhVSxBT8m6WcIOgFqOqlKo_JdQUAdX7qV7kWJrsEnrNoE4MdJaObg&__tn__=-R.