Earth’s environment is in constant flux. Driven by physical processes, biological processes (now including the effects of human activity), and their interactions, incessant changes occur at virtually ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn when you read this story: “The Great Unconformity…represents a globally ...

Dinosaurs had such an immense impact on Earth that their sudden extinction led to wide-scale changes in landscapes—including the shape of rivers—and these changes are reflected in the geologic record, ...

The continental volcanism, oceanic volcanism and mid-ocean ridge volcanism emit Hg to the atmosphere and ocean. Mercury in atmosphere deposit to aquatic and terrestrial systems via wet or dry ...

In August, the United States Geological Survey (USGS) released its most extensive geological map to date. It's called The Cooperative National Geologic Map, and it provides an interactive look at the ...

NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of ...