Earth sweltered in greenhouse heat for 226 million years, from the late Permian to the early Oligocene. Then the switch flipped and an icehouse world arrived.
The EPA mission to protect the environment will be fulfilled by releasing more methane—what?
Oxygen was disappearing from the atmosphere for a billion years, Why?
The first ecosystems in geological history, wiped out by oxygen
Exploring for oil is like engaging in the ultimate solve-a-mystery game.
Supply and demand made the shale oil industry the architect of its own demise.
Yellowstone, where geology’s interaction with the atmosphere, hydrosphere, and biosphere is on display.
Kimberlite pipes eject commercially valuable diamonds and geologically valuable zircons.
Global warming of 3 degrees Celsius is a most likely case.