Undersea Clathrates . . .
Clathrate:
A naturally occurring compound formation where molecules of one component/element are physically trapped/encased within the crystalline structure of another.
Huge amounts of methane are stored around the world in the sea floor in the form of solid methane hydrates. These hydrates represent a large energy reserve for humanity. Climate warming, however, could cause the hydrates to destabilize. The methane, a potent greenhouse gas, would escape unused into the atmosphere and could even accelerate climate change.
world ocean review