A new study shows climate change is causing the Earth’s supply of fresh water to quickly disappear. One of the world’s fastest-drying regions is the American Southwest, where future food supplies could be threatened.

The Gold King mine spill wasn’t the first big, unexpected release of acidic drainage from the mines near Silverton. Nor was it the last.

Researchers are working on the largest study of hail in the U.S. in 40 years.

Prescribed burns are widely recognized as an effective wildfire mitigation tool. Now, using satellite imagery, land management records and fire emissions data, a team of researchers has put hard numbers to those impacts.

A new study shows that utility companies in Colorado, Utah, Nevada, Arizona, and New Mexico are predicting explosions in energy demand due to data centers that power artificial intelligence.

The Trump administration proposes eliminating a 2009 finding that greenhouse gases endanger people. That would undermine the EPA's climate change regulations for power plants and cars.

A new report shows the Mountain West needs to prepare for data centers, which are expected to demand massive amounts of energy and water. Experts say communities should adopt policies that prevent energy bills from rising and water supplies from shrinking.

Fireflies are nature's flash mob — appearing briefly to dazzle and glow before dying. That makes the charismatic creatures, which are crucial to ecosystem health, challenging to study. However, a team of scientists is learning more about them by appealing to their romantic side.

Hot, dry weather and abundant fuels created the perfect storm for lightning-caused fires on the Western Slope and in southeastern Utah. Drought forecasters are predicting little relief later this summer.

The persistent Dragon Bravo Fire on the North Rim of the Grand Canyon destroyed dozens of buildings this weekend. Perhaps none were more iconic than the Grand Canyon Lodge.