Some point that is not very clear if we read the article shallowly: the methane is not yet leaked to the ocean's surface, for now it is just melted, then dissol

Some point that is not very clear if we read the article shallowly: the methane is not yet leaked to the ocean's surface, for now it is just melted, then dissolved into the water, and microorganisms are converting it to CO2, which adds a huge new source of CO2 for our already overloaded system. I wonder how far away in the future is the point where the methane would actually raise quicker than bacteria are able to process it.