Scientists and officials say they need to figure out why the famed alpine lake isn't improving despite decades and billions of dollars in efforts. Clarity last year was about 40 feet worse than in the late 1960s. Runoff from roads and air pollution are leading causes.

Inspectors at Lake Tahoe recently discovered a new aquatic invasive species on a boat before it launched, sparking regional concerns. Officials say the incident serves as a reminder that people across the Mountain West should be on alert.

A new analysis shows that climate change is causing the number of extremely hot summer days to rise in most major U.S. cities. Some of the biggest increases are in the Mountain West.

A new report from the U.S. Geological Survey (USGS) found that geothermal energy in the Great Basin could supply 10% of the nation’s electricity demand. However, greater engineering efficiency is needed to take full advantage of the heat beneath our feet.

A new analysis shows more than two-thirds of data centers built – or in development – since 2022 are in drought-prone areas, including parts of the Mountain West. Experts warn this could strain water supplies for cities and farmers.

A Republican representative from the Mountain West led an effort Wednesday to remove a controversial provision to sell 450,000 acres of federal land in Nevada and Utah from the House reconciliation bill.

A new study shows climate change is melting glaciers and permafrost in the Mountain West. Researchers say this can trigger the production of toxic mercury in mountain wetlands, posing risks to water supplies and wildlife.

Nationwide, tens of thousands of Indigenous households use firewood to help heat their homes. That’s why the Washoe Tribe of Nevada and California is making sure their elders have the chopped wood they need.

For decades, hydrologists believed most spring snowmelt rapidly enters rivers and streams. But a new study from the University of Utah shows that most of it spends years as groundwater before it spills into reservoirs – new research that could help western water managers and farmers better plan each year.

Republican representatives in Nevada and Utah this week were successful in getting an amendment to sell public lands in federal budget legislation. In Nevada, the idea is already facing strong opposition.