The most infamous and abundant greenhouse gas is carbon dioxide. But though less prolific, methane actually packs a meaner climate-warming punch.
To the dismay of climate scientists (and anyone concerned by global warming), there appears to a new and growing source of methane -- the deep sea.
In analyzing instances of bubble plumes, columns of rising methane gas bubbles, researchers found a growing number have been measured at a transition zone. The transition zone, beginning a third of a mile below the surface, is significant to stability of methane hydrates -- an area where warming water temperatures could encourage sublimation.
Study: Bubble plumes of methane escaping warming ocean
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