Submission + - Helium Discovered Under Yellowstone National Park (ibtimes.com)
minty3 writes: Vast stores of helium that have accumulated in the Earth’s crust for up to 2 billion years are escaping through volcanic rocks beneath the national park, a new study published in the journal Nature suggests. The helium, which is being released at about 60 tons per year, is due to the advent of volcanic activity in the region over the past 2 million years.