This isn’t good
"“This may be the first comprehensive observation of active release from methane hydrates on the Siberian-Arctic slope system,” the team added.
When methane is released into the atmosphere, it is 86 to 105 times as powerful as carbon dioxide at disrupting the climate over a 20-year period.
Vast amounts of methane are stored in the Arctic in natural gas deposits, permafrost, and as undersea clathrates - a solid compound of water and methane similar to ice.
Like the permafrost on land, clathrates degrade on warming, releasing the stored methane which then causes further warming. This in turn can stimulate both the production of methane (through the rotting of organic material), and its release, in a heating feedback cycle."