The Staggering Numbers Behind Earth's Greatest Freshwater System S. Environmental Protection Agency. They contain 21% of the ...

A study led by University of Arizona researchers shows that decades of groundwater pumping by humans has depleted Tucson-area ...

New research reveals Mars’ mysterious gullies were carved by burrowing CO₂ ice blocks, not water, reshaping its story.

The USGS publishes a geological map that reveals the underground layers of the U.S. and supports environmental education and ...

Research on charcoal pieces from ancient debris flows has shown fires and erosion have shaped Earth’s landscape for at least thousands of years. However, the rising risk of wildfires near populated ...

By contrast, industrial sites owned by unprofitable companies with higher levels of innovation and more personnel tend to handle higher proportions of their toxic waste in more environmentally ...

Behold … a vast circular expanse before you, the waters of which are so extremely clear as to be absolutely diaphanous or ...

Maynard Owen Williams was National Geographic's first foreign correspondent, and in 1923 he was on hand for an event the ...

Florida’s springs are a window into the state’s groundwater system. Revitalizing them will require multiple solutions ...

This article is brought to you by our exclusive subscriber partnership with our sister title USA Today, and has been written by our American colleagues. It does not necessarily reflect the view of The ...

High in Alaska’s Brooks Range, streams that once ran so clear you could drink from them are now the color of rusty tea. The water looks hazy, smells metallic, and can stain rocks orange for miles.

In Alaska’s Brooks Range, rivers once clear enough to drink from now run orange and hazy with toxic metals. As warming thaws formerly frozen ground, it sets off a chemical chain reaction that is ...