Legislative panels gave initial approval Wednesday to a $100 million plan for fighting fires and their effects, but not before the discussion strayed into the question of climate change and whether humans are responsible for the heat and drought conditions that result in huge blazes.

The future is murky for many Arizona rivers and streams now that changes to the Clean Water Act have narrowed federal oversight. Yet with no map or list delineating where state control begins, the number of vulnerable waterways in Arizona is immense.

In the middle of any crisis, Arizonans expect our leaders to use every tool at their disposal to do what is best for our communities. But as the coronavirus pandemic impacts all Arizonans, President Trump’s Environmental Protection Agency is taking ...

Arizona’s Department of Environmental Quality is allowing a uranium mine operator to spray water laced with uranium and arsenic on the ground to keep dust down on its site, but it is considering the status of the mine’s permit.

Environmental groups are trying to halt a plan by the Bureau of Land Management to lease out more than 4,000 acres of land near the Petrified Forest National Park for oil and gas exploration.

Environmental groups will get a new chance to force the U.S. Forest Service to ban hunters from using lead ammunition in the Kaibab National Forest in a bid to protect condors.

Gov. Doug Ducey said Friday he sees no reason for farmers to give up growing cotton in the desert, even with the ongoing drought situation.

A proposal by a Southern Arizona lawmaker could make it easier for groups to propose their own state laws and constitutional amendments.

The governor and his staff are playing an integral role in bringing Arizona water interests together to reach an internal state agreement on the drought-contingency plan.

In a major victory for environmental groups and the Havasupai Tribe, the U.S. Supreme Court on Monday rebuffed a bid by mining interests to overturn a 20-year ban on extracting uranium from about a million acres around the Grand Canyon National Park.