Answer:
The correct answer is methane hydrates.
Step-by-step explanation:
Huge concentrations of methane hydrate have been discovered underneath the Arctic permafrost, in the sedimentary deposits along the continental margins all over the world, and underneath the Antarctica ice. In some regions of the world, they are much closer to the regions of high-population in comparison to any natural gas field. These close deposits would permit the nations to import natural gas in order to become self-reliant. However, this new source of energy is very costly to obtain.