Photo: In the future power stations could use gas extracted from seams of coals deep underground to generate electricity, say experts (Source: ABC)From ABC News (Australia):
Burning coal underground could be one of the next breakthroughs to increase the world's energy supply, say some experts.
They say the technology could provide access to additional coal reserves that are either too deep or remote to mine.
But the approach is so far untested on a commercial scale, making the initial expense a concern for governments and investors.
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