Lake Mead is holding steady, about 7 feet lower than it was last year, but projections released Tuesday show it will have a steep drop in 2027.

The lines in the sand haven't changed, even if warring states are working on a new deal to save the Colorado River.

Even if the Earth runs out of oil and gas, and a dense veil of smog plunges the world into darkness, we will still have ...

Emerald Cave, also known as Emerald Cove, shimmers with luminous green light. Here's the best time to visit Emerald Cave and ...

Cloud seeding is a concept that was sowed in the 1940s. Vincent J. Schaefer, Bernard Vonnegut and Irving Langmuir were ...

Pollution and climate change are fueling a megadrought in the Southwest U.S., threatening water supplies and reshaping the ...

W hen an asteroid made Meteor Crater in northern Arizona, it did more than leave the Earth’s best preserved impact crater.

The following Northern Colorado home sales were supplied by Colorado Weekly Homebuyers List., 303.744.2020. Listed are the ...

Is there a question that always pops into your mind as you're driving around Knoxville? Those are the ones we're answering in Know Your Knox.

It turns out that rivers choose their path based on erosion – a discovery that could transform flood planning and restoration.

An extreme heat warning is in effect for Lake Mead and the surrounding areas on Monday, highlighting the risk of "lethal temperatures" as triple-digit highs are expected.

Rivers are Earth's arteries. Water, sediment and nutrients self-organize into diverse, dynamic channels as they journey from ...