pretty sure no one has any real idea only theories. hopefully it doesn't start some crazy volcano that eventually engulfs everything. when this planet does go the way of the buffalo it likely will be our own fault.
I was secretly hoping for that Russian drill team in the arctic tapping into that frozen lake to unleash some sort of crazy frozen, earth-destroying demon/alien
Perhaps I will shift my wishes to this mantle quest to unlease some fiery, earth-destroying demon/alien.
Remember pressures. Any fiery, earth-destroying demon/alien would consider where we live to be incredibly inhospitable, on the grounds that if they actually come up here, they will explode. And not even nuclear-style "wipe out all life on Earth, ha ha ha!" type explosion, but just a dead-fiery-earth-destroying-demon/alien-making-a-short-lived-unpleasant-mess sort of explode. You wouldn't want to be standing right next to it, but on the grand earth-destroying scale it'd be barely a blip.