Brandon Loomis

The Interior Department announced a $10 million investment in landscape restoration projects in Arizona, with a focus on rooting out invasive species.

Thousands of acre-feet of water are lost each year in Phoenix's leaky delivery pipes and at homes with undetected leaks.

The federal government says cash deals helped prevent a Colorado River crash for now. A longer-term deal between the states is needed by 2026.

Mining company Hudbay needs an aquifer protection permit for its Copper World Mine near Tucson. Some neighbors urge the state to reject it.

Gov. Katie Hobbs wants new groundwater protections, says a GOP plan is too little and would cause see the water "sucked out from under" small towns.

Arizona's groundwater law offers rural communities little protection from big farming operations. Kris Mayes says a nuisance lawsuit could help.

The U.S. Forest Service has a new firefighting helicopter base outside of Payson. This week, a helitack crew is using it to stage a prescribed burn.

The mountains that send meltwater to the Colorado River started April well above average for projected water supply, but started May below average.

In Arizona's Sky Islands, dry summers may be pushing some bird species away from traditional migratory routes.

Phoenix gets national coverage for dangerous heat, but rising temperatures force New York to confront past and present inequities.