Greg Hahne

AG Kris Mayes formally disapproved of a rule the Arizona Corporation Commission approved in March that repealed renewable energy standards for utilities.

Scottsdale will be using part of its recent water rate increase to fund additional water sources and supply. The Scottsdale City Council approved a 4.5% rate bump last month.

Arizona Democratic Sen. Mark Kelly is among those in Washington questioning President Donald Trump's appointment of Bill Pulte as acting director of national intelligence.

As geothermal energy interest has grown in Arizona, congressional lawmakers have advanced measures in Washington to give the industry a boost.

The vast majority of galaxies have a black hole at the center, keeping everything in orbit. The black hole is 13 billion light years from Earth.

The USDA’s Great American Cotton Plan includes efforts to assist in pest research and farmer financial aid and increase cotton exports.

There's a linguistic concept called the "gleam-glum effect," where some phonetic sounds seem to evoke different emotions.

The tool will categorize dust storms based on dust concentration, but will also measure wind speed and area covered.

The National PFAS Conference is being held in Tucson, the first time it's been held west of the Mississippi River.

Arizona Republicans have passed similar bills in recent years that have all been vetoed by Democratic Gov. Katie Hobbs.