Ancient, hydrogen-rich waters discovered deep underground at locations around the world

This is very cool. Even better, this has implications for astrobiology as well.

“Until now, none of the estimates of global hydrogen production sustaining deep microbial populations had included a contribution from the ancient continents. Since Precambrian rocks make up more than 70 per cent of the surface of Earth’s crust, Sherwood Lollar likens these terrains to a “sleeping giant,” a huge area that has now been discovered to be a source of possible energy for life,” she said.
— http://esciencenews.com/articles/2014/12/17/ancient.hydrogen.rich.waters.discovered.deep.underground.locations.around.world