Mountain West News Bureau

Water experts are calling for urgent changes at Lake Powell and Lake Mead, as a dry winter could send reservoir levels dangerously low.

A team of researchers at Arizona State University is building models to track the amount of water in snow, soils and streams.

The Dragon Bravo fire burned about 145,000 acres. Some businesses and trails are now back open.

Dozens of communities and environmental groups in the Colorado River Basin are asking Congress for $2 billion to endure what they’re calling “one of the most challenging hydrologic years in more than a century of recordkeeping.”

Fire weather days are different than fire season. They are increasing due to climate change.

Authors say: this could impact preparedness before wildfire season

The Trump administration is returning to 2012 emission rules, which it says have cut mercury pollution by 90%. Environmentalists say that’s not enough.

The Arizona Department of Water Resources is gearing up for a legal fight over Colorado River negotiations and has hired a law firm to represent the state.

After finally being sworn in following a historic seven-week delay, Arizona Congresswoman Adelita Grijalva is using her first legislative act to fulfill a campaign promise she made to tribes in Arizona and across Indian Country.

The American Lung Association’s annual air quality report shows that some of the most polluted air is in the areas around Las Vegas, Phoenix, Denver, and Salt Lake City, but some of the cleanest is in the mountain areas in Wyoming, Colorado, St. George, Utah, and Prescott Valley, Ariz.