
Civilization exists by geologic consent, subject to change without notice.
The land beneath Yellowstone's caldera is hot.
Huffing and puffing. Moving, stretching and bulging.
Everything has a boiling point. Yellowstone has reached the point of no return.
"Take...

Our world has been ravaged five times. It's been fried, and then frozen; gassed with poison; smothered with ash; and bombarded from space. Will it happen again? Most certainly. When? Any time. The...