California just took a major step toward reshaping how electricity moves across the Western U.S. It’s a change that could transform the region’s power grid and boost clean energy.

A proposal to build one of the largest solar projects in the U.S. has been abruptly halted by the Trump administration — a move critics say undermines the nation’s renewable energy transition.

A new study shows Nevada’s groundwater — and the ecosystems that rely on it — is under growing strain. Researchers have mapped out solutions that could help and serve as a guide for other Mountain West states.

AI data centers use large amounts of water for cooling. And many are being built in the drought-stricken Mountain West, sparking concerns over water supplies.

A new report finds that rising temperatures are making droughts across the Mountain West and Southwest even worse — and longer-lasting.

Before the federal government shut down on Wednesday morning, the U.S. Geological Survey said it would team up with Mountain West states to study mine waste for critical minerals. Trump administration officials hope the effort will strengthen national security and support emerging technologies.

A new study finds the iconic whitebark pine, which spans several Mountain West states, could lose most of its habitat to climate change in the coming decades. Scientists say the loss could impact wildlife – and people.

For hundreds of years, Hispanic communities across the Southwest have relied on these networks of hand-dug irrigation ditches to water their crops and feed their families. Now, these ancient traditions are under pressure from a changing climate.

A new report shows tens of thousands of abandoned mines dot the U.S., including parts of the Mountain West. Experts say these sites pose pollution threats due to being in areas that are at high risk for flooding.

Climate change could be taking a toll on the smallest creatures in the Mountain West. A new study finds insect populations in one mountain valley have plunged by more than 70% in recent decades. Scientists say this trend could shake the food chain in alpine areas across the region.